./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 20:52:11,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 20:52:11,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 20:52:11,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 20:52:11,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 20:52:11,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 20:52:11,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 20:52:11,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 20:52:11,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 20:52:11,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 20:52:11,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 20:52:11,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 20:52:11,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 20:52:11,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 20:52:11,256 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 20:52:11,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 20:52:11,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 20:52:11,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 20:52:11,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 20:52:11,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 20:52:11,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 20:52:11,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 20:52:11,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 20:52:11,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 20:52:11,262 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 20:52:11,263 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 20:52:11,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 20:52:11,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 20:52:11,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 20:52:11,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 20:52:11,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 20:52:11,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 20:52:11,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 20:52:11,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 20:52:11,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 20:52:11,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 20:52:11,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 20:52:11,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 20:52:11,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 20:52:11,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 20:52:11,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 20:52:11,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 20:52:11,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 [2024-11-19 20:52:11,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 20:52:11,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 20:52:11,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 20:52:11,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 20:52:11,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 20:52:11,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2024-11-19 20:52:13,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 20:52:13,289 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 20:52:13,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2024-11-19 20:52:13,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff746e5c/e8dd415f570140ba96967473d6adca59/FLAG049904400 [2024-11-19 20:52:13,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ff746e5c/e8dd415f570140ba96967473d6adca59 [2024-11-19 20:52:13,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 20:52:13,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 20:52:13,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 20:52:13,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 20:52:13,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 20:52:13,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dce6085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13, skipping insertion in model container [2024-11-19 20:52:13,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 20:52:13,716 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2024-11-19 20:52:13,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 20:52:13,735 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 20:52:13,785 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2024-11-19 20:52:13,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 20:52:13,812 INFO L204 MainTranslator]: Completed translation [2024-11-19 20:52:13,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13 WrapperNode [2024-11-19 20:52:13,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 20:52:13,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 20:52:13,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 20:52:13,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 20:52:13,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,855 INFO L138 Inliner]: procedures = 122, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-19 20:52:13,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 20:52:13,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 20:52:13,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 20:52:13,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 20:52:13,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,869 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,888 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 6 writes are split as follows [0, 6]. [2024-11-19 20:52:13,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 20:52:13,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 20:52:13,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 20:52:13,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 20:52:13,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (1/1) ... [2024-11-19 20:52:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 20:52:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:13,938 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) [2024-11-19 20:52:13,940 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 [2024-11-19 20:52:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 20:52:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 20:52:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 20:52:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 20:52:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 20:52:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 20:52:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 20:52:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 20:52:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 20:52:14,078 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 20:52:14,080 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 20:52:14,260 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-19 20:52:14,260 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 20:52:14,274 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 20:52:14,275 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 20:52:14,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:52:14 BoogieIcfgContainer [2024-11-19 20:52:14,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 20:52:14,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 20:52:14,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 20:52:14,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 20:52:14,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:52:13" (1/3) ... [2024-11-19 20:52:14,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4405ae39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:52:14, skipping insertion in model container [2024-11-19 20:52:14,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:52:13" (2/3) ... [2024-11-19 20:52:14,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4405ae39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:52:14, skipping insertion in model container [2024-11-19 20:52:14,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:52:14" (3/3) ... [2024-11-19 20:52:14,284 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_nullified-2.i [2024-11-19 20:52:14,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 20:52:14,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 20:52:14,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 20:52:14,352 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=LoopHeads, 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;@65288360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 20:52:14,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 20:52:14,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 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) [2024-11-19 20:52:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 20:52:14,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:14,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:14,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:14,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash -91270904, now seen corresponding path program 1 times [2024-11-19 20:52:14,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:14,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15104223] [2024-11-19 20:52:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:14,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15104223] [2024-11-19 20:52:14,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15104223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 20:52:14,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 20:52:14,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 20:52:14,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507914983] [2024-11-19 20:52:14,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 20:52:14,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 20:52:14,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 20:52:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 20:52:14,689 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 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) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-19 20:52:14,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:14,718 INFO L93 Difference]: Finished difference Result 52 states and 78 transitions. [2024-11-19 20:52:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 20:52:14,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2024-11-19 20:52:14,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:14,737 INFO L225 Difference]: With dead ends: 52 [2024-11-19 20:52:14,737 INFO L226 Difference]: Without dead ends: 27 [2024-11-19 20:52:14,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 20:52:14,744 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:14,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 20:52:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-19 20:52:14,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2024-11-19 20:52:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 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) [2024-11-19 20:52:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2024-11-19 20:52:14,775 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 12 [2024-11-19 20:52:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:14,776 