./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.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 a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 13:23:13,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 13:23:13,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 13:23:13,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 13:23:13,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 13:23:13,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 13:23:13,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 13:23:13,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 13:23:13,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 13:23:13,870 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 13:23:13,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 13:23:13,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 13:23:13,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 13:23:13,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 13:23:13,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 13:23:13,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 13:23:13,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 13:23:13,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 13:23:13,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 13:23:13,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 13:23:13,873 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 13:23:13,874 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 13:23:13,874 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 13:23:13,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 13:23:13,875 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 13:23:13,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 13:23:13,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 13:23:13,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 13:23:13,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 13:23:13,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 13:23:13,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 13:23:13,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 13:23:13,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 13:23:13,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:23:13,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 13:23:13,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 13:23:13,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 13:23:13,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 13:23:13,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 13:23:13,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 13:23:13,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 13:23:13,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 13:23:13,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d [2024-11-12 13:23:14,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 13:23:14,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 13:23:14,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 13:23:14,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 13:23:14,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 13:23:14,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2024-11-12 13:23:15,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 13:23:15,462 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 13:23:15,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2024-11-12 13:23:15,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57affb60d/222ecef44aaa441ea21b231bc56982ee/FLAGa57a710d3 [2024-11-12 13:23:15,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57affb60d/222ecef44aaa441ea21b231bc56982ee [2024-11-12 13:23:15,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 13:23:15,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 13:23:15,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 13:23:15,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 13:23:15,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 13:23:15,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:23:15" (1/1) ... [2024-11-12 13:23:15,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21dab451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:15, skipping insertion in model container [2024-11-12 13:23:15,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:23:15" (1/1) ... [2024-11-12 13:23:15,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 13:23:16,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:23:16,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 13:23:16,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 13:23:16,223 INFO L204 MainTranslator]: Completed translation [2024-11-12 13:23:16,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16 WrapperNode [2024-11-12 13:23:16,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 13:23:16,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 13:23:16,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 13:23:16,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 13:23:16,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,263 INFO L138 Inliner]: procedures = 127, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2024-11-12 13:23:16,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 13:23:16,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 13:23:16,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 13:23:16,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 13:23:16,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,296 INFO L175 MemorySlicer]: Split 41 memory accesses to 3 slices as follows [2, 24, 15]. 59 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 15 writes are split as follows [0, 12, 3]. [2024-11-12 13:23:16,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 13:23:16,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 13:23:16,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 13:23:16,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 13:23:16,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (1/1) ... [2024-11-12 13:23:16,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 13:23:16,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:23:16,339 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) [2024-11-12 13:23:16,341 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 [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 13:23:16,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 13:23:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 13:23:16,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 13:23:16,466 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 13:23:16,467 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 13:23:16,818 INFO L? ?]: Removed 204 outVars from TransFormulas that were not future-live. [2024-11-12 13:23:16,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 13:23:16,832 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 13:23:16,833 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-12 13:23:16,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:23:16 BoogieIcfgContainer [2024-11-12 13:23:16,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 13:23:16,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 13:23:16,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 13:23:16,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 13:23:16,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:23:15" (1/3) ... [2024-11-12 13:23:16,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfa5856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:23:16, skipping insertion in model container [2024-11-12 13:23:16,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:23:16" (2/3) ... [2024-11-12 13:23:16,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfa5856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:23:16, skipping insertion in model container [2024-11-12 13:23:16,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:23:16" (3/3) ... [2024-11-12 13:23:16,840 INFO L112 eAbstractionObserver]: Analyzing ICFG skiplist_3lvl.i [2024-11-12 13:23:16,853 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 13:23:16,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2024-11-12 13:23:16,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 13:23:16,903 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;@6875dcbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 13:23:16,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-11-12 13:23:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 85 states have (on average 2.176470588235294) internal successors, (185), 170 states have internal predecessors, (185), 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) [2024-11-12 13:23:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-12 13:23:16,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:16,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-12 13:23:16,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:16,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:16,914 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-12 13:23:16,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:16,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296701099] [2024-11-12 13:23:16,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:17,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296701099] [2024-11-12 13:23:17,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296701099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:17,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:17,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 13:23:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543290487] [2024-11-12 13:23:17,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:17,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 13:23:17,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:17,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 13:23:17,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 13:23:17,150 INFO L87 Difference]: Start difference. First operand has 171 states, 85 states have (on average 2.176470588235294) internal successors, (185), 170 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 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) [2024-11-12 13:23:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:17,315 INFO L93 Difference]: Finished difference Result 162 states and 171 transitions. [2024-11-12 13:23:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 13:23:17,317 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 [2024-11-12 13:23:17,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:17,324 INFO L225 Difference]: With dead ends: 162 [2024-11-12 13:23:17,324 INFO L226 Difference]: Without dead ends: 160 [2024-11-12 13:23:17,325 INFO L434 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 [2024-11-12 13:23:17,329 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 29 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:17,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 212 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-12 13:23:17,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-12 13:23:17,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 84 states have (on average 2.011904761904762) internal successors, (169), 159 states have internal predecessors, (169), 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) [2024-11-12 13:23:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 169 transitions. [2024-11-12 13:23:17,369 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 169 transitions. Word has length 3 [2024-11-12 13:23:17,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:17,369 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 169 transitions. [2024-11-12 13:23:17,369 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) [2024-11-12 13:23:17,370 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 169 transitions. [2024-11-12 13:23:17,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-12 13:23:17,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:17,370 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-12 13:23:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 13:23:17,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:17,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-12 13:23:17,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:17,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139929162] [2024-11-12 13:23:17,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:17,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:17,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:17,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139929162] [2024-11-12 13:23:17,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139929162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:17,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:17,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 13:23:17,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267307329] [2024-11-12 13:23:17,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:17,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 13:23:17,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:17,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 13:23:17,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 13:23:17,477 INFO L87 Difference]: Start difference. First operand 160 states and 169 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) [2024-11-12 13:23:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:17,593 INFO L93 Difference]: Finished difference Result 159 states and 168 transitions. [2024-11-12 13:23:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 13:23:17,594 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 [2024-11-12 13:23:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:17,595 INFO L225 Difference]: With dead ends: 159 [2024-11-12 13:23:17,595 INFO L226 Difference]: Without dead ends: 159 [2024-11-12 13:23:17,595 INFO L434 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 [2024-11-12 13:23:17,596 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 1 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:17,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 251 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-12 13:23:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-12 13:23:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 84 states have (on average 2.0) internal successors, (168), 158 states have internal predecessors, (168), 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) [2024-11-12 13:23:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 168 transitions. [2024-11-12 13:23:17,612 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 168 transitions. Word has length 3 [2024-11-12 13:23:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:17,612 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 168 transitions. [2024-11-12 13:23:17,612 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) [2024-11-12 13:23:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 168 transitions. [2024-11-12 13:23:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 13:23:17,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:17,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 13:23:17,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 13:23:17,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:17,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash 28691811, now seen corresponding path program 1 times [2024-11-12 13:23:17,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:17,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224236205] [2024-11-12 13:23:17,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:17,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224236205] [2024-11-12 13:23:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224236205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:17,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:17,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:23:17,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054121452] [2024-11-12 13:23:17,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:17,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 13:23:17,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 13:23:17,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:23:17,786 INFO L87 Difference]: Start difference. First operand 159 states and 168 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:17,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:17,947 INFO L93 Difference]: Finished difference Result 151 states and 160 transitions. [2024-11-12 13:23:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 13:23:17,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-12 13:23:17,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:17,948 INFO L225 Difference]: With dead ends: 151 [2024-11-12 13:23:17,948 INFO L226 Difference]: Without dead ends: 151 [2024-11-12 13:23:17,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 13:23:17,949 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 28 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:17,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 256 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-12 13:23:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-12 13:23:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 150 states have internal predecessors, (160), 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) [2024-11-12 13:23:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2024-11-12 13:23:17,954 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 5 [2024-11-12 13:23:17,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:17,955 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2024-11-12 13:23:17,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2024-11-12 13:23:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 13:23:17,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:17,955 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:17,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 13:23:17,956 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:17,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:17,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1604937495, now seen corresponding path program 1 times [2024-11-12 13:23:17,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:17,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915418148] [2024-11-12 13:23:17,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:17,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915418148] [2024-11-12 13:23:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915418148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:18,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:18,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360812962] [2024-11-12 13:23:18,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:18,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:18,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:18,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:18,099 INFO L87 Difference]: Start difference. First operand 151 states and 160 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:18,239 INFO L93 Difference]: Finished difference Result 150 states and 159 transitions. [2024-11-12 13:23:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:18,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-12 