./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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/forester-heap/sll-simple-white-blue-1.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 b63900034700ff8018e29578512f73f88317ae4b603a38b2f2f558c77b57812d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 18:21:39,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 18:21:40,016 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 18:21:40,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 18:21:40,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 18:21:40,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 18:21:40,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 18:21:40,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 18:21:40,063 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 18:21:40,063 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 18:21:40,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 18:21:40,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 18:21:40,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 18:21:40,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 18:21:40,065 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 18:21:40,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 18:21:40,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 18:21:40,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 18:21:40,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 18:21:40,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 18:21:40,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 18:21:40,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 18:21:40,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 18:21:40,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 18:21:40,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 18:21:40,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 18:21:40,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 18:21:40,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 18:21:40,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 18:21:40,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 18:21:40,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 18:21:40,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 18:21:40,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:21:40,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 18:21:40,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 18:21:40,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 18:21:40,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 18:21:40,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 18:21:40,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 18:21:40,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 18:21:40,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 18:21:40,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 18:21:40,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63900034700ff8018e29578512f73f88317ae4b603a38b2f2f558c77b57812d [2024-10-12 18:21:40,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 18:21:40,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 18:21:40,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 18:21:40,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 18:21:40,407 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 18:21:40,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i [2024-10-12 18:21:41,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 18:21:42,268 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 18:21:42,269 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i [2024-10-12 18:21:42,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e9bc4b9/3705e2a58e3b458ca9879655b7cf7c34/FLAGfe519e074 [2024-10-12 18:21:42,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00e9bc4b9/3705e2a58e3b458ca9879655b7cf7c34 [2024-10-12 18:21:42,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 18:21:42,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 18:21:42,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 18:21:42,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 18:21:42,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 18:21:42,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e6bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42, skipping insertion in model container [2024-10-12 18:21:42,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 18:21:42,740 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i[22605,22618] [2024-10-12 18:21:42,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:21:42,766 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 18:21:42,812 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-1.i[22605,22618] [2024-10-12 18:21:42,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:21:42,851 INFO L204 MainTranslator]: Completed translation [2024-10-12 18:21:42,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42 WrapperNode [2024-10-12 18:21:42,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 18:21:42,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 18:21:42,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 18:21:42,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 18:21:42,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,918 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 111 [2024-10-12 18:21:42,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 18:21:42,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 18:21:42,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 18:21:42,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 18:21:42,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,979 INFO L175 MemorySlicer]: Split 22 memory accesses to 2 slices as follows [2, 20]. 91 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 10 writes are split as follows [0, 10]. [2024-10-12 18:21:42,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:42,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 18:21:43,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 18:21:43,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 18:21:43,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 18:21:43,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (1/1) ... [2024-10-12 18:21:43,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:21:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:21:43,061 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) [2024-10-12 18:21:43,066 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 [2024-10-12 18:21:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-12 18:21:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-12 18:21:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-12 18:21:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 18:21:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 18:21:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 18:21:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 18:21:43,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 18:21:43,272 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 18:21:43,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 18:21:43,487 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-12 18:21:43,488 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 18:21:43,517 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 18:21:43,517 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-12 18:21:43,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:21:43 BoogieIcfgContainer [2024-10-12 18:21:43,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 18:21:43,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 18:21:43,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 18:21:43,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 18:21:43,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:21:42" (1/3) ... [2024-10-12 18:21:43,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e1118b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:21:43, skipping insertion in model container [2024-10-12 18:21:43,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:21:42" (2/3) ... [2024-10-12 18:21:43,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e1118b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:21:43, skipping insertion in model container [2024-10-12 18:21:43,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:21:43" (3/3) ... [2024-10-12 18:21:43,532 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-1.i [2024-10-12 18:21:43,549 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 18:21:43,549 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 18:21:43,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 18:21:43,615 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;@301908ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 18:21:43,615 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 18:21:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 18:21:43,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:43,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:43,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:43,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:43,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1382217118, now seen corresponding path program 1 times [2024-10-12 18:21:43,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733535183] [2024-10-12 18:21:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:43,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:43,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:43,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733535183] [2024-10-12 18:21:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733535183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:21:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:21:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 18:21:43,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753502428] [2024-10-12 18:21:43,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:21:43,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 