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2024-11-19 20:52:14,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-11-19 20:52:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2024-11-19 20:52:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 20:52:14,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:14,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:14,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 20:52:14,777 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:14,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1034399597, now seen corresponding path program 1 times [2024-11-19 20:52:14,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:14,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956068852] [2024-11-19 20:52:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:14,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:14,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956068852] [2024-11-19 20:52:14,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956068852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 20:52:14,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 20:52:14,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 20:52:14,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108253441] [2024-11-19 20:52:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 20:52:14,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 20:52:14,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:14,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 20:52:14,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 20:52:14,999 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:15,042 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2024-11-19 20:52:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 20:52:15,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-19 20:52:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:15,044 INFO L225 Difference]: With dead ends: 46 [2024-11-19 20:52:15,044 INFO L226 Difference]: Without dead ends: 26 [2024-11-19 20:52:15,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 20:52:15,045 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:15,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 20:52:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-19 20:52:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-19 20:52:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 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) [2024-11-19 20:52:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2024-11-19 20:52:15,053 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 17 [2024-11-19 20:52:15,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:15,053 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2024-11-19 20:52:15,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2024-11-19 20:52:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 20:52:15,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:15,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:15,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 20:52:15,055 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:15,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash -776234159, now seen corresponding path program 1 times [2024-11-19 20:52:15,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:15,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036628313] [2024-11-19 20:52:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:15,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:15,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036628313] [2024-11-19 20:52:15,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036628313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349210481] [2024-11-19 20:52:15,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:15,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:15,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:15,236 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) [2024-11-19 20:52:15,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 20:52:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:15,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 20:52:15,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:15,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349210481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:15,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 20:52:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222919444] [2024-11-19 20:52:15,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:15,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 20:52:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 20:52:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 20:52:15,456 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:15,490 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2024-11-19 20:52:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 20:52:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-19 20:52:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:15,492 INFO L225 Difference]: With dead ends: 53 [2024-11-19 20:52:15,493 INFO L226 Difference]: Without dead ends: 38 [2024-11-19 20:52:15,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 20:52:15,495 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 13 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:15,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 86 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 20:52:15,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-19 20:52:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-19 20:52:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2024-11-19 20:52:15,504 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 17 [2024-11-19 20:52:15,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:15,505 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2024-11-19 20:52:15,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2024-11-19 20:52:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 20:52:15,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:15,506 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:15,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 20:52:15,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:15,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:15,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash -459646902, now seen corresponding path program 1 times [2024-11-19 20:52:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673288795] [2024-11-19 20:52:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:16,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:16,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673288795] [2024-11-19 20:52:16,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673288795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:16,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133179872] [2024-11-19 20:52:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:16,107 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) [2024-11-19 20:52:16,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 20:52:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:16,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 20:52:16,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:16,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:52:16,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133179872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:16,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:16,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-19 20:52:16,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102612033] [2024-11-19 20:52:16,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:16,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 20:52:16,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:16,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 20:52:16,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 20:52:16,421 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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) [2024-11-19 20:52:16,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:16,458 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2024-11-19 20:52:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 20:52:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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 [2024-11-19 20:52:16,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:16,462 INFO L225 Difference]: With dead ends: 58 [2024-11-19 20:52:16,462 INFO L226 Difference]: Without dead ends: 43 [2024-11-19 20:52:16,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 20:52:16,463 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:16,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 128 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 20:52:16,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-19 20:52:16,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-19 20:52:16,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:16,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2024-11-19 20:52:16,472 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 32 [2024-11-19 20:52:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:16,473 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2024-11-19 20:52:16,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 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) [2024-11-19 20:52:16,473 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2024-11-19 20:52:16,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-19 20:52:16,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:16,474 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:16,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 20:52:16,674 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,SelfDestructingSolverStorable3 [2024-11-19 20:52:16,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:16,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -910589295, now seen corresponding path program 2 times [2024-11-19 20:52:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:16,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559856684] [2024-11-19 20:52:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:17,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559856684] [2024-11-19 20:52:17,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559856684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:17,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524487029] [2024-11-19 20:52:17,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 20:52:17,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:17,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:17,320 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) [2024-11-19 20:52:17,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 20:52:17,534 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 20:52:17,534 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 20:52:17,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-19 20:52:17,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:17,575 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 [2024-11-19 20:52:17,614 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 