13:23:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:18,240 INFO L225 Difference]: With dead ends: 150 [2024-11-12 13:23:18,240 INFO L226 Difference]: Without dead ends: 150 [2024-11-12 13:23:18,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:18,241 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 23 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:18,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 365 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-12 13:23:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-12 13:23:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 84 states have (on average 1.8928571428571428) internal successors, (159), 149 states have internal predecessors, (159), 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) [2024-11-12 13:23:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 159 transitions. [2024-11-12 13:23:18,246 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 159 transitions. Word has length 11 [2024-11-12 13:23:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 159 transitions. [2024-11-12 13:23:18,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2024-11-12 13:23:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-12 13:23:18,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:18,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:18,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 13:23:18,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:18,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1604937494, now seen corresponding path program 1 times [2024-11-12 13:23:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:18,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939260467] [2024-11-12 13:23:18,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:18,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:18,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:18,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939260467] [2024-11-12 13:23:18,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939260467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:18,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:18,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:23:18,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108291929] [2024-11-12 13:23:18,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:18,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:23:18,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:18,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:23:18,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:18,484 INFO L87 Difference]: Start difference. First operand 150 states and 159 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:18,705 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2024-11-12 13:23:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:18,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-12 13:23:18,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:18,706 INFO L225 Difference]: With dead ends: 149 [2024-11-12 13:23:18,706 INFO L226 Difference]: Without dead ends: 149 [2024-11-12 13:23:18,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:18,707 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 25 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:18,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 384 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-12 13:23:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-12 13:23:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 84 states have (on average 1.880952380952381) internal successors, (158), 148 states have internal predecessors, (158), 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) [2024-11-12 13:23:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 158 transitions. [2024-11-12 13:23:18,715 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 158 transitions. Word has length 11 [2024-11-12 13:23:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:18,715 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 158 transitions. [2024-11-12 13:23:18,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 158 transitions. [2024-11-12 13:23:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-12 13:23:18,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:18,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:18,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 13:23:18,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:18,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:18,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1786545203, now seen corresponding path program 1 times [2024-11-12 13:23:18,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:18,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374253082] [2024-11-12 13:23:18,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:18,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374253082] [2024-11-12 13:23:18,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374253082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:18,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:18,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:18,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946319013] [2024-11-12 13:23:18,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:18,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:18,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:18,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:18,784 INFO L87 Difference]: Start difference. First operand 149 states and 158 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:18,878 INFO L93 Difference]: Finished difference Result 148 states and 157 transitions. [2024-11-12 13:23:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-12 13:23:18,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:18,880 INFO L225 Difference]: With dead ends: 148 [2024-11-12 13:23:18,883 INFO L226 Difference]: Without dead ends: 148 [2024-11-12 13:23:18,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:18,884 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 3 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:18,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 513 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-12 13:23:18,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-12 13:23:18,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 84 states have (on average 1.869047619047619) internal successors, (157), 147 states have internal predecessors, (157), 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) [2024-11-12 13:23:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2024-11-12 13:23:18,887 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 12 [2024-11-12 13:23:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:18,887 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2024-11-12 13:23:18,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2024-11-12 13:23:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-12 13:23:18,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:18,888 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:18,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 13:23:18,888 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:18,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1786545204, now seen corresponding path program 1 times [2024-11-12 13:23:18,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:18,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674295971] [2024-11-12 13:23:18,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:18,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:19,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:19,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:19,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674295971] [2024-11-12 13:23:19,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674295971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:19,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:19,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 13:23:19,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577021155] [2024-11-12 13:23:19,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:19,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 13:23:19,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 13:23:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 13:23:19,147 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:19,398 INFO L93 Difference]: Finished difference Result 147 states and 156 transitions. [2024-11-12 13:23:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-12 13:23:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:19,400 INFO L225 Difference]: With dead ends: 147 [2024-11-12 13:23:19,400 INFO L226 Difference]: Without dead ends: 147 [2024-11-12 13:23:19,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 13:23:19,401 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 26 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:19,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 462 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-12 13:23:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-12 13:23:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 84 states have (on average 1.8571428571428572) internal successors, (156), 146 states have internal predecessors, (156), 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) [2024-11-12 13:23:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2024-11-12 13:23:19,408 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 12 [2024-11-12 13:23:19,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:19,408 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2024-11-12 13:23:19,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2024-11-12 13:23:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 13:23:19,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:19,409 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:19,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 13:23:19,409 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:19,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:19,410 INFO L85 PathProgramCache]: Analyzing trace with hash -451673556, now seen corresponding path program 1 times [2024-11-12 13:23:19,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:19,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36821384] [2024-11-12 13:23:19,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:19,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:19,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:19,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36821384] [2024-11-12 13:23:19,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36821384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:19,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:19,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:19,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120662993] [2024-11-12 13:23:19,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:19,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:19,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:19,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:19,462 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:19,548 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2024-11-12 13:23:19,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:19,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-12 13:23:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:19,549 INFO L225 Difference]: With dead ends: 146 [2024-11-12 13:23:19,549 INFO L226 Difference]: Without dead ends: 146 [2024-11-12 13:23:19,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:19,550 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 5 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:19,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 502 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:19,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-12 13:23:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-12 13:23:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 84 states have (on average 1.8452380952380953) internal successors, (155), 145 states have internal predecessors, (155), 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) [2024-11-12 13:23:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 155 transitions. [2024-11-12 13:23:19,554 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 155 transitions. Word has length 13 [2024-11-12 13:23:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:19,554 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 155 transitions. [2024-11-12 13:23:19,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 155 transitions. [2024-11-12 13:23:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 13:23:19,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:19,554 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:19,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 13:23:19,555 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:19,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash -451673555, now seen corresponding path program 1 times [2024-11-12 13:23:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:19,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761178965] [2024-11-12 13:23:19,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:19,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:19,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:19,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761178965] [2024-11-12 13:23:19,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761178965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:19,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:19,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 13:23:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783552385] [2024-11-12 13:23:19,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:19,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 13:23:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 13:23:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 13:23:19,864 INFO L87 Difference]: Start difference. First operand 146 states and 155 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:20,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:20,108 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2024-11-12 13:23:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-12 13:23:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:20,111 INFO L225 Difference]: With dead ends: 145 [2024-11-12 13:23:20,112 INFO L226 Difference]: Without dead ends: 145 [2024-11-12 13:23:20,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 13:23:20,112 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 26 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:20,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 462 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-12 13:23:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-12 13:23:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 84 states have (on average 1.8333333333333333) internal successors, (154), 144 states have internal predecessors, (154), 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) [2024-11-12 13:23:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2024-11-12 13:23:20,115 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 13 [2024-11-12 13:23:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:20,115 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2024-11-12 13:23:20,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2024-11-12 13:23:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 13:23:20,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:20,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:20,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 13:23:20,117 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:20,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -598729444, now seen corresponding path program 1 times [2024-11-12 13:23:20,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:20,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358621073] [2024-11-12 13:23:20,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:20,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:20,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:20,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358621073] [2024-11-12 13:23:20,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358621073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:20,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657414403] [2024-11-12 13:23:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:20,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:20,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:20,200 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-12 13:23:20,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:20,329 INFO L93 Difference]: Finished difference Result 144 states and 153 transitions. [2024-11-12 13:23:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-12 13:23:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:20,330 INFO L225 Difference]: With dead ends: 144 [2024-11-12 13:23:20,331 INFO L226 Difference]: Without dead ends: 144 [2024-11-12 13:23:20,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:20,331 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 9 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:20,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 358 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-12 13:23:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-12 13:23:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 84 states have (on average 1.8214285714285714) internal successors, (153), 143 states have internal predecessors, (153), 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) [2024-11-12 13:23:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2024-11-12 13:23:20,335 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 18 [2024-11-12 13:23:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:20,336 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2024-11-12 13:23:20,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-12 13:23:20,336 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2024-11-12 13:23:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 13:23:20,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:20,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:20,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 13:23:20,338 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:20,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:20,338 INFO L85 PathProgramCache]: Analyzing trace with hash -598729443, now seen corresponding path program 1 times [2024-11-12 13:23:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:20,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306725442] [2024-11-12 13:23:20,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:20,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306725442] [2024-11-12 13:23:20,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306725442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:20,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:20,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:20,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398710432] [2024-11-12 