18:21:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 18:21:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 18:21:43,898 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 22 states have internal predecessors, (38), 0 states have call successors, (0), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:43,920 INFO L93 Difference]: Finished difference Result 42 states and 69 transitions. [2024-10-12 18:21:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 18:21:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-12 18:21:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:43,931 INFO L225 Difference]: With dead ends: 42 [2024-10-12 18:21:43,931 INFO L226 Difference]: Without dead ends: 18 [2024-10-12 18:21:43,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 18:21:43,938 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:43,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:21:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-10-12 18:21:43,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-12 18:21:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-10-12 18:21:43,971 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2024-10-12 18:21:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:43,972 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-10-12 18:21:43,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-10-12 18:21:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 18:21:43,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:43,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:43,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 18:21:43,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:43,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -595930072, now seen corresponding path program 1 times [2024-10-12 18:21:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471800696] [2024-10-12 18:21:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:44,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:44,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471800696] [2024-10-12 18:21:44,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471800696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:21:44,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:21:44,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:21:44,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286223564] [2024-10-12 18:21:44,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:21:44,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 18:21:44,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:44,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 18:21:44,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:21:44,738 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2024-10-12 18:21:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:44,990 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2024-10-12 18:21:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 18:21:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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 [2024-10-12 18:21:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:44,993 INFO L225 Difference]: With dead ends: 50 [2024-10-12 18:21:44,993 INFO L226 Difference]: Without dead ends: 48 [2024-10-12 18:21:44,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-12 18:21:44,995 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:44,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 60 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 18:21:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-12 18:21:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 28. [2024-10-12 18:21:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-10-12 18:21:45,005 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 12 [2024-10-12 18:21:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:45,005 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-10-12 18:21:45,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 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) [2024-10-12 18:21:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-10-12 18:21:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 18:21:45,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:45,007 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:45,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 18:21:45,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:45,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:45,009 INFO L85 PathProgramCache]: Analyzing trace with hash 44979405, now seen corresponding path program 1 times [2024-10-12 18:21:45,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:45,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342289043] [2024-10-12 18:21:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:45,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:45,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342289043] [2024-10-12 18:21:45,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342289043] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:21:45,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035114471] [2024-10-12 18:21:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:45,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:21:45,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:21:45,478 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) [2024-10-12 18:21:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 18:21:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:45,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 18:21:45,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:21:45,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2024-10-12 18:21:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:45,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 18:21:45,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035114471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:21:45,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 18:21:45,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-12 18:21:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861809942] [2024-10-12 18:21:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:21:45,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:21:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:45,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:21:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 18:21:45,712 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:45,806 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2024-10-12 18:21:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:21:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-10-12 18:21:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:45,808 INFO L225 Difference]: With dead ends: 45 [2024-10-12 18:21:45,808 INFO L226 Difference]: Without dead ends: 37 [2024-10-12 18:21:45,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-12 18:21:45,809 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:45,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 58 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:21:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-12 18:21:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2024-10-12 18:21:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-10-12 18:21:45,820 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2024-10-12 18:21:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:45,820 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-10-12 18:21:45,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-10-12 18:21:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 18:21:45,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:45,822 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:45,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 18:21:46,026 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 [2024-10-12 18:21:46,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:46,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1025516125, now seen corresponding path program 1 times [2024-10-12 18:21:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:46,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179257873] [2024-10-12 18:21:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:46,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:46,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179257873] [2024-10-12 18:21:46,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179257873] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:21:46,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931581506] [2024-10-12 18:21:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:46,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:21:46,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:21:46,593 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) [2024-10-12 18:21:46,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 18:21:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:46,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-10-12 18:21:46,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:21:46,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-12 18:21:46,740 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 [2024-10-12 18:21:46,812 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 35 treesize of output 18 [2024-10-12 18:21:46,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:21:46,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2024-10-12 18:21:46,828 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 0 case distinctions, treesize of input 17 treesize of output 17 [2024-10-12 18:21:47,008 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-12 18:21:47,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-10-12 18:21:47,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-12 18:21:47,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-12 18:21:47,052 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-10-12 18:21:47,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-10-12 