20:52:17,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 20:52:17,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2024-11-19 20:52:17,720 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 16 [2024-11-19 20:52:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:17,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:18,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:18,595 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 5 case distinctions, treesize of input 38 treesize of output 59 [2024-11-19 20:52:18,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:18,602 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 40 treesize of output 26 [2024-11-19 20:52:18,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-19 20:52:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:18,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524487029] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:18,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:18,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-19 20:52:18,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016512576] [2024-11-19 20:52:18,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:18,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 20:52:18,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 20:52:18,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=320, Unknown=7, NotChecked=0, Total=380 [2024-11-19 20:52:18,652 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:19,303 INFO L93 Difference]: Finished difference Result 69 states and 92 transitions. [2024-11-19 20:52:19,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 20:52:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 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 [2024-11-19 20:52:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:19,305 INFO L225 Difference]: With dead ends: 69 [2024-11-19 20:52:19,305 INFO L226 Difference]: Without dead ends: 56 [2024-11-19 20:52:19,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=145, Invalid=660, Unknown=7, NotChecked=0, Total=812 [2024-11-19 20:52:19,308 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:19,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 181 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 20:52:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-19 20:52:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2024-11-19 20:52:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2024-11-19 20:52:19,317 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 37 [2024-11-19 20:52:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:19,318 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2024-11-19 20:52:19,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2024-11-19 20:52:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-19 20:52:19,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:19,319 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:19,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 20:52:19,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:19,520 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:19,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:19,520 INFO L85 PathProgramCache]: Analyzing trace with hash -908742253, now seen corresponding path program 1 times [2024-11-19 20:52:19,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:19,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673788127] [2024-11-19 20:52:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 28 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 20:52:20,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673788127] [2024-11-19 20:52:20,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673788127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642980953] [2024-11-19 20:52:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:20,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:20,368 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) [2024-11-19 20:52:20,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 20:52:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:20,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 20:52:20,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:20,600 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 [2024-11-19 20:52:20,618 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 20:52:20,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 20:52:20,652 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 43 treesize of output 26 [2024-11-19 20:52:20,694 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 25 [2024-11-19 20:52:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:20,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:20,939 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_988 (Array Int Int))) (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_988) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) 0)) is different from false [2024-11-19 20:52:20,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:20,968 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 61 [2024-11-19 20:52:20,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:20,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 32 [2024-11-19 20:52:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2024-11-19 20:52:21,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642980953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:21,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:21,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 26 [2024-11-19 20:52:21,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129545729] [2024-11-19 20:52:21,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:21,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-19 20:52:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:21,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-19 20:52:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=533, Unknown=1, NotChecked=46, Total=650 [2024-11-19 20:52:21,035 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 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) [2024-11-19 20:52:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:21,619 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2024-11-19 20:52:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 20:52:21,620 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 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 [2024-11-19 20:52:21,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:21,621 INFO L225 Difference]: With dead ends: 69 [2024-11-19 20:52:21,621 INFO L226 Difference]: Without dead ends: 56 [2024-11-19 20:52:21,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=975, Unknown=1, NotChecked=64, Total=1190 [2024-11-19 20:52:21,622 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:21,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 177 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 268 Invalid, 0 Unknown, 35 Unchecked, 0.3s Time] [2024-11-19 20:52:21,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-19 20:52:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2024-11-19 20:52:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 48 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2024-11-19 20:52:21,633 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 37 [2024-11-19 20:52:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:21,634 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2024-11-19 20:52:21,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 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) [2024-11-19 20:52:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-19 20:52:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 20:52:21,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:21,636 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:21,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 20:52:21,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:21,841 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:21,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash 829738032, now seen corresponding path program 1 times [2024-11-19 20:52:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218532528] [2024-11-19 20:52:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:22,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:22,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218532528] [2024-11-19 20:52:22,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218532528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:22,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113872951] [2024-11-19 20:52:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:22,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:22,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:22,299 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) [2024-11-19 20:52:22,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 20:52:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:22,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 20:52:22,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:22,547 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 6 treesize of output 5 [2024-11-19 20:52:22,609 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 20:52:22,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-19 20:52:22,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-19 20:52:22,697 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 20:52:22,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-19 20:52:22,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-19 20:52:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 20:52:22,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:22,912 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1311 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1311) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) 0))) is different from false [2024-11-19 20:52:22,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:22,925 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 2 case distinctions, treesize of input 28 treesize of output 34 [2024-11-19 20:52:22,928 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 39 treesize of output 27 [2024-11-19 20:52:22,932 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 8 treesize of output 4 [2024-11-19 20:52:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 1 not checked. [2024-11-19 20:52:23,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113872951] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:23,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:23,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2024-11-19 20:52:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269709043] [2024-11-19 20:52:23,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:23,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 20:52:23,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 20:52:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=634, Unknown=1, NotChecked=50, Total=756 [2024-11-19 20:52:23,067 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 28 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:23,768 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2024-11-19 