13:23:20,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:20,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:20,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:20,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:20,457 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-12 13:23:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:20,596 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2024-11-12 13:23:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-12 13:23:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:20,597 INFO L225 Difference]: With dead ends: 143 [2024-11-12 13:23:20,597 INFO L226 Difference]: Without dead ends: 143 [2024-11-12 13:23:20,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:20,597 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 8 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:20,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 373 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-12 13:23:20,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-12 13:23:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 84 states have (on average 1.8095238095238095) internal successors, (152), 142 states have internal predecessors, (152), 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) [2024-11-12 13:23:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2024-11-12 13:23:20,600 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 18 [2024-11-12 13:23:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:20,600 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2024-11-12 13:23:20,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-12 13:23:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2024-11-12 13:23:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 13:23:20,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:20,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:20,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 13:23:20,601 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:20,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1380743565, now seen corresponding path program 1 times [2024-11-12 13:23:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:20,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429941584] [2024-11-12 13:23:20,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:20,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:20,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:20,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429941584] [2024-11-12 13:23:20,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429941584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:20,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:20,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:20,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394670419] [2024-11-12 13:23:20,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:20,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:20,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:20,679 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:20,799 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2024-11-12 13:23:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-12 13:23:20,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:20,803 INFO L225 Difference]: With dead ends: 142 [2024-11-12 13:23:20,803 INFO L226 Difference]: Without dead ends: 142 [2024-11-12 13:23:20,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:20,804 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 8 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:20,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 355 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-12 13:23:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-12 13:23:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 84 states have (on average 1.7976190476190477) internal successors, (151), 141 states have internal predecessors, (151), 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) [2024-11-12 13:23:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2024-11-12 13:23:20,807 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 19 [2024-11-12 13:23:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:20,808 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2024-11-12 13:23:20,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2024-11-12 13:23:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 13:23:20,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:20,808 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:20,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 13:23:20,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:20,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1380743564, now seen corresponding path program 1 times [2024-11-12 13:23:20,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:20,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871534781] [2024-11-12 13:23:20,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:20,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:20,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871534781] [2024-11-12 13:23:20,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871534781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:20,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:20,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:20,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885185039] [2024-11-12 13:23:20,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:20,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:20,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:20,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:20,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:20,935 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:21,064 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2024-11-12 13:23:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-12 13:23:21,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:21,065 INFO L225 Difference]: With dead ends: 141 [2024-11-12 13:23:21,065 INFO L226 Difference]: Without dead ends: 141 [2024-11-12 13:23:21,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:21,065 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 7 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:21,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 370 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:21,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-12 13:23:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-12 13:23:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 140 states have internal predecessors, (150), 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) [2024-11-12 13:23:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 150 transitions. [2024-11-12 13:23:21,068 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 150 transitions. Word has length 19 [2024-11-12 13:23:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:21,068 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 150 transitions. [2024-11-12 13:23:21,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 150 transitions. [2024-11-12 13:23:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-12 13:23:21,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:21,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:21,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 13:23:21,069 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:21,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:21,069 INFO L85 PathProgramCache]: Analyzing trace with hash 146622463, now seen corresponding path program 1 times [2024-11-12 13:23:21,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:21,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969467343] [2024-11-12 13:23:21,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:21,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:21,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969467343] [2024-11-12 13:23:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969467343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:21,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:21,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432180179] [2024-11-12 13:23:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:21,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:21,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:21,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:21,138 INFO L87 Difference]: Start difference. First operand 141 states and 150 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-12 13:23:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:21,256 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2024-11-12 13:23:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2024-11-12 13:23:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:21,257 INFO L225 Difference]: With dead ends: 140 [2024-11-12 13:23:21,257 INFO L226 Difference]: Without dead ends: 140 [2024-11-12 13:23:21,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:21,258 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 7 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:21,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 352 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-12 13:23:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-11-12 13:23:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.7738095238095237) internal successors, (149), 139 states have internal predecessors, (149), 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) [2024-11-12 13:23:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 149 transitions. [2024-11-12 13:23:21,261 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 149 transitions. Word has length 20 [2024-11-12 13:23:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:21,262 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 149 transitions. [2024-11-12 13:23:21,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-12 13:23:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 149 transitions. [2024-11-12 13:23:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-12 13:23:21,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:21,263 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:23:21,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 13:23:21,263 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:21,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash 146622464, now seen corresponding path program 1 times [2024-11-12 13:23:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:21,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101386498] [2024-11-12 13:23:21,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:21,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:21,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101386498] [2024-11-12 13:23:21,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101386498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:21,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:21,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 13:23:21,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864249273] [2024-11-12 13:23:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:21,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 13:23:21,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 13:23:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 13:23:21,433 INFO L87 Difference]: Start difference. First operand 140 states and 149 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-12 13:23:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:21,564 INFO L93 Difference]: Finished difference Result 139 states and 148 transitions. [2024-11-12 13:23:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 13:23:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2024-11-12 13:23:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:21,565 INFO L225 Difference]: With dead ends: 139 [2024-11-12 13:23:21,565 INFO L226 Difference]: Without dead ends: 139 [2024-11-12 13:23:21,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:21,565 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 6 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:21,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 367 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:21,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-12 13:23:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-12 13:23:21,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.7619047619047619) internal successors, (148), 138 states have internal predecessors, (148), 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) [2024-11-12 13:23:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2024-11-12 13:23:21,571 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 20 [2024-11-12 13:23:21,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:21,571 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2024-11-12 13:23:21,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-12 13:23:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2024-11-12 13:23:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 13:23:21,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:21,572 INFO L218 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] [2024-11-12 13:23:21,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 13:23:21,572 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:21,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:21,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1043484996, now seen corresponding path program 1 times [2024-11-12 13:23:21,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:21,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880685699] [2024-11-12 13:23:21,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:21,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:21,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:21,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880685699] [2024-11-12 13:23:21,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880685699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:21,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:21,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:23:21,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933245587] [2024-11-12 13:23:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:21,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:23:21,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:21,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:23:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:21,663 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-11-12 13:23:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:21,794 INFO L93 Difference]: Finished difference Result 137 states and 146 transitions. [2024-11-12 13:23:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:21,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 [2024-11-12 13:23:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:21,795 INFO L225 Difference]: With dead ends: 137 [2024-11-12 13:23:21,795 INFO L226 Difference]: Without dead ends: 137 [2024-11-12 13:23:21,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:21,795 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 172 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:21,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 267 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:21,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-12 13:23:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-12 13:23:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.7380952380952381) internal successors, (146), 136 states have internal predecessors, (146), 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) [2024-11-12 13:23:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 146 transitions. [2024-11-12 13:23:21,797 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 146 transitions. Word has length 25 [2024-11-12 13:23:21,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:21,798 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 146 transitions. [2024-11-12 13:23:21,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-11-12 13:23:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 146 transitions. [2024-11-12 13:23:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 13:23:21,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:21,799 INFO L218 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] [2024-11-12 13:23:21,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 13:23:21,799 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:21,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1043484995, now seen corresponding path program 1 times [2024-11-12 13:23:21,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:21,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379337305] [2024-11-12 13:23:21,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:21,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379337305] [2024-11-12 13:23:21,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379337305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:21,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 13:23:21,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419385452] [2024-11-12 13:23:21,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:21,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 13:23:21,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 13:23:21,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:21,915 INFO L87 Difference]: Start difference. First operand 137 states and 146 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) [2024-11-12 13:23:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:22,064 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2024-11-12 13:23:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:22,064 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 [2024-11-12 13:23:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:22,064 INFO L225 Difference]: With dead ends: 135 [2024-11-12 13:23:22,064 INFO L226 Difference]: Without dead ends: 135 [2024-11-12 13:23:22,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 13:23:22,065 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 170 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:22,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 371 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-12 13:23:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-12 13:23:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 84 states have (on average 1.7142857142857142) internal successors, (144), 134 states have internal predecessors, (144), 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) [2024-11-12 13:23:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2024-11-12 13:23:22,067 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 25 [2024-11-12 13:23:22,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:22,067 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2024-11-12 13:23:22,068 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) [2024-11-12 13:23:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2024-11-12 13:23:22,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-12 13:23:22,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:22,068 INFO L218 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] [2024-11-12 