18:21:47,146 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 27 treesize of output 15 [2024-10-12 18:21:47,156 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 [2024-10-12 18:21:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:47,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:21:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:47,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931581506] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:21:47,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:21:47,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-10-12 18:21:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584339930] [2024-10-12 18:21:47,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:21:47,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 18:21:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 18:21:47,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=196, Unknown=1, NotChecked=0, Total=240 [2024-10-12 18:21:47,387 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 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) [2024-10-12 18:21:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:47,827 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2024-10-12 18:21:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 18:21:47,828 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-12 18:21:47,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:47,829 INFO L225 Difference]: With dead ends: 67 [2024-10-12 18:21:47,829 INFO L226 Difference]: Without dead ends: 65 [2024-10-12 18:21:47,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=393, Unknown=1, NotChecked=0, Total=506 [2024-10-12 18:21:47,831 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 156 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:47,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 103 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 18:21:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-12 18:21:47,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 35. [2024-10-12 18:21:47,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:47,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-10-12 18:21:47,840 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 14 [2024-10-12 18:21:47,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:47,840 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-10-12 18:21:47,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 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) [2024-10-12 18:21:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-10-12 18:21:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-12 18:21:47,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:47,841 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:47,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 18:21:48,045 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 [2024-10-12 18:21:48,046 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:48,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2060085123, now seen corresponding path program 1 times [2024-10-12 18:21:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:48,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916372995] [2024-10-12 18:21:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:48,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:48,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916372995] [2024-10-12 18:21:48,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916372995] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:21:48,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829662998] [2024-10-12 18:21:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:48,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:21:48,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:21:48,380 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) [2024-10-12 18:21:48,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 18:21:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:48,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-12 18:21:48,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:21:48,493 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 [2024-10-12 18:21:48,505 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 18 treesize of output 7 [2024-10-12 18:21:48,513 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 18 treesize of output 7 [2024-10-12 18:21:48,579 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 9 treesize of output 12 [2024-10-12 18:21:48,597 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-10-12 18:21:48,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-10-12 18:21:48,620 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-12 18:21:48,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-10-12 18:21:48,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2024-10-12 18:21:48,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-12 18:21:48,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:48,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:21:48,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:48,887 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 27 treesize of output 31 [2024-10-12 18:21:48,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:48,897 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 24 treesize of output 28 [2024-10-12 18:21:48,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-10-12 18:21:48,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-10-12 18:21:49,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:49,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829662998] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:21:49,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:21:49,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-12 18:21:49,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675610491] [2024-10-12 18:21:49,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:21:49,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 18:21:49,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 18:21:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-12 18:21:49,086 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 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) [2024-10-12 18:21:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:49,459 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2024-10-12 18:21:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 18:21:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-12 18:21:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:49,461 INFO L225 Difference]: With dead ends: 76 [2024-10-12 18:21:49,461 INFO L226 Difference]: Without dead ends: 61 [2024-10-12 18:21:49,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-10-12 18:21:49,464 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 100 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:49,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 143 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 18:21:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-12 18:21:49,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 45. [2024-10-12 18:21:49,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 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) [2024-10-12 18:21:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2024-10-12 18:21:49,478 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 15 [2024-10-12 18:21:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:49,479 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-10-12 18:21:49,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 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) [2024-10-12 18:21:49,479 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2024-10-12 18:21:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-12 18:21:49,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:49,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:49,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 18:21:49,680 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 [2024-10-12 18:21:49,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:49,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:49,683 INFO L85 PathProgramCache]: Analyzing trace with hash -554021459, now seen corresponding path program 1 times [2024-10-12 18:21:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:49,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756666140] [2024-10-12 18:21:49,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:49,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:49,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:49,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756666140] [2024-10-12 18:21:49,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756666140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:21:49,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:21:49,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:21:49,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376840887] [2024-10-12 18:21:49,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:21:49,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:21:49,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:21:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:21:49,908 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:50,034 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2024-10-12 18:21:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:21:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-12 18:21:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:50,036 INFO L225 Difference]: With dead ends: 71 [2024-10-12 18:21:50,037 INFO L226 Difference]: Without dead ends: 64 [2024-10-12 18:21:50,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:21:50,038 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 42 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:50,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 73 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:21:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-12 