20:52:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 20:52:23,769 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 28 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-19 20:52:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:23,770 INFO L225 Difference]: With dead ends: 87 [2024-11-19 20:52:23,770 INFO L226 Difference]: Without dead ends: 49 [2024-11-19 20:52:23,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1214, Unknown=1, NotChecked=72, Total=1482 [2024-11-19 20:52:23,771 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:23,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 297 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 351 Invalid, 0 Unknown, 25 Unchecked, 0.4s Time] [2024-11-19 20:52:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-19 20:52:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-19 20:52:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:23,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-19 20:52:23,777 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 38 [2024-11-19 20:52:23,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:23,777 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-19 20:52:23,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.142857142857143) internal successors, (60), 28 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:23,777 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2024-11-19 20:52:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 20:52:23,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:23,778 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:23,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 20:52:23,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:23,982 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:23,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 731872996, now seen corresponding path program 1 times [2024-11-19 20:52:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108413437] [2024-11-19 20:52:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 20:52:25,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:25,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108413437] [2024-11-19 20:52:25,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108413437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:25,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311518733] [2024-11-19 20:52:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:25,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:25,402 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) [2024-11-19 20:52:25,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 20:52:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:25,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-19 20:52:25,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:25,647 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 [2024-11-19 20:52:25,674 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:25,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:25,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2024-11-19 20:52:25,828 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 16 [2024-11-19 20:52:25,971 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-19 20:52:25,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-19 20:52:26,025 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 24 treesize of output 9 [2024-11-19 20:52:26,032 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 16 [2024-11-19 20:52:26,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-19 20:52:26,114 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 20:52:26,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 97 [2024-11-19 20:52:26,120 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 39 treesize of output 20 [2024-11-19 20:52:26,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 33 [2024-11-19 20:52:26,373 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 46 treesize of output 22 [2024-11-19 20:52:26,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:26,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2024-11-19 20:52:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:26,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:26,565 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1648 (Array Int Int)) (v_ArrVal_1647 Int) (v_ArrVal_1649 (Array Int Int))) (= (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) v_ArrVal_1647)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1648) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0)) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1649) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) 0)) is different from false [2024-11-19 20:52:26,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:26,578 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 2 case distinctions, treesize of input 71 treesize of output 77 [2024-11-19 20:52:26,581 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 124 treesize of output 112 [2024-11-19 20:52:26,588 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 55 treesize of output 51 [2024-11-19 20:52:26,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:26,596 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 2 case distinctions, treesize of input 96 treesize of output 86 [2024-11-19 20:52:26,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:26,603 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 146 treesize of output 122 [2024-11-19 20:52:26,608 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 31 treesize of output 27 [2024-11-19 20:52:26,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:26,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2024-11-19 20:52:27,234 INFO L349 Elim1Store]: treesize reduction 193, result has 36.5 percent of original size [2024-11-19 20:52:27,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 603 treesize of output 453 [2024-11-19 20:52:27,260 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:27,261 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 507 treesize of output 499 [2024-11-19 20:52:27,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:27,292 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 503 treesize of output 487 [2024-11-19 20:52:27,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:27,325 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 514 treesize of output 510 [2024-11-19 20:52:27,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-19 20:52:27,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:27,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 279 treesize of output 287 [2024-11-19 20:52:28,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:28,444 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 5 case distinctions, treesize of input 41 treesize of output 62 [2024-11-19 20:52:28,449 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:28,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:28,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 26 [2024-11-19 20:52:28,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-19 20:52:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 38 proven. 11 refuted. 3 times theorem prover too weak. 7 trivial. 2 not checked. [2024-11-19 20:52:28,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311518733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:28,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:28,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 16] total 42 [2024-11-19 20:52:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266903964] [2024-11-19 20:52:28,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:28,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 20:52:28,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:28,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 20:52:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1481, Unknown=7, NotChecked=78, Total=1722 [2024-11-19 20:52:28,678 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 42 states, 42 states have (on average 2.119047619047619) internal successors, (89), 42 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:30,335 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2024-11-19 20:52:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 20:52:30,336 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.119047619047619) internal successors, (89), 42 states have internal predecessors, (89), 0 states have call successors, (0), 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 [2024-11-19 20:52:30,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:30,337 INFO L225 Difference]: With dead ends: 75 [2024-11-19 20:52:30,337 INFO L226 Difference]: Without dead ends: 62 [2024-11-19 20:52:30,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=397, Invalid=2680, Unknown=7, NotChecked=108, Total=3192 [2024-11-19 20:52:30,339 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 48 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:30,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 294 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 721 Invalid, 0 Unknown, 52 Unchecked, 0.9s Time] [2024-11-19 20:52:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-19 20:52:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2024-11-19 20:52:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 51 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2024-11-19 20:52:30,352 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 43 [2024-11-19 20:52:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:30,356 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2024-11-19 20:52:30,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.119047619047619) internal successors, (89), 42 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2024-11-19 20:52:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 20:52:30,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:30,357 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:30,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 20:52:30,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:30,559 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:30,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:30,559 INFO L85 PathProgramCache]: Analyzing trace with hash 733720038, now seen corresponding path program 1 times [2024-11-19 20:52:30,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:30,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071884443] [2024-11-19 20:52:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 35 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 20:52:31,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:31,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071884443] [2024-11-19 20:52:31,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071884443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:31,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357352720] [2024-11-19 20:52:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:31,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:31,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:31,849 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) [2024-11-19 20:52:31,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 