13:23:22,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 13:23:22,068 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:22,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2011706153, now seen corresponding path program 1 times [2024-11-12 13:23:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:22,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247416241] [2024-11-12 13:23:22,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:22,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247416241] [2024-11-12 13:23:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247416241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:23:22,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737220221] [2024-11-12 13:23:22,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:22,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:23:22,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:22,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:23:22,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:22,128 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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) [2024-11-12 13:23:22,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:22,270 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2024-11-12 13:23:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:22,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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 [2024-11-12 13:23:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:22,271 INFO L225 Difference]: With dead ends: 132 [2024-11-12 13:23:22,271 INFO L226 Difference]: Without dead ends: 132 [2024-11-12 13:23:22,272 INFO L434 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 [2024-11-12 13:23:22,272 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 105 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:22,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 260 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:22,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-12 13:23:22,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-12 13:23:22,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 85 states have (on average 1.6705882352941177) internal successors, (142), 131 states have internal predecessors, (142), 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) [2024-11-12 13:23:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2024-11-12 13:23:22,275 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 26 [2024-11-12 13:23:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:22,275 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2024-11-12 13:23:22,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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) [2024-11-12 13:23:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2024-11-12 13:23:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-12 13:23:22,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:22,275 INFO L218 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] [2024-11-12 13:23:22,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 13:23:22,276 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:22,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:22,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2011706154, now seen corresponding path program 1 times [2024-11-12 13:23:22,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:22,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726840056] [2024-11-12 13:23:22,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:22,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:22,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726840056] [2024-11-12 13:23:22,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726840056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:22,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:22,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 13:23:22,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313543182] [2024-11-12 13:23:22,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:22,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 13:23:22,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 13:23:22,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:22,408 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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) [2024-11-12 13:23:22,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:22,577 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2024-11-12 13:23:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:22,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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 [2024-11-12 13:23:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:22,578 INFO L225 Difference]: With dead ends: 127 [2024-11-12 13:23:22,578 INFO L226 Difference]: Without dead ends: 127 [2024-11-12 13:23:22,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 13:23:22,579 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 103 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:22,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 342 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:22,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-12 13:23:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-12 13:23:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 85 states have (on average 1.6) internal successors, (136), 126 states have internal predecessors, (136), 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) [2024-11-12 13:23:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 136 transitions. [2024-11-12 13:23:22,582 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 136 transitions. Word has length 26 [2024-11-12 13:23:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:22,582 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 136 transitions. [2024-11-12 13:23:22,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 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) [2024-11-12 13:23:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 136 transitions. [2024-11-12 13:23:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-12 13:23:22,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:22,583 INFO L218 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] [2024-11-12 13:23:22,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 13:23:22,583 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:22,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2061699999, now seen corresponding path program 1 times [2024-11-12 13:23:22,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:22,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797146444] [2024-11-12 13:23:22,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:22,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:22,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:22,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797146444] [2024-11-12 13:23:22,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797146444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:22,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:22,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 13:23:22,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051108855] [2024-11-12 13:23:22,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:22,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 13:23:22,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:22,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 13:23:22,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-12 13:23:22,702 INFO L87 Difference]: Start difference. First operand 127 states and 136 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:22,920 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2024-11-12 13:23:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 13:23:22,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-12 13:23:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:22,921 INFO L225 Difference]: With dead ends: 125 [2024-11-12 13:23:22,921 INFO L226 Difference]: Without dead ends: 125 [2024-11-12 13:23:22,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-12 13:23:22,921 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 234 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:22,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 364 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-12 13:23:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2024-11-12 13:23:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 86 states have (on average 1.558139534883721) internal successors, (134), 123 states have internal predecessors, (134), 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) [2024-11-12 13:23:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2024-11-12 13:23:22,923 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 27 [2024-11-12 13:23:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:22,923 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2024-11-12 13:23:22,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2024-11-12 13:23:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-12 13:23:22,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:22,924 INFO L218 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] [2024-11-12 13:23:22,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 13:23:22,924 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:22,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:22,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2061699998, now seen corresponding path program 1 times [2024-11-12 13:23:22,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:22,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56437215] [2024-11-12 13:23:22,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:22,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:23,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:23,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:23,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56437215] [2024-11-12 13:23:23,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56437215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:23,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:23,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 13:23:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215959092] [2024-11-12 13:23:23,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:23,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 13:23:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 13:23:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-12 13:23:23,201 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:23,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:23,486 INFO L93 Difference]: Finished difference Result 187 states and 204 transitions. [2024-11-12 13:23:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 13:23:23,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-12 13:23:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:23,488 INFO L225 Difference]: With dead ends: 187 [2024-11-12 13:23:23,488 INFO L226 Difference]: Without dead ends: 187 [2024-11-12 13:23:23,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-12 13:23:23,489 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 375 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:23,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 444 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-12 13:23:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 162. [2024-11-12 13:23:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 124 states have (on average 1.6370967741935485) internal successors, (203), 161 states have internal predecessors, (203), 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) [2024-11-12 13:23:23,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2024-11-12 13:23:23,496 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 27 [2024-11-12 13:23:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:23,496 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2024-11-12 13:23:23,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:23,496 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2024-11-12 13:23:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-12 13:23:23,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:23,496 INFO L218 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] [2024-11-12 13:23:23,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 13:23:23,497 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:23,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:23,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1235458799, now seen corresponding path program 1 times [2024-11-12 13:23:23,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:23,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127734448] [2024-11-12 13:23:23,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:23,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:23,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:23,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127734448] [2024-11-12 13:23:23,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127734448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:23,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:23,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:23:23,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947350038] [2024-11-12 13:23:23,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:23,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:23:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:23:23,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:23,572 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2024-11-12 13:23:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:23,622 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2024-11-12 13:23:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 13:23:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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 [2024-11-12 13:23:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:23,623 INFO L225 Difference]: With dead ends: 161 [2024-11-12 13:23:23,623 INFO L226 Difference]: Without dead ends: 161 [2024-11-12 13:23:23,623 INFO L434 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 [2024-11-12 13:23:23,623 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 98 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:23,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 419 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 13:23:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-12 13:23:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-12 13:23:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.6290322580645162) internal successors, (202), 160 states have internal predecessors, (202), 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) [2024-11-12 13:23:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2024-11-12 13:23:23,626 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 202 transitions. Word has length 29 [2024-11-12 13:23:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:23,626 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 202 transitions. [2024-11-12 13:23:23,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2024-11-12 13:23:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 202 transitions. [2024-11-12 13:23:23,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 13:23:23,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:23,627 INFO L218 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] [2024-11-12 13:23:23,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 13:23:23,627 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:23,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:23,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1863814087, now seen corresponding path program 1 times [2024-11-12 13:23:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:23,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822123370] [2024-11-12 13:23:23,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:23,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:23,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:23,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822123370] [2024-11-12 13:23:23,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822123370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:23,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:23,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 13:23:23,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916575132] [2024-11-12 13:23:23,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:23,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 13:23:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:23,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 13:23:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 13:23:23,741 INFO L87 Difference]: Start difference. First operand 161 states and 202 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:23,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:23,919 INFO L93 Difference]: Finished difference Result 169 states and 211 transitions. [2024-11-12 13:23:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 13:23:23,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-12 13:23:23,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:23,920 INFO L225 Difference]: With dead ends: 169 [2024-11-12 13:23:23,920 INFO L226 Difference]: Without dead ends: 169 [2024-11-12 13:23:23,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-12 13:23:23,920 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 85 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:23,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 401 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:23,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-12 13:23:23,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2024-11-12 13:23:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 129 states have (on average 1.62015503875969) internal successors, (209), 165 states have internal predecessors, (209), 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) [2024-11-12 13:23:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2024-11-12 13:23:23,923 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 31 [2024-11-12 13:23:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:23,923 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2024-11-12 13:23:23,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2024-11-12 13:23:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 13:23:23,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:23,924 INFO L218 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] [2024-11-12 13:23:23,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 13:23:23,924 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:23,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:23,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1863814086, now seen corresponding path program 1 times [2024-11-12 13:23:23,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:23,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753759547] [2024-11-12 13:23:23,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:23,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:24,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:24,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753759547] [2024-11-12 