18:21:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 45. [2024-10-12 18:21:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 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) [2024-10-12 18:21:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2024-10-12 18:21:50,053 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 15 [2024-10-12 18:21:50,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:50,053 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2024-10-12 18:21:50,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2024-10-12 18:21:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 18:21:50,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:50,055 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:50,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 18:21:50,055 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:50,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:50,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1664450834, now seen corresponding path program 1 times [2024-10-12 18:21:50,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:50,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420129153] [2024-10-12 18:21:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:50,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420129153] [2024-10-12 18:21:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420129153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:21:50,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:21:50,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:21:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848068990] [2024-10-12 18:21:50,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:21:50,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:21:50,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:21:50,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:21:50,199 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:21:50,288 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2024-10-12 18:21:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:21:50,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-10-12 18:21:50,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:21:50,290 INFO L225 Difference]: With dead ends: 65 [2024-10-12 18:21:50,290 INFO L226 Difference]: Without dead ends: 53 [2024-10-12 18:21:50,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-12 18:21:50,291 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:21:50,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:21:50,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-12 18:21:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2024-10-12 18:21:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2024-10-12 18:21:50,299 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 17 [2024-10-12 18:21:50,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:21:50,299 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-10-12 18:21:50,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:21:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2024-10-12 18:21:50,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 18:21:50,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:21:50,300 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:21:50,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 18:21:50,301 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:21:50,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:21:50,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1030445016, now seen corresponding path program 1 times [2024-10-12 18:21:50,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:21:50,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344975316] [2024-10-12 18:21:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:50,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:21:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:50,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:21:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344975316] [2024-10-12 18:21:50,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344975316] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:21:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231388751] [2024-10-12 18:21:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:21:50,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:21:50,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:21:50,945 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) [2024-10-12 18:21:50,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 18:21:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:21:51,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-10-12 18:21:51,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:21:51,064 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 [2024-10-12 18:21:51,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-10-12 18:21:51,116 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-12 18:21:51,117 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 90 treesize of output 79 [2024-10-12 18:21:51,121 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 0 case distinctions, treesize of input 24 treesize of output 24 [2024-10-12 18:21:51,133 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2024-10-12 18:21:51,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2024-10-12 18:21:51,144 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 30 treesize of output 11 [2024-10-12 18:21:51,165 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-10-12 18:21:51,165 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 25 treesize of output 29 [2024-10-12 18:21:51,255 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 9 treesize of output 12 [2024-10-12 18:21:51,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:21:51,287 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 53 treesize of output 36 [2024-10-12 18:21:51,305 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-10-12 18:21:51,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2024-10-12 18:21:51,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:21:51,321 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-10-12 18:21:51,321 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 1 case distinctions, treesize of input 28 treesize of output 22 [2024-10-12 18:21:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:21:51,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2024-10-12 18:21:51,336 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-12 18:21:51,534 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-12 18:21:51,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 33 [2024-10-12 18:21:51,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-12 18:21:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:51,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:21:51,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2024-10-12 18:21:51,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,675 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 30 treesize of output 34 [2024-10-12 18:21:51,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2024-10-12 18:21:51,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,839 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 258 treesize of output 213 [2024-10-12 18:21:51,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 149 [2024-10-12 18:21:51,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,876 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 959 treesize of output 934 [2024-10-12 18:21:51,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 741 treesize of output 771 [2024-10-12 18:21:51,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:51,994 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 345 treesize of output 335 [2024-10-12 18:21:52,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:52,055 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 361 treesize of output 337 [2024-10-12 18:21:52,084 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 298 treesize of output 290 [2024-10-12 18:21:52,106 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 321 treesize of output 303 [2024-10-12 18:21:52,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:52,174 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 302 treesize of output 295 [2024-10-12 18:21:53,724 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 [2024-10-12 18:21:54,313 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 [2024-10-12 18:21:54,610 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 [2024-10-12 18:21:54,618 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 [2024-10-12 18:21:54,920 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 [2024-10-12 18:21:58,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:21:58,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 204 [2024-10-12 18:21:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:21:59,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231388751] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:21:59,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:21:59,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-10-12 18:21:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344855073] [2024-10-12 18:21:59,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:21:59,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-12 18:21:59,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:21:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-12 18:21:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-10-12 18:21:59,476 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:22:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:22:00,032 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2024-10-12 18:22:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 18:22:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 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 [2024-10-12 18:22:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:22:00,033 INFO L225 