20:52:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:32,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-19 20:52:32,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:32,124 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 [2024-11-19 20:52:32,179 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:32,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:32,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 7 [2024-11-19 20:52:32,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-19 20:52:32,387 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-19 20:52:32,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-19 20:52:32,426 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 24 treesize of output 9 [2024-11-19 20:52:32,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-19 20:52:32,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-19 20:52:32,488 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 20:52:32,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 86 [2024-11-19 20:52:32,497 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 47 treesize of output 17 [2024-11-19 20:52:32,502 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 30 treesize of output 13 [2024-11-19 20:52:32,658 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 33 treesize of output 15 [2024-11-19 20:52:32,662 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 9 treesize of output 3 [2024-11-19 20:52:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:32,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:32,914 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:32,915 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 2 case distinctions, treesize of input 73 treesize of output 79 [2024-11-19 20:52:32,918 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 128 treesize of output 116 [2024-11-19 20:52:32,923 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 57 treesize of output 53 [2024-11-19 20:52:32,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:32,932 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 2 case distinctions, treesize of input 100 treesize of output 90 [2024-11-19 20:52:32,935 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 144 treesize of output 126 [2024-11-19 20:52:32,939 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 33 treesize of output 29 [2024-11-19 20:52:33,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:33,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:33,418 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 60 treesize of output 54 [2024-11-19 20:52:33,421 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 54 treesize of output 46 [2024-11-19 20:52:33,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-19 20:52:33,540 INFO L349 Elim1Store]: treesize reduction 201, result has 36.0 percent of original size [2024-11-19 20:52:33,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 2449 treesize of output 1589 [2024-11-19 20:52:33,563 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:33,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:33,572 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 337 treesize of output 331 [2024-11-19 20:52:33,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:33,593 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 197 treesize of output 181 [2024-11-19 20:52:33,603 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 88 treesize of output 80 [2024-11-19 20:52:33,629 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 8 treesize of output 4 [2024-11-19 20:52:33,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:33,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2024-11-19 20:52:33,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:33,849 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 5 case distinctions, treesize of input 43 treesize of output 64 [2024-11-19 20:52:33,853 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:33,855 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 36 treesize of output 24 [2024-11-19 20:52:33,861 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 7 treesize of output 3 [2024-11-19 20:52:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 15 refuted. 2 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357352720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:34,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:34,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 42 [2024-11-19 20:52:34,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934093442] [2024-11-19 20:52:34,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:34,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 20:52:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:34,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 20:52:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1531, Unknown=32, NotChecked=0, Total=1722 [2024-11-19 20:52:34,067 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 42 states, 42 states have (on average 2.142857142857143) internal successors, (90), 42 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:35,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:35,436 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2024-11-19 20:52:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 20:52:35,436 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.142857142857143) internal successors, (90), 42 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-19 20:52:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:35,438 INFO L225 Difference]: With dead ends: 75 [2024-11-19 20:52:35,438 INFO L226 Difference]: Without dead ends: 62 [2024-11-19 20:52:35,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=326, Invalid=2500, Unknown=36, NotChecked=0, Total=2862 [2024-11-19 20:52:35,440 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:35,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 327 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 20:52:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-19 20:52:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-11-19 20:52:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2024-11-19 20:52:35,457 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 43 [2024-11-19 20:52:35,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:35,462 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-11-19 20:52:35,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.142857142857143) internal successors, (90), 42 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-11-19 20:52:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 20:52:35,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:35,463 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:35,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 20:52:35,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:35,665 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:35,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:35,666 INFO L85 PathProgramCache]: Analyzing trace with hash 733721960, now seen corresponding path program 1 times [2024-11-19 20:52:35,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:35,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941176187] [2024-11-19 20:52:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:35,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 34 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 20:52:36,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:36,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941176187] [2024-11-19 20:52:36,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941176187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:36,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981107639] [2024-11-19 20:52:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:36,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:36,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:36,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 20:52:36,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 20:52:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:37,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-19 20:52:37,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:37,232 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 [2024-11-19 20:52:37,255 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:37,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:37,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2024-11-19 20:52:37,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-19 20:52:37,411 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-19 20:52:37,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-19 20:52:37,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-19 20:52:37,492 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 16 [2024-11-19 20:52:37,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-19 20:52:37,552 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 20:52:37,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 82 [2024-11-19 20:52:37,557 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 24 treesize of output 11 [2024-11-19 20:52:37,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2024-11-19 20:52:37,763 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 45 treesize of output 25 [2024-11-19 20:52:37,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-19 20:52:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:37,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:37,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:37,983 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 2 case distinctions, treesize of input 73 treesize of output 79 [2024-11-19 20:52:37,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:37,988 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 138 treesize of output 120 [2024-11-19 20:52:37,994 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 57 treesize of output 53 [2024-11-19 20:52:38,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,003 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 2 case distinctions, treesize of input 100 treesize of output 90 [2024-11-19 20:52:38,006 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 144 treesize of output 126 [2024-11-19 20:52:38,009 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 33 treesize of output 29 [2024-11-19 20:52:38,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:38,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,372 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 5 case distinctions, treesize of input 43 treesize of output 64 [2024-11-19 20:52:38,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:38,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 28 [2024-11-19 20:52:38,390 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 7 treesize of output 3 [2024-11-19 20:52:38,461 INFO L349 Elim1Store]: treesize reduction 199, result has 36.2 percent of original size [2024-11-19 20:52:38,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 335 treesize of output 301 [2024-11-19 20:52:38,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,476 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 987 treesize of output 969 [2024-11-19 20:52:38,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,506 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 471 treesize of output 455 [2024-11-19 20:52:38,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,526 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 558 treesize of output 518 [2024-11-19 20:52:38,570 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 8 treesize of output 4 [2024-11-19 20:52:38,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:38,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 357 treesize of output 355 [2024-11-19 20:52:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 16 refuted. 