13:23:24,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753759547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:24,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:24,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 13:23:24,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509246774] [2024-11-12 13:23:24,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:24,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 13:23:24,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:24,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 13:23:24,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-12 13:23:24,183 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:24,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:24,455 INFO L93 Difference]: Finished difference Result 168 states and 210 transitions. [2024-11-12 13:23:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 13:23:24,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-12 13:23:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:24,456 INFO L225 Difference]: With dead ends: 168 [2024-11-12 13:23:24,456 INFO L226 Difference]: Without dead ends: 168 [2024-11-12 13:23:24,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-12 13:23:24,457 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 89 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:24,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 592 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-12 13:23:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2024-11-12 13:23:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 129 states have (on average 1.6124031007751938) internal successors, (208), 165 states have internal predecessors, (208), 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) [2024-11-12 13:23:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 208 transitions. [2024-11-12 13:23:24,460 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 208 transitions. Word has length 31 [2024-11-12 13:23:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:24,460 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 208 transitions. [2024-11-12 13:23:24,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 208 transitions. [2024-11-12 13:23:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-12 13:23:24,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:24,460 INFO L218 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] [2024-11-12 13:23:24,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 13:23:24,461 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1978046457, now seen corresponding path program 1 times [2024-11-12 13:23:24,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684178524] [2024-11-12 13:23:24,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:24,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684178524] [2024-11-12 13:23:24,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684178524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:24,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:24,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 13:23:24,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133922987] [2024-11-12 13:23:24,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:24,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 13:23:24,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:24,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 13:23:24,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 13:23:24,590 INFO L87 Difference]: Start difference. First operand 166 states and 208 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:24,654 INFO L93 Difference]: Finished difference Result 167 states and 208 transitions. [2024-11-12 13:23:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 13:23:24,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-12 13:23:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:24,655 INFO L225 Difference]: With dead ends: 167 [2024-11-12 13:23:24,655 INFO L226 Difference]: Without dead ends: 167 [2024-11-12 13:23:24,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-12 13:23:24,656 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 88 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:24,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 669 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:24,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-12 13:23:24,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2024-11-12 13:23:24,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 129 states have (on average 1.6046511627906976) internal successors, (207), 165 states have internal predecessors, (207), 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) [2024-11-12 13:23:24,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 207 transitions. [2024-11-12 13:23:24,659 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 207 transitions. Word has length 32 [2024-11-12 13:23:24,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:24,659 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 207 transitions. [2024-11-12 13:23:24,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 207 transitions. [2024-11-12 13:23:24,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-12 13:23:24,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:24,660 INFO L218 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] [2024-11-12 13:23:24,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 13:23:24,660 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:24,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 190378255, now seen corresponding path program 1 times [2024-11-12 13:23:24,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:24,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721224908] [2024-11-12 13:23:24,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:24,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:24,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:24,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721224908] [2024-11-12 13:23:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721224908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:24,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 13:23:24,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650221227] [2024-11-12 13:23:24,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:24,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 13:23:24,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 13:23:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-12 13:23:24,825 INFO L87 Difference]: Start difference. First operand 166 states and 207 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:25,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:25,075 INFO L93 Difference]: Finished difference Result 166 states and 205 transitions. [2024-11-12 13:23:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 13:23:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-12 13:23:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:25,080 INFO L225 Difference]: With dead ends: 166 [2024-11-12 13:23:25,080 INFO L226 Difference]: Without dead ends: 166 [2024-11-12 13:23:25,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-12 13:23:25,081 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 262 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:25,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 359 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-12 13:23:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-11-12 13:23:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 131 states have (on average 1.549618320610687) internal successors, (203), 163 states have internal predecessors, (203), 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) [2024-11-12 13:23:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 203 transitions. [2024-11-12 13:23:25,086 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 203 transitions. Word has length 33 [2024-11-12 13:23:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:25,086 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 203 transitions. [2024-11-12 13:23:25,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 203 transitions. [2024-11-12 13:23:25,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-12 13:23:25,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:25,087 INFO L218 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] [2024-11-12 13:23:25,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 13:23:25,087 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:25,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:25,087 INFO L85 PathProgramCache]: Analyzing trace with hash 190378256, now seen corresponding path program 1 times [2024-11-12 13:23:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:25,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287975285] [2024-11-12 13:23:25,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:25,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287975285] [2024-11-12 13:23:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287975285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:25,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:25,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 13:23:25,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127468469] [2024-11-12 13:23:25,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:25,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 13:23:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:25,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 13:23:25,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-12 13:23:25,390 INFO L87 Difference]: Start difference. First operand 164 states and 203 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:25,791 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions. [2024-11-12 13:23:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 13:23:25,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-12 13:23:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:25,793 INFO L225 Difference]: With dead ends: 222 [2024-11-12 13:23:25,793 INFO L226 Difference]: Without dead ends: 222 [2024-11-12 13:23:25,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-12 13:23:25,793 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 513 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:25,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 691 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 13:23:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-12 13:23:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 188. [2024-11-12 13:23:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 155 states have (on average 1.5677419354838709) internal successors, (243), 187 states have internal predecessors, (243), 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) [2024-11-12 13:23:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 243 transitions. [2024-11-12 13:23:25,796 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 243 transitions. Word has length 33 [2024-11-12 13:23:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:25,797 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 243 transitions. [2024-11-12 13:23:25,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 243 transitions. [2024-11-12 13:23:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 13:23:25,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:25,797 INFO L218 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] [2024-11-12 13:23:25,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 13:23:25,797 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:25,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:25,798 INFO L85 PathProgramCache]: Analyzing trace with hash 451934574, now seen corresponding path program 1 times [2024-11-12 13:23:25,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:25,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-12 13:23:25,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:25,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:25,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229544435] [2024-11-12 13:23:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229544435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 13:23:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082165365] [2024-11-12 13:23:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:25,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 13:23:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:25,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 13:23:25,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-12 13:23:25,932 INFO L87 Difference]: Start difference. First operand 188 states and 243 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:26,010 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2024-11-12 13:23:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 13:23:26,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-12 13:23:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:26,011 INFO L225 Difference]: With dead ends: 191 [2024-11-12 13:23:26,011 INFO L226 Difference]: Without dead ends: 191 [2024-11-12 13:23:26,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-12 13:23:26,012 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 82 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:26,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 744 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-12 13:23:26,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-11-12 13:23:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.5569620253164558) internal successors, (246), 190 states have internal predecessors, (246), 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) [2024-11-12 13:23:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 246 transitions. [2024-11-12 13:23:26,016 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 246 transitions. Word has length 34 [2024-11-12 13:23:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:26,016 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 246 transitions. [2024-11-12 13:23:26,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 246 transitions. [2024-11-12 13:23:26,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 13:23:26,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:26,017 INFO L218 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] [2024-11-12 13:23:26,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 13:23:26,017 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:26,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1606811227, now seen corresponding path program 1 times [2024-11-12 13:23:26,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644114662] [2024-11-12 13:23:26,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:26,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:26,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644114662] [2024-11-12 13:23:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644114662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:23:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110882175] [2024-11-12 13:23:26,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:26,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:23:26,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:23:26,991 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) [2024-11-12 13:23:26,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 13:23:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:27,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-12 13:23:27,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:23:27,162 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 11 treesize of output 5 [2024-11-12 13:23:27,172 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 [2024-11-12 13:23:27,201 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 15 treesize of output 1 [2024-11-12 13:23:27,232 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-12 13:23:27,232 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 15 treesize of output 15 [2024-11-12 13:23:27,260 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 19 treesize of output 1 [2024-11-12 13:23:27,262 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 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-12 13:23:27,408 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 31 treesize of output 23 [2024-11-12 13:23:27,414 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 31 treesize of output 23 [2024-11-12 13:23:27,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2024-11-12 13:23:27,882 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 41 treesize of output 13 [2024-11-12 13:23:27,888 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 41 treesize of output 13 [2024-11-12 13:23:27,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 11 [2024-11-12 13:23:27,933 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 19 treesize of output 7 [2024-11-12 13:23:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:27,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 13:23:27,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110882175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:27,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 13:23:27,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [24] total 43 [2024-11-12 13:23:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441161502] [2024-11-12 13:23:27,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:27,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 13:23:27,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:27,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 13:23:27,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1672, Unknown=0, NotChecked=0, Total=1806 [2024-11-12 13:23:27,988 INFO L87 Difference]: Start difference. First operand 191 states and 246 transitions. Second operand has 20 states, 20 states have (on average 1.7) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:28,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:28,723 INFO L93 Difference]: Finished difference Result 251 states and 323 transitions. [2024-11-12 13:23:28,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 13:23:28,724 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.7) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-12 13:23:28,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:28,725 INFO L225 Difference]: With dead ends: 251 [2024-11-12 13:23:28,725 INFO L226 Difference]: Without dead ends: 251 [2024-11-12 13:23:28,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=234, Invalid=2958, Unknown=0, NotChecked=0, Total=3192 [2024-11-12 13:23:28,726 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 99 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:28,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1289 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 13:23:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-12 13:23:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 201. [2024-11-12 13:23:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 168 states have (on average 1.5297619047619047) internal successors, (257), 200 states have internal predecessors, (257), 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) [2024-11-12 