Difference]: With dead ends: 73 [2024-10-12 18:22:00,033 INFO L226 Difference]: Without dead ends: 71 [2024-10-12 18:22:00,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=639, Unknown=0, NotChecked=0, Total=756 [2024-10-12 18:22:00,034 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 118 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 18:22:00,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 207 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 18:22:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-12 18:22:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 49. [2024-10-12 18:22:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 48 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) [2024-10-12 18:22:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2024-10-12 18:22:00,043 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 17 [2024-10-12 18:22:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:22:00,043 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2024-10-12 18:22:00,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:22:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2024-10-12 18:22:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-12 18:22:00,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:22:00,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:22:00,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 18:22:00,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:22:00,248 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:22:00,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:22:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1575510299, now seen corresponding path program 1 times [2024-10-12 18:22:00,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:22:00,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639173832] [2024-10-12 18:22:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:22:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:22:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:22:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 18:22:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:22:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639173832] [2024-10-12 18:22:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639173832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:22:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:22:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:22:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031816615] [2024-10-12 18:22:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:22:00,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:22:00,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:22:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:22:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:22:00,362 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:22:00,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:22:00,446 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2024-10-12 18:22:00,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:22:00,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-10-12 18:22:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:22:00,448 INFO L225 Difference]: With dead ends: 62 [2024-10-12 18:22:00,448 INFO L226 Difference]: Without dead ends: 37 [2024-10-12 18:22:00,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:22:00,449 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:22:00,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:22:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-12 18:22:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-12 18:22:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:22:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2024-10-12 18:22:00,464 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 20 [2024-10-12 18:22:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:22:00,464 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2024-10-12 18:22:00,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:22:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2024-10-12 18:22:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-12 18:22:00,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:22:00,465 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:22:00,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 18:22:00,465 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 18:22:00,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:22:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1838148733, now seen corresponding path program 2 times [2024-10-12 18:22:00,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:22:00,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854396492] [2024-10-12 18:22:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:22:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:22:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:22:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:22:00,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:22:00,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854396492] [2024-10-12 18:22:00,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854396492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:22:00,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472637456] [2024-10-12 18:22:00,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 18:22:00,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:22:00,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:22:00,986 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) [2024-10-12 18:22:00,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 18:22:01,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 18:22:01,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 18:22:01,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-10-12 18:22:01,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:22:01,126 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 [2024-10-12 18:22:01,167 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 0 case distinctions, treesize of input 17 treesize of output 17 [2024-10-12 18:22:01,172 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 0 case distinctions, treesize of input 17 treesize of output 17 [2024-10-12 18:22:01,182 INFO L349 Elim1Store]: treesize reduction 18, result has 21.7 percent of original size [2024-10-12 18:22:01,182 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 46 treesize of output 45 [2024-10-12 18:22:01,193 INFO L349 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2024-10-12 18:22:01,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 31 [2024-10-12 18:22:01,199 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 12 treesize of output 11 [2024-10-12 18:22:01,214 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-10-12 18:22:01,214 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 25 treesize of output 29 [2024-10-12 18:22:01,225 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 12 treesize of output 11 [2024-10-12 18:22:01,303 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 0 case distinctions, treesize of input 9 treesize of output 12 [2024-10-12 18:22:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:22:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:22:01,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2024-10-12 18:22:01,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:22:01,327 INFO L349 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2024-10-12 18:22:01,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 51 [2024-10-12 18:22:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 18:22:01,341 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-10-12 18:22:01,341 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 1 case distinctions, treesize of input 28 treesize of output 22 [2024-10-12 18:22:01,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-10-12 18:22:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:22:01,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:22:01,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:01,645 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 67 treesize of output 65 [2024-10-12 18:22:01,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:01,649 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 58 treesize of output 56 [2024-10-12 18:22:01,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:01,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 162 [2024-10-12 18:22:01,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:01,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 170 [2024-10-12 18:22:01,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:01,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 905 treesize of output 778 [2024-10-12 18:22:02,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:02,012 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 699 treesize of output 685 [2024-10-12 18:22:02,067 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:02,068 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 821 treesize of output 805 [2024-10-12 18:22:03,911 INFO L349 Elim1Store]: treesize reduction 341, result has 76.3 percent of original size [2024-10-12 18:22:03,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 17 new quantified variables, introduced 105 case distinctions, treesize of input 7177 treesize of output 7488 [2024-10-12 18:22:04,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:04,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 2120 treesize of output 2088 [2024-10-12 18:22:05,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:05,862 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 1368 treesize of output 1326 [2024-10-12 18:22:06,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:06,333 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 1119 treesize of output 1053 [2024-10-12 18:22:06,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 18:22:06,548 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 1314 treesize of output 1280