1 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:39,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981107639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:39,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:39,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 42 [2024-11-19 20:52:39,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577015791] [2024-11-19 20:52:39,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 20:52:39,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:39,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 20:52:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1538, Unknown=13, NotChecked=0, Total=1722 [2024-11-19 20:52:39,358 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 42 states, 42 states have (on average 2.3095238095238093) internal successors, (97), 42 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:40,525 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2024-11-19 20:52:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 20:52:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.3095238095238093) internal successors, (97), 42 states have internal predecessors, (97), 0 states have call successors, (0), 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 [2024-11-19 20:52:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:40,526 INFO L225 Difference]: With dead ends: 64 [2024-11-19 20:52:40,527 INFO L226 Difference]: Without dead ends: 62 [2024-11-19 20:52:40,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=2554, Unknown=13, NotChecked=0, Total=2970 [2024-11-19 20:52:40,528 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 23 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:40,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 267 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 20:52:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-19 20:52:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2024-11-19 20:52:40,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 54 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2024-11-19 20:52:40,534 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 43 [2024-11-19 20:52:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:40,534 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2024-11-19 20:52:40,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.3095238095238093) internal successors, (97), 42 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2024-11-19 20:52:40,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 20:52:40,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:40,536 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:40,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 20:52:40,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 20:52:40,740 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:40,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 206461501, now seen corresponding path program 1 times [2024-11-19 20:52:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:40,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492898195] [2024-11-19 20:52:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 20:52:41,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:41,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492898195] [2024-11-19 20:52:41,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492898195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:41,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206701601] [2024-11-19 20:52:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:41,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:41,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:41,870 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 20:52:41,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 20:52:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:42,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-19 20:52:42,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:42,138 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 [2024-11-19 20:52:42,155 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:42,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:42,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2024-11-19 20:52:42,235 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 30 treesize of output 21 [2024-11-19 20:52:42,321 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-19 20:52:42,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-19 20:52:42,363 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 24 treesize of output 9 [2024-11-19 20:52:42,368 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 30 treesize of output 21 [2024-11-19 20:52:42,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-19 20:52:42,413 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-19 20:52:42,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 108 [2024-11-19 20:52:42,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 49 [2024-11-19 20:52:42,431 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 30 treesize of output 13 [2024-11-19 20:52:42,619 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 59 treesize of output 29 [2024-11-19 20:52:42,626 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 9 treesize of output 3 [2024-11-19 20:52:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:42,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:42,825 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2658 (Array Int Int)) (v_ArrVal_2660 (Array Int Int)) (v_ArrVal_2659 Int)) (= (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) v_ArrVal_2659)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2658) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0)) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2660) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) 0)) is different from false [2024-11-19 20:52:42,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:42,839 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 2 case distinctions, treesize of input 71 treesize of output 77 [2024-11-19 20:52:42,846 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 124 treesize of output 112 [2024-11-19 20:52:42,850 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 55 treesize of output 51 [2024-11-19 20:52:42,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:42,860 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 2 case distinctions, treesize of input 96 treesize of output 86 [2024-11-19 20:52:42,864 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 136 treesize of output 118 [2024-11-19 20:52:42,868 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 31 treesize of output 27 [2024-11-19 20:52:43,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2024-11-19 20:52:43,287 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 114 treesize of output 106 [2024-11-19 20:52:43,291 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 23 treesize of output 21 [2024-11-19 20:52:43,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-19 20:52:43,377 INFO L349 Elim1Store]: treesize reduction 193, result has 36.5 percent of original size [2024-11-19 20:52:43,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 603 treesize of output 453 [2024-11-19 20:52:43,386 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:43,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,391 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 327 treesize of output 317 [2024-11-19 20:52:43,426 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 181 treesize of output 177 [2024-11-19 20:52:43,437 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 84 treesize of output 80 [2024-11-19 20:52:43,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-19 20:52:43,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 138 [2024-11-19 20:52:43,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,758 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 5 case distinctions, treesize of input 41 treesize of output 62 [2024-11-19 20:52:43,761 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:43,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:43,763 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 50 treesize of output 30 [2024-11-19 20:52:43,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-19 20:52:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 10 refuted. 1 times theorem prover too weak. 7 trivial. 2 not checked. [2024-11-19 20:52:43,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206701601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:43,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:43,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 16] total 42 [2024-11-19 20:52:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478870807] [2024-11-19 20:52:43,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:43,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 20:52:43,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:43,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 20:52:43,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1482, Unknown=4, NotChecked=78, Total=1722 [2024-11-19 20:52:43,897 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 42 states, 42 states have (on average 2.1666666666666665) internal successors, (91), 42 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:45,130 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2024-11-19 20:52:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 20:52:45,131 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.1666666666666665) internal successors, (91), 42 states have internal predecessors, (91), 0 states have call successors, (0), 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 44 [2024-11-19 20:52:45,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:45,132 INFO L225 Difference]: With dead ends: 69 [2024-11-19 20:52:45,132 INFO L226 Difference]: Without dead ends: 62 [2024-11-19 20:52:45,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=399, Invalid=2681, Unknown=4, NotChecked=108, Total=3192 [2024-11-19 20:52:45,133 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 34 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:45,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 281 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 691 Invalid, 0 Unknown, 49 Unchecked, 0.7s Time] [2024-11-19 20:52:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-19 20:52:45,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2024-11-19 20:52:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 56 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2024-11-19 