13:23:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 257 transitions. [2024-11-12 13:23:28,730 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 257 transitions. Word has length 34 [2024-11-12 13:23:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:28,730 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 257 transitions. [2024-11-12 13:23:28,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.7) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 257 transitions. [2024-11-12 13:23:28,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-12 13:23:28,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:28,731 INFO L218 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] [2024-11-12 13:23:28,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 13:23:28,931 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,SelfDestructingSolverStorable28 [2024-11-12 13:23:28,932 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:28,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1125070172, now seen corresponding path program 1 times [2024-11-12 13:23:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:28,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048504375] [2024-11-12 13:23:28,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:28,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:29,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:29,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048504375] [2024-11-12 13:23:29,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048504375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:29,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:29,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 13:23:29,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564402841] [2024-11-12 13:23:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:29,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 13:23:29,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 13:23:29,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-12 13:23:29,105 INFO L87 Difference]: Start difference. First operand 201 states and 257 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 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) [2024-11-12 13:23:29,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:29,209 INFO L93 Difference]: Finished difference Result 202 states and 258 transitions. [2024-11-12 13:23:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 13:23:29,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 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 [2024-11-12 13:23:29,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:29,210 INFO L225 Difference]: With dead ends: 202 [2024-11-12 13:23:29,211 INFO L226 Difference]: Without dead ends: 202 [2024-11-12 13:23:29,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-12 13:23:29,211 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 83 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:29,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 693 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:29,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-12 13:23:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2024-11-12 13:23:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 169 states have (on average 1.5266272189349113) internal successors, (258), 201 states have internal predecessors, (258), 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) [2024-11-12 13:23:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 258 transitions. [2024-11-12 13:23:29,214 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 258 transitions. Word has length 35 [2024-11-12 13:23:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:29,214 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 258 transitions. [2024-11-12 13:23:29,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 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) [2024-11-12 13:23:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 258 transitions. [2024-11-12 13:23:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-12 13:23:29,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:29,215 INFO L218 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] [2024-11-12 13:23:29,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 13:23:29,215 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:29,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash 517437232, now seen corresponding path program 1 times [2024-11-12 13:23:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:29,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416029174] [2024-11-12 13:23:29,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:29,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:29,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:29,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416029174] [2024-11-12 13:23:29,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416029174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:29,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:29,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 13:23:29,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990463251] [2024-11-12 13:23:29,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:29,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 13:23:29,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:29,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 13:23:29,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 13:23:29,270 INFO L87 Difference]: Start difference. First operand 202 states and 258 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-11-12 13:23:29,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:29,353 INFO L93 Difference]: Finished difference Result 201 states and 257 transitions. [2024-11-12 13:23:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 13:23:29,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2024-11-12 13:23:29,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:29,354 INFO L225 Difference]: With dead ends: 201 [2024-11-12 13:23:29,354 INFO L226 Difference]: Without dead ends: 201 [2024-11-12 13:23:29,354 INFO L434 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 [2024-11-12 13:23:29,355 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 5 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:29,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 482 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 13:23:29,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-12 13:23:29,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-12 13:23:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 169 states have (on average 1.5207100591715976) internal successors, (257), 200 states have internal predecessors, (257), 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) [2024-11-12 13:23:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 257 transitions. [2024-11-12 13:23:29,357 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 257 transitions. Word has length 36 [2024-11-12 13:23:29,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:29,358 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 257 transitions. [2024-11-12 13:23:29,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-11-12 13:23:29,358 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 257 transitions. [2024-11-12 13:23:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-12 13:23:29,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:29,358 INFO L218 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] [2024-11-12 13:23:29,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-12 13:23:29,358 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:29,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:29,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1139314749, now seen corresponding path program 1 times [2024-11-12 13:23:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503828915] [2024-11-12 13:23:29,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:29,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:29,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503828915] [2024-11-12 13:23:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503828915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:23:29,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528284398] [2024-11-12 13:23:29,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:29,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:23:29,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:23:29,560 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) [2024-11-12 13:23:29,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 13:23:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:29,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-12 13:23:29,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:23:29,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-12 13:23:29,697 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 [2024-11-12 13:23:29,701 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 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-12 13:23:29,758 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 [2024-11-12 13:23:29,777 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 [2024-11-12 13:23:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:29,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:23:29,821 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 6 treesize of output 4 [2024-11-12 13:23:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528284398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:23:29,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:23:29,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 13 [2024-11-12 13:23:29,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781044464] [2024-11-12 13:23:29,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:23:29,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 13:23:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 13:23:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-12 13:23:29,848 INFO L87 Difference]: Start difference. First operand 201 states and 257 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:30,055 INFO L93 Difference]: Finished difference Result 203 states and 259 transitions. [2024-11-12 13:23:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 13:23:30,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-12 13:23:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:30,056 INFO L225 Difference]: With dead ends: 203 [2024-11-12 13:23:30,056 INFO L226 Difference]: Without dead ends: 203 [2024-11-12 13:23:30,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-12 13:23:30,056 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 102 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:30,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 410 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-12 13:23:30,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-12 13:23:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 171 states have (on average 1.5146198830409356) internal successors, (259), 202 states have internal predecessors, (259), 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) [2024-11-12 13:23:30,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 259 transitions. [2024-11-12 13:23:30,061 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 259 transitions. Word has length 37 [2024-11-12 13:23:30,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:30,061 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 259 transitions. [2024-11-12 13:23:30,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:30,061 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 259 transitions. [2024-11-12 13:23:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-12 13:23:30,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:30,061 INFO L218 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, 1] [2024-11-12 13:23:30,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 13:23:30,266 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,SelfDestructingSolverStorable31 [2024-11-12 13:23:30,266 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:30,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1839085945, now seen corresponding path program 1 times [2024-11-12 13:23:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:30,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157947013] [2024-11-12 13:23:30,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:30,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:30,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:30,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157947013] [2024-11-12 13:23:30,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157947013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:30,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:30,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-12 13:23:30,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349002880] [2024-11-12 13:23:30,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:30,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 13:23:30,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 13:23:30,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-12 13:23:30,405 INFO L87 Difference]: Start difference. First operand 203 states and 259 transitions. Second operand has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 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) [2024-11-12 13:23:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:30,708 INFO L93 Difference]: Finished difference Result 205 states and 258 transitions. [2024-11-12 13:23:30,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 13:23:30,709 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 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 39 [2024-11-12 13:23:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:30,709 INFO L225 Difference]: With dead ends: 205 [2024-11-12 13:23:30,710 INFO L226 Difference]: Without dead ends: 205 [2024-11-12 13:23:30,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-12 13:23:30,710 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 263 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:30,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 382 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 13:23:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-12 13:23:30,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2024-11-12 13:23:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 174 states have (on average 1.471264367816092) internal successors, (256), 202 states have internal predecessors, (256), 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) [2024-11-12 13:23:30,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 256 transitions. [2024-11-12 13:23:30,713 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 256 transitions. Word has length 39 [2024-11-12 13:23:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:30,713 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 256 transitions. [2024-11-12 13:23:30,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.9) internal successors, (39), 11 states have internal predecessors, (39), 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) [2024-11-12 13:23:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 256 transitions. [2024-11-12 13:23:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-12 13:23:30,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:30,714 INFO L218 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, 1] [2024-11-12 13:23:30,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-12 13:23:30,714 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:30,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1839085946, now seen corresponding path program 1 times [2024-11-12 13:23:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:30,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482812487] [2024-11-12 13:23:30,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:30,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:31,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:31,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482812487] [2024-11-12 13:23:31,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482812487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:31,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:31,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-12 13:23:31,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803716726] [2024-11-12 13:23:31,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:31,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 13:23:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:31,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 13:23:31,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-12 13:23:31,027 INFO L87 Difference]: Start difference. First operand 203 states and 256 transitions. Second operand has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-12 13:23:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:31,408 INFO L93 Difference]: Finished difference Result 243 states and 271 transitions. [2024-11-12 13:23:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 13:23:31,408 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 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 39 [2024-11-12 13:23:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:31,409 INFO L225 Difference]: With dead ends: 243 [2024-11-12 13:23:31,409 INFO L226 Difference]: Without dead ends: 243 [2024-11-12 13:23:31,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-12 13:23:31,410 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 549 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:31,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 592 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 13:23:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-12 13:23:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 213. [2024-11-12 13:23:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 184 states have (on average 1.4619565217391304) internal successors, (269), 212 states have internal predecessors, (269), 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) [2024-11-12 13:23:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 269 transitions. [2024-11-12 13:23:31,413 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 269 transitions. Word has length 39 [2024-11-12 13:23:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:31,413 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 269 transitions. [2024-11-12 13:23:31,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-12 13:23:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 269 transitions. [2024-11-12 13:23:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 13:23:31,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:31,413 INFO L218 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, 1, 1] [2024-11-12 13:23:31,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-12 13:23:31,414 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:31,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1177142095, now seen corresponding path program 1 times [2024-11-12 13:23:31,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:31,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222605822] [2024-11-12 13:23:31,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:31,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:31,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222605822] [2024-11-12 13:23:31,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222605822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:31,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 13:23:31,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 13:23:31,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789256920] [2024-11-12 13:23:31,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:31,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 13:23:31,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 13:23:31,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 13:23:31,441 INFO L87 Difference]: Start difference. First operand 213 states and 269 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:31,447 INFO L93 Difference]: Finished difference Result 216 states and 272 transitions. [2024-11-12 13:23:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 13:23:31,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-12 13:23:31,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:31,448 INFO L225 Difference]: With dead ends: 216 [2024-11-12 13:23:31,448 INFO L226 Difference]: Without dead ends: 216 [2024-11-12 13:23:31,448 INFO L434 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 [2024-11-12 13:23:31,448 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:31,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 13:23:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-12 13:23:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-12 13:23:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 187 states have (on average 1.4545454545454546) internal successors, (272), 215 states have internal predecessors, (272), 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) [2024-11-12 13:23:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 272 transitions. [2024-11-12 13:23:31,451 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 272 transitions. Word has length 40 [2024-11-12 13:23:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:31,451 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 272 transitions. [2024-11-12 13:23:31,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:31,451 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 272 transitions. [2024-11-12 13:23:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 13:23:31,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:31,452 INFO L218 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, 1, 1] [2024-11-12 13:23:31,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-12 13:23:31,452 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:31,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1175295053, now seen corresponding path program 1 times [2024-11-12 13:23:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335028590] [2024-11-12 13:23:31,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:31,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:32,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:32,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335028590] [2024-11-12 13:23:32,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335028590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:23:32,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558561828] [2024-11-12 13:23:32,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:32,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:23:32,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:23:32,610 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) [2024-11-12 13:23:32,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 13:23:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:32,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-12 13:23:32,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:23:32,764 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 11 treesize of output 5 [2024-11-12 13:23:32,769 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 [2024-11-12 13:23:32,796 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 15 treesize of output 1 [2024-11-12 13:23:32,825 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-12 13:23:32,825 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 15 treesize of output 15 [2024-11-12 13:23:32,861 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 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-12 13:23:32,870 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 19 treesize of output 1 [2024-11-12 13:23:33,024 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 25 treesize of output 17 [2024-11-12 13:23:33,033 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 25 treesize of output 17 [2024-11-12 13:23:33,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:33,078 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 0 case distinctions, treesize of input 59 treesize of output 40 [2024-11-12 13:23:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:33,083 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 51 treesize of output 46 [2024-11-12 13:23:33,390 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 63 treesize of output 40 [2024-11-12 13:23:33,396 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 63 treesize of output 40 [2024-11-12 13:23:33,416 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 63 treesize of output 40 [2024-11-12 13:23:33,421 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 63 treesize of output 40 [2024-11-12 13:23:33,441 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 63 treesize of output 40 [2024-11-12 13:23:33,445 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 63 treesize of output 40 [2024-11-12 13:23:33,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 67 [2024-11-12 13:23:33,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:23:33,924 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 71 treesize of output 37 [2024-11-12 13:23:34,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:34,387 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-12 13:23:34,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 17 [2024-11-12 13:23:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:34,398 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-12 13:23:34,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 13 [2024-11-12 13:23:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:34,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 13:23:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558561828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 13:23:34,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 13:23:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [27] total 53 [2024-11-12 13:23:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790750108] [2024-11-12 13:23:34,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 13:23:34,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 13:23:34,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:34,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 13:23:34,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2590, Unknown=0, NotChecked=0, Total=2756 [2024-11-12 13:23:34,478 INFO L87 Difference]: Start difference. First operand 216 states and 272 transitions. Second operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:36,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:36,376 INFO L93 Difference]: Finished difference Result 250 states and 312 transitions. [2024-11-12 13:23:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-12 13:23:36,380 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-12 13:23:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:36,381 INFO L225 Difference]: With dead ends: 250 [2024-11-12 13:23:36,381 INFO L226 Difference]: Without dead ends: 250 [2024-11-12 13:23:36,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=351, Invalid=5199, Unknown=0, NotChecked=0, Total=5550 [2024-11-12 13:23:36,383 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 153 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:36,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1034 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 13:23:36,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-12 13:23:36,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 222. [2024-11-12 13:23:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 193 states have (on average 1.4404145077720207) internal successors, (278), 221 states have internal predecessors, (278), 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) [2024-11-12 13:23:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2024-11-12 13:23:36,387 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 40 [2024-11-12 13:23:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:36,387 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2024-11-12 13:23:36,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 13:23:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2024-11-12 13:23:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-12 13:23:36,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:36,387 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-12 13:23:36,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 13:23:36,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:23:36,588 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:36,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:36,589 INFO L85 PathProgramCache]: Analyzing trace with hash -72808481, now seen corresponding path program 1 times [2024-11-12 13:23:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:36,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717327758] [2024-11-12 13:23:36,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:37,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:23:37,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717327758] [2024-11-12 13:23:37,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717327758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:23:37,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119447947] [2024-11-12 13:23:37,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:37,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:23:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:23:37,606 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) [2024-11-12 13:23:37,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 13:23:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:23:37,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-12 13:23:37,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:23:37,765 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 11 treesize of output 5 [2024-11-12 13:23:37,770 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 [2024-11-12 13:23:37,783 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 [2024-11-12 13:23:37,785 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 15 treesize of output 1 [2024-11-12 13:23:37,791 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-12 13:23:37,791 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 15 treesize of output 15 [2024-11-12 13:23:37,823 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 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-12 13:23:37,826 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 34 treesize of output 18 [2024-11-12 13:23:38,050 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 19 treesize of output 11 [2024-11-12 13:23:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:38,114 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 33 treesize of output 28 [2024-11-12 13:23:38,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:38,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:38,193 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-11-12 13:23:38,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 50 [2024-11-12 13:23:42,482 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 84 treesize of output 43 [2024-11-12 13:23:42,508 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 84 treesize of output 43 [2024-11-12 13:23:42,524 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 84 treesize of output 43 [2024-11-12 13:23:43,042 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 7 treesize of output 3 [2024-11-12 13:23:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:43,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:23:43,120 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-12 13:23:43,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 19 [2024-11-12 13:23:43,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:23:43,175 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29 [2024-11-12 13:23:43,262 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 20 treesize of output 15 [2024-11-12 13:23:43,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:23:43,306 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 32 treesize of output 12 [2024-11-12 13:23:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:43,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:23:43,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:23:43,730 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 43 treesize of output 47 [2024-11-12 13:23:44,394 INFO L349 Elim1Store]: treesize reduction 99, result has 22.7 percent of original size [2024-11-12 13:23:44,394 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 3 case distinctions, treesize of input 87 treesize of output 54 [2024-11-12 13:23:44,423 INFO L349 Elim1Store]: treesize reduction 39, result has 56.2 percent of original size [2024-11-12 13:23:44,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 85 treesize of output 110 [2024-11-12 13:23:44,428 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 48 treesize of output 46 [2024-11-12 13:23:44,498 INFO L349 Elim1Store]: treesize reduction 99, result has 22.7 percent of original size [2024-11-12 13:23:44,498 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 3 case distinctions, treesize of input 88 treesize of output 55 [2024-11-12 13:23:44,500 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 13:23:44,520 INFO L349 Elim1Store]: treesize reduction 85, result has 4.5 percent of original size [2024-11-12 13:23:44,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 26 [2024-11-12 13:23:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:23:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119447947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:23:44,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:23:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27, 27] total 74 [2024-11-12 13:23:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371770010] [2024-11-12 13:23:44,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:23:44,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-12 13:23:44,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:23:44,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-12 13:23:44,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=5218, Unknown=21, NotChecked=0, Total=5550 [2024-11-12 13:23:44,874 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 75 states, 74 states have (on average 1.527027027027027) internal successors, (113), 75 states have internal predecessors, (113), 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) [2024-11-12 13:23:58,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:23:58,782 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2024-11-12 13:23:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-12 13:23:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 1.527027027027027) internal successors, (113), 75 states have internal predecessors, (113), 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 42 [2024-11-12 13:23:58,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:23:58,784 INFO L225 Difference]: With dead ends: 270 [2024-11-12 13:23:58,784 INFO L226 Difference]: Without dead ends: 270 [2024-11-12 13:23:58,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=546, Invalid=7440, Unknown=24, NotChecked=0, Total=8010 [2024-11-12 13:23:58,786 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 110 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 13:23:58,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2689 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 13:23:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-12 13:23:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 240. [2024-11-12 13:23:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.4123222748815165) internal successors, (298), 239 states have internal predecessors, (298), 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) [2024-11-12 13:23:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 298 transitions. [2024-11-12 13:23:58,789 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 298 transitions. Word has length 42 [2024-11-12 13:23:58,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:23:58,789 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 298 transitions. [2024-11-12 13:23:58,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 1.527027027027027) internal successors, (113), 75 states have internal predecessors, (113), 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) [2024-11-12 13:23:58,789 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 298 transitions. [2024-11-12 13:23:58,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-12 13:23:58,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:23:58,790 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-12 13:23:58,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 13:23:58,993 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,SelfDestructingSolverStorable36 [2024-11-12 13:23:58,994 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:23:58,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:23:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash -72808480, now seen corresponding path program 1 times [2024-11-12 13:23:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:23:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662710906] [2024-11-12 13:23:58,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:23:58,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:23:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:00,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:24:00,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662710906] [2024-11-12 13:24:00,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662710906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:24:00,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236904565] [2024-11-12 13:24:00,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:24:00,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:24:00,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:24:00,048 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) [2024-11-12 13:24:00,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 13:24:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:00,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-12 13:24:00,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:24:00,204 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 11 treesize of output 5 [2024-11-12 13:24:00,208 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 [2024-11-12 13:24:00,214 