20:52:45,139 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 44 [2024-11-19 20:52:45,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:45,139 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2024-11-19 20:52:45,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.1666666666666665) internal successors, (91), 42 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2024-11-19 20:52:45,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 20:52:45,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:45,140 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:45,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 20:52:45,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:45,341 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:45,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:45,341 INFO L85 PathProgramCache]: Analyzing trace with hash 208308543, now seen corresponding path program 1 times [2024-11-19 20:52:45,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741323970] [2024-11-19 20:52:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 20:52:46,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:46,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741323970] [2024-11-19 20:52:46,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741323970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:46,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782105711] [2024-11-19 20:52:46,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:46,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:46,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:46,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 20:52:46,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 20:52:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:46,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-19 20:52:46,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:46,898 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 6 treesize of output 5 [2024-11-19 20:52:46,947 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:46,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:46,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-19 20:52:47,025 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 20:52:47,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2024-11-19 20:52:47,092 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-19 20:52:47,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-19 20:52:47,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2024-11-19 20:52:47,147 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 33 treesize of output 24 [2024-11-19 20:52:47,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-19 20:52:47,206 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-19 20:52:47,206 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 59 [2024-11-19 20:52:47,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 20:52:47,212 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 24 treesize of output 11 [2024-11-19 20:52:47,391 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 [2024-11-19 20:52:47,437 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 20:52:47,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 26 [2024-11-19 20:52:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 20:52:47,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:47,585 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2994 (Array Int Int)) (v_ArrVal_2995 Int)) (not (= (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) v_ArrVal_2995)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2994) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1) 4))) 0))) is different from false [2024-11-19 20:52:47,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:47,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 89 [2024-11-19 20:52:47,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:47,600 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 2 case distinctions, treesize of input 72 treesize of output 78 [2024-11-19 20:52:47,602 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 127 treesize of output 115 [2024-11-19 20:52:47,605 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 110 treesize of output 106 [2024-11-19 20:52:47,775 INFO L349 Elim1Store]: treesize reduction 22, result has 60.0 percent of original size [2024-11-19 20:52:47,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 81 [2024-11-19 20:52:47,797 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2024-11-19 20:52:47,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 21 [2024-11-19 20:52:48,086 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:48,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 39 [2024-11-19 20:52:48,089 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-19 20:52:48,091 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 31 [2024-11-19 20:52:48,096 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 26 treesize of output 22 [2024-11-19 20:52:48,098 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 0 case distinctions, treesize of input 35 treesize of output 27 [2024-11-19 20:52:48,111 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 78 treesize of output 70 [2024-11-19 20:52:48,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:48,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 71 [2024-11-19 20:52:48,128 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 50 treesize of output 46 [2024-11-19 20:52:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 2 not checked. [2024-11-19 20:52:48,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782105711] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 20:52:48,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 20:52:48,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 16] total 46 [2024-11-19 20:52:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554599019] [2024-11-19 20:52:48,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 20:52:48,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-19 20:52:48,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 20:52:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-19 20:52:48,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1837, Unknown=2, NotChecked=86, Total=2070 [2024-11-19 20:52:48,396 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 46 states, 46 states have (on average 2.1739130434782608) internal successors, (100), 46 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:52:50,053 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2024-11-19 20:52:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 20:52:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.1739130434782608) internal successors, (100), 46 states have internal predecessors, (100), 0 states have call successors, (0), 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 44 [2024-11-19 20:52:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:52:50,054 INFO L225 Difference]: With dead ends: 64 [2024-11-19 20:52:50,054 INFO L226 Difference]: Without dead ends: 55 [2024-11-19 20:52:50,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=420, Invalid=3488, Unknown=2, NotChecked=122, Total=4032 [2024-11-19 20:52:50,056 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 26 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 20:52:50,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 432 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 793 Invalid, 0 Unknown, 36 Unchecked, 1.0s Time] [2024-11-19 20:52:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-19 20:52:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-19 20:52:50,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-11-19 20:52:50,062 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 44 [2024-11-19 20:52:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:52:50,062 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-11-19 20:52:50,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.1739130434782608) internal successors, (100), 46 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 20:52:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-11-19 20:52:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 20:52:50,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:52:50,063 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 20:52:50,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 20:52:50,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 20:52:50,264 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:52:50,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:52:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1765953289, now seen corresponding path program 2 times [2024-11-19 20:52:50,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 20:52:50,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128320911] [2024-11-19 20:52:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:52:50,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 20:52:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:52:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 38 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 20:52:52,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 20:52:52,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128320911] [2024-11-19 20:52:52,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128320911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 20:52:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602657362] [2024-11-19 20:52:52,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 20:52:52,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 20:52:52,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:52:52,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 20:52:52,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 20:52:52,838 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 20:52:52,839 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 20:52:52,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 99 conjuncts are in the unsatisfiable core [2024-11-19 20:52:52,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:52:52,856 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 [2024-11-19 20:52:52,878 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-19 20:52:52,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-19 20:52:52,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2024-11-19 20:52:52,994 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 30 treesize of output 21 [2024-11-19 20:52:53,108 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-19 20:52:53,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-19 20:52:53,199 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 30 treesize of output 21 [2024-11-19 20:52:53,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-19 20:52:53,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-19 20:52:53,328 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-19 20:52:53,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 104 [2024-11-19 20:52:53,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 43 [2024-11-19 20:52:53,354 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 24 treesize of output 11 [2024-11-19 20:52:53,553 INFO L349 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2024-11-19 