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 [2024-11-12 13:24:00,217 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 15 treesize of output 1 [2024-11-12 13:24:00,222 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 [2024-11-12 13:24:00,230 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-12 13:24:00,230 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 15 treesize of output 15 [2024-11-12 13:24:00,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-12 13:24:00,278 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 34 treesize of output 18 [2024-11-12 13:24:00,545 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 19 treesize of output 11 [2024-11-12 13:24:00,550 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 19 treesize of output 11 [2024-11-12 13:24:00,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:00,612 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 33 treesize of output 28 [2024-11-12 13:24:00,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:00,616 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 43 treesize of output 15 [2024-11-12 13:24:00,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:00,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:00,703 INFO L349 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2024-11-12 13:24:00,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 62 [2024-11-12 13:24:00,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:00,707 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 33 treesize of output 28 [2024-11-12 13:24:01,085 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 76 treesize of output 47 [2024-11-12 13:24:01,093 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 45 treesize of output 22 [2024-11-12 13:24:01,116 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 45 treesize of output 22 [2024-11-12 13:24:01,123 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 76 treesize of output 47 [2024-11-12 13:24:01,165 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 45 treesize of output 22 [2024-11-12 13:24:01,170 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 76 treesize of output 47 [2024-11-12 13:24:01,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:01,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:01,837 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2024-11-12 13:24:01,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 31 [2024-11-12 13:24:01,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:01,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2024-11-12 13:24:01,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:24:01,903 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 26 [2024-11-12 13:24:01,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2024-11-12 13:24:02,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2024-11-12 13:24:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:02,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:24:03,419 INFO L349 Elim1Store]: treesize reduction 75, result has 41.4 percent of original size [2024-11-12 13:24:03,419 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 3 case distinctions, treesize of input 82 treesize of output 73 [2024-11-12 13:24:03,470 INFO L349 Elim1Store]: treesize reduction 13, result has 85.4 percent of original size [2024-11-12 13:24:03,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 102 treesize of output 153 [2024-11-12 13:24:03,586 INFO L349 Elim1Store]: treesize reduction 75, result has 41.4 percent of original size [2024-11-12 13:24:03,586 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 3 case distinctions, treesize of input 165 treesize of output 156 [2024-11-12 13:24:03,619 INFO L349 Elim1Store]: treesize reduction 99, result has 22.7 percent of original size [2024-11-12 13:24:03,620 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 3 case distinctions, treesize of input 103 treesize of output 70 [2024-11-12 13:24:03,622 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 13:24:03,641 INFO L349 Elim1Store]: treesize reduction 85, result has 4.5 percent of original size [2024-11-12 13:24:03,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 41 [2024-11-12 13:24:03,644 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-12 13:24:03,683 INFO L349 Elim1Store]: treesize reduction 58, result has 34.8 percent of original size [2024-11-12 13:24:03,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 74 [2024-11-12 13:24:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:04,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236904565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:24:04,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:24:04,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 27] total 73 [2024-11-12 13:24:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677833448] [2024-11-12 13:24:04,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:24:04,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-12 13:24:04,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:24:04,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-12 13:24:04,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=5052, Unknown=29, NotChecked=0, Total=5402 [2024-11-12 13:24:04,209 INFO L87 Difference]: Start difference. First operand 240 states and 298 transitions. Second operand has 74 states, 73 states have (on average 1.6712328767123288) internal successors, (122), 74 states have internal predecessors, (122), 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) [2024-11-12 13:24:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:24:07,285 INFO L93 Difference]: Finished difference Result 269 states and 332 transitions. [2024-11-12 13:24:07,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-12 13:24:07,285 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 1.6712328767123288) internal successors, (122), 74 states have internal predecessors, (122), 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 42 [2024-11-12 13:24:07,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:24:07,286 INFO L225 Difference]: With dead ends: 269 [2024-11-12 13:24:07,286 INFO L226 Difference]: Without dead ends: 269 [2024-11-12 13:24:07,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2025 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=614, Invalid=8477, Unknown=29, NotChecked=0, Total=9120 [2024-11-12 13:24:07,288 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 120 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-12 13:24:07,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 2319 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-12 13:24:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-12 13:24:07,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 240. [2024-11-12 13:24:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.4075829383886256) internal successors, (297), 239 states have internal predecessors, (297), 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) [2024-11-12 13:24:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 297 transitions. [2024-11-12 13:24:07,291 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 297 transitions. Word has length 42 [2024-11-12 13:24:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:24:07,291 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 297 transitions. [2024-11-12 13:24:07,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 1.6712328767123288) internal successors, (122), 74 states have internal predecessors, (122), 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) [2024-11-12 13:24:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 297 transitions. [2024-11-12 13:24:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-12 13:24:07,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:24:07,292 INFO L218 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, 1, 1, 1, 1, 1] [2024-11-12 13:24:07,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 13:24:07,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-12 13:24:07,496 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:24:07,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:24:07,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2003519777, now seen corresponding path program 1 times [2024-11-12 13:24:07,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:24:07,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43423886] [2024-11-12 13:24:07,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:24:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:24:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:08,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:24:08,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43423886] [2024-11-12 13:24:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43423886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:24:08,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879285561] [2024-11-12 13:24:08,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:24:08,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:24:08,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:24:08,246 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:24:08,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 13:24:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:08,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-12 13:24:08,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:24:08,393 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 11 treesize of output 5 [2024-11-12 13:24:08,398 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 [2024-11-12 13:24:08,428 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 [2024-11-12 13:24:08,432 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 15 treesize of output 1 [2024-11-12 13:24:08,458 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-12 13:24:08,458 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 [2024-11-12 13:24:08,489 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 28 treesize of output 16 [2024-11-12 13:24:08,494 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 [2024-11-12 13:24:08,729 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 19 treesize of output 11 [2024-11-12 13:24:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:08,785 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 33 treesize of output 28 [2024-11-12 13:24:08,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:08,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:08,855 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-11-12 13:24:08,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 48 [2024-11-12 13:24:13,177 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 66 treesize of output 41 [2024-11-12 13:24:13,256 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 66 treesize of output 41 [2024-11-12 13:24:13,336 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 66 treesize of output 41 [2024-11-12 13:24:17,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:24:17,887 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 22 treesize of output 18 [2024-11-12 13:24:17,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:17,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:18,003 INFO L349 Elim1Store]: treesize reduction 10, result has 86.7 percent of original size [2024-11-12 13:24:18,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 89 [2024-11-12 13:24:18,091 INFO L349 Elim1Store]: treesize reduction 32, result has 54.9 percent of original size [2024-11-12 13:24:18,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 63 [2024-11-12 13:24:18,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 13:24:18,265 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 45 [2024-11-12 13:24:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:18,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 13:24:19,543 INFO L349 Elim1Store]: treesize reduction 99, result has 22.7 percent of original size [2024-11-12 13:24:19,543 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 3 case distinctions, treesize of input 83 treesize of output 50 [2024-11-12 13:24:19,569 INFO L349 Elim1Store]: treesize reduction 39, result has 56.2 percent of original size [2024-11-12 13:24:19,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 77 treesize of output 102 [2024-11-12 13:24:19,573 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 40 treesize of output 38 [2024-11-12 13:24:20,254 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 14 [2024-11-12 13:24:20,257 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 89 treesize of output 85 [2024-11-12 13:24:20,269 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 10 treesize of output 8 [2024-11-12 13:24:20,271 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 12 [2024-11-12 13:24:20,276 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 14 [2024-11-12 13:24:20,279 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 56 treesize of output 54 [2024-11-12 13:24:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:20,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879285561] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 13:24:20,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 13:24:20,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 31, 31] total 83 [2024-11-12 13:24:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485879465] [2024-11-12 13:24:20,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 13:24:20,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-11-12 13:24:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 13:24:20,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-11-12 13:24:20,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=6403, Unknown=35, NotChecked=0, Total=6806 [2024-11-12 13:24:20,366 INFO L87 Difference]: Start difference. First operand 240 states and 297 transitions. Second operand has 83 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 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) [2024-11-12 13:24:24,924 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] [2024-11-12 13:24:28,950 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] [2024-11-12 13:24:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 13:24:42,764 INFO L93 Difference]: Finished difference Result 268 states and 330 transitions. [2024-11-12 13:24:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-12 13:24:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 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 43 [2024-11-12 13:24:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 13:24:42,765 INFO L225 Difference]: With dead ends: 268 [2024-11-12 13:24:42,765 INFO L226 Difference]: Without dead ends: 268 [2024-11-12 13:24:42,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=722, Invalid=10370, Unknown=38, NotChecked=0, Total=11130 [2024-11-12 13:24:42,768 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 162 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-12 13:24:42,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3624 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2270 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2024-11-12 13:24:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-12 13:24:42,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 240. [2024-11-12 13:24:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.4028436018957346) internal successors, (296), 239 states have internal predecessors, (296), 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) [2024-11-12 13:24:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 296 transitions. [2024-11-12 13:24:42,771 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 296 transitions. Word has length 43 [2024-11-12 13:24:42,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 13:24:42,771 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 296 transitions. [2024-11-12 13:24:42,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 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) [2024-11-12 13:24:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 296 transitions. [2024-11-12 13:24:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-12 13:24:42,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 13:24:42,772 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 13:24:42,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-12 13:24:42,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-12 13:24:42,972 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-11-12 13:24:42,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 13:24:42,973 INFO L85 PathProgramCache]: Analyzing trace with hash -78775288, now seen corresponding path program 1 times [2024-11-12 13:24:42,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 13:24:42,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392204204] [2024-11-12 13:24:42,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:24:42,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 13:24:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 13:24:43,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 13:24:43,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392204204] [2024-11-12 13:24:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392204204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 13:24:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264121940] [2024-11-12 13:24:43,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 13:24:43,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 13:24:43,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 13:24:43,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 13:24:43,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 13:24:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 13:24:43,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-12 13:24:43,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 13:24:43,966 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 [2024-11-12 13:24:43,968 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 15 treesize of output 1 [2024-11-12 13:24:44,006 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 19 treesize of output 1 [2024-11-12 13:24:44,008 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 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-12 13:24:44,199 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 19 treesize of output 11 [2024-11-12 13:24:44,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:44,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 15 [2024-11-12 13:24:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:44,293 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 41 treesize of output 28 [2024-11-12 13:24:44,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:44,565 INFO L349 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2024-11-12 13:24:44,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 58 [2024-11-12 13:24:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:44,713 INFO L349 Elim1Store]: treesize reduction 178, result has 29.6 percent of original size [2024-11-12 13:24:44,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 120 treesize of output 133 [2024-11-12 13:24:44,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-12 13:24:44,994 INFO L349 Elim1Store]: treesize reduction 216, result has 35.3 percent of original size [2024-11-12 13:24:44,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 152 treesize of output 197