20:52:53,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2024-11-19 20:52:53,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 21 [2024-11-19 20:52:53,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-19 20:52:53,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 21 [2024-11-19 20:52:53,641 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 65 treesize of output 50 [2024-11-19 20:52:53,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 25 [2024-11-19 20:52:53,757 INFO L349 Elim1Store]: treesize reduction 110, result has 14.7 percent of original size [2024-11-19 20:52:53,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 217 treesize of output 109 [2024-11-19 20:52:53,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 31 [2024-11-19 20:52:53,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2024-11-19 20:52:54,653 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2024-11-19 20:52:54,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 144 treesize of output 57 [2024-11-19 20:52:54,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:54,661 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 26 treesize of output 10 [2024-11-19 20:52:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 20:52:54,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 20:52:55,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:55,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 364 treesize of output 300 [2024-11-19 20:52:55,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:55,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 284 treesize of output 220 [2024-11-19 20:52:55,151 WARN L851 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_dll_create_~new_head~0#1.offset| Int) (v_arrayElimArr_32 (Array Int Int)) (v_ArrVal_3344 (Array Int Int)) (v_ArrVal_3347 Int) (v_ArrVal_3334 (Array Int Int)) (v_ArrVal_3343 Int) (v_arrayElimArr_31 (Array Int Int))) (let ((.cse9 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12))) (let ((.cse6 (let ((.cse10 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_32))) (store .cse10 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse9 v_ArrVal_3343)))) (.cse3 (let ((.cse8 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_31))) (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse9 v_ArrVal_3347)))) (.cse1 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 12)) (.cse2 (store (store |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3334) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3344)) (.cse4 (select (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1)) (.cse7 (select (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1))) (or (not (= (select v_arrayElimArr_32 .cse0) 0)) (not (= (select v_arrayElimArr_31 .cse1) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (let ((.cse5 (+ .cse7 4))) (select (select .cse2 (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5))) 0) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select v_arrayElimArr_32 .cse1))) (not (= (select v_arrayElimArr_31 .cse0) 0)) (not (= (select (select .cse2 .cse4) .cse7) 0))))))) is different from false [2024-11-19 20:52:55,564 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_74| Int) (v_arrayElimArr_32 (Array Int Int)) (v_ArrVal_3330 (Array Int Int)) (v_ArrVal_3329 Int) (v_ArrVal_3344 (Array Int Int)) (v_ArrVal_3347 Int) (v_ArrVal_3334 (Array Int Int)) (|v_ULTIMATE.start_dll_create_~new_head~0#1.offset_66| Int) (v_ArrVal_3343 Int) (v_ArrVal_3328 (Array Int Int)) (v_arrayElimArr_31 (Array Int Int))) (let ((.cse0 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_66| 4))) (let ((.cse2 (select v_arrayElimArr_32 .cse0))) (let ((.cse10 (+ .cse2 12))) (let ((.cse7 (let ((.cse11 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3328) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74| v_arrayElimArr_32))) (store .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10 v_ArrVal_3343)))) (.cse4 (let ((.cse9 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3330) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74| v_arrayElimArr_31))) (store .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10 v_ArrVal_3347))))) (let ((.cse1 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_66| 12)) (.cse3 (store (store (store |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) v_ArrVal_3329)) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74| v_ArrVal_3334) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3344)) (.cse5 (select (select .cse4 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74|) .cse0)) (.cse8 (select (select .cse7 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74|) .cse0))) (or (not (= 0 (select |c_#valid| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_74|))) (not (= (select v_arrayElimArr_31 .cse0) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= (select v_arrayElimArr_31 .cse1) 0)) (not (= .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= (let ((.cse6 (+ .cse8 4))) (select (select .cse3 (select (select .cse4 .cse5) .cse6)) (select (select .cse7 .cse5) .cse6))) 0) (not (= (select v_arrayElimArr_32 .cse1) 0)) (not (= (select (select .cse3 .cse5) .cse8) 0))))))))) is different from false [2024-11-19 20:52:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 20:52:55,686 INFO L349 Elim1Store]: treesize reduction 444, result has 37.6 percent of original size [2024-11-19 20:52:55,686 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 9212 treesize of output 8509 [2024-11-19 20:52:55,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 20:52:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 20:52:55,930 INFO L349 Elim1Store]: treesize reduction 175, result has 48.1 percent of original size [2024-11-19 20:52:55,932 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 86367 treesize of output 63595 [2024-11-19 20:52:56,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:56,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 5389 treesize of output 5217 [2024-11-19 20:52:56,296 INFO L349 Elim1Store]: treesize reduction 42, result has 66.9 percent of original size [2024-11-19 20:52:56,297 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 8791 treesize of output 8504 [2024-11-19 20:52:56,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:56,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 5097 treesize of output 4095 [2024-11-19 20:52:56,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:56,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 4919 treesize of output 4615 [2024-11-19 20:52:57,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:57,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2616 treesize of output 2596 [2024-11-19 20:52:57,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:57,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2830 treesize of output 2802 [2024-11-19 20:52:59,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:59,068 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 274 treesize of output 274 [2024-11-19 20:52:59,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:52:59,702 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 375 treesize of output 363 [2024-11-19 20:53:00,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:00,594 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 209 treesize of output 209 [2024-11-19 20:53:00,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:00,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 145 [2024-11-19 20:53:02,304 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 17 treesize of output 4 [2024-11-19 20:53:02,315 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 8 treesize of output 4 [2024-11-19 20:53:02,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:02,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 661 treesize of output 773 [2024-11-19 20:53:10,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:10,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 597 treesize of output 611 [2024-11-19 20:53:14,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:14,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2024-11-19 20:53:14,598 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 27 treesize of output 23 [2024-11-19 20:53:14,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:14,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:14,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:14,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 58 [2024-11-19 20:53:15,112 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 20:53:15,112 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 12 treesize of output 11 [2024-11-19 20:53:15,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:15,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:15,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:15,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:15,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:15,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:15,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:18,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,107 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:18,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:18,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:18,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:18,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:18,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:19,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:19,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:19,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:20,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:20,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:20,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:20,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:20,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:20,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:20,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:20,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:27,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:27,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:27,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:27,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:27,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:27,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:27,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:31,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:31,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:31,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:31,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:31,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:31,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:31,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:32,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:32,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:32,683 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2024-11-19 20:53:32,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2024-11-19 20:53:32,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 20:53:32,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26