./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array22_pattern.c -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 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 02:45:52,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 02:45:52,412 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 02:45:52,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 02:45:52,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 02:45:52,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 02:45:52,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 02:45:52,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 02:45:52,447 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 02:45:52,448 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 02:45:52,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 02:45:52,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 02:45:52,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 02:45:52,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 02:45:52,451 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 02:45:52,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 02:45:52,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 02:45:52,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 02:45:52,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 02:45:52,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 02:45:52,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 02:45:52,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 02:45:52,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 02:45:52,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 02:45:52,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 02:45:52,458 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 02:45:52,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 02:45:52,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 02:45:52,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 02:45:52,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 02:45:52,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 02:45:52,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 02:45:52,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:45:52,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 02:45:52,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 02:45:52,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 02:45:52,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 02:45:52,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 02:45:52,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 02:45:52,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 02:45:52,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 02:45:52,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 02:45:52,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2024-11-16 02:45:52,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 02:45:52,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 02:45:52,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 02:45:52,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 02:45:52,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 02:45:52,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-16 02:45:54,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 02:45:54,288 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 02:45:54,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-16 02:45:54,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5db6a9ef/ebb1ab32a33341d696e883e4f43602b1/FLAG7dfdc378a [2024-11-16 02:45:54,691 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5db6a9ef/ebb1ab32a33341d696e883e4f43602b1 [2024-11-16 02:45:54,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 02:45:54,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 02:45:54,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 02:45:54,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 02:45:54,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 02:45:54,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:45:54" (1/1) ... [2024-11-16 02:45:54,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bbb52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:54, skipping insertion in model container [2024-11-16 02:45:54,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:45:54" (1/1) ... [2024-11-16 02:45:54,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 02:45:54,899 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-11-16 02:45:54,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:45:54,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 02:45:54,978 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-11-16 02:45:54,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 02:45:55,016 INFO L204 MainTranslator]: Completed translation [2024-11-16 02:45:55,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55 WrapperNode [2024-11-16 02:45:55,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 02:45:55,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 02:45:55,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 02:45:55,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 02:45:55,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,052 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2024-11-16 02:45:55,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 02:45:55,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 02:45:55,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 02:45:55,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 02:45:55,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,066 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,077 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-16 02:45:55,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,085 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 02:45:55,093 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 02:45:55,093 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 02:45:55,093 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 02:45:55,094 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (1/1) ... [2024-11-16 02:45:55,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 02:45:55,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:45:55,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 02:45:55,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 02:45:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2024-11-16 02:45:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2024-11-16 02:45:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 02:45:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 02:45:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 02:45:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 02:45:55,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 02:45:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 02:45:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 02:45:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 02:45:55,236 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 02:45:55,238 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 02:45:55,396 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L52: call ULTIMATE.dealloc(main_~#array~0#1.base, main_~#array~0#1.offset);havoc main_~#array~0#1.base, main_~#array~0#1.offset; [2024-11-16 02:45:55,426 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-16 02:45:55,426 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 02:45:55,448 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 02:45:55,448 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 02:45:55,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:45:55 BoogieIcfgContainer [2024-11-16 02:45:55,449 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 02:45:55,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 02:45:55,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 02:45:55,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 02:45:55,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:45:54" (1/3) ... [2024-11-16 02:45:55,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f51cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:45:55, skipping insertion in model container [2024-11-16 02:45:55,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:45:55" (2/3) ... [2024-11-16 02:45:55,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f51cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:45:55, skipping insertion in model container [2024-11-16 02:45:55,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:45:55" (3/3) ... [2024-11-16 02:45:55,464 INFO L112 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2024-11-16 02:45:55,485 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 02:45:55,486 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 02:45:55,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 02:45:55,539 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;@4bb57cf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 02:45:55,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 02:45:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-16 02:45:55,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:55,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:55,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:55,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:55,556 INFO L85 PathProgramCache]: Analyzing trace with hash -520444362, now seen corresponding path program 1 times [2024-11-16 02:45:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:55,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099715843] [2024-11-16 02:45:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:55,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 02:45:55,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:55,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099715843] [2024-11-16 02:45:55,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099715843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:45:55,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:45:55,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 02:45:55,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588283349] [2024-11-16 02:45:55,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:45:55,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 02:45:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:55,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 02:45:55,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:45:55,727 INFO L87 Difference]: Start difference. First operand has 46 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 38 states have internal predecessors, (54), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 02:45:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:55,743 INFO L93 Difference]: Finished difference Result 88 states and 126 transitions. [2024-11-16 02:45:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 02:45:55,745 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-16 02:45:55,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:55,750 INFO L225 Difference]: With dead ends: 88 [2024-11-16 02:45:55,750 INFO L226 Difference]: Without dead ends: 41 [2024-11-16 02:45:55,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 02:45:55,754 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:55,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:45:55,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-16 02:45:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-16 02:45:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-16 02:45:55,786 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2024-11-16 02:45:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:55,787 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-16 02:45:55,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 02:45:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-11-16 02:45:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-16 02:45:55,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:55,789 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:55,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 02:45:55,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:55,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:55,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1221692730, now seen corresponding path program 1 times [2024-11-16 02:45:55,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867886361] [2024-11-16 02:45:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:55,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 02:45:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:45:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 02:45:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 02:45:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-16 02:45:56,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:56,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867886361] [2024-11-16 02:45:56,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867886361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:45:56,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:45:56,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 02:45:56,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750985923] [2024-11-16 02:45:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:45:56,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 02:45:56,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:56,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 02:45:56,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:45:56,210 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:56,245 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2024-11-16 02:45:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 02:45:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-16 02:45:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:56,246 INFO L225 Difference]: With dead ends: 51 [2024-11-16 02:45:56,248 INFO L226 Difference]: Without dead ends: 46 [2024-11-16 02:45:56,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:45:56,249 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 12 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:56,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 120 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:45:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-16 02:45:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-16 02:45:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2024-11-16 02:45:56,261 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 46 [2024-11-16 02:45:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:56,263 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2024-11-16 02:45:56,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2024-11-16 02:45:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 02:45:56,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:56,266 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:56,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 02:45:56,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:56,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1498556446, now seen corresponding path program 1 times [2024-11-16 02:45:56,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:56,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191242866] [2024-11-16 02:45:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:56,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 02:45:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:45:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 02:45:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 02:45:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 02:45:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191242866] [2024-11-16 02:45:56,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191242866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:45:56,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:45:56,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 02:45:56,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661849211] [2024-11-16 02:45:56,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:45:56,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 02:45:56,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:56,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 02:45:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:45:56,474 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:56,605 INFO L93 Difference]: Finished difference Result 98 states and 121 transitions. [2024-11-16 02:45:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 02:45:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2024-11-16 02:45:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:56,607 INFO L225 Difference]: With dead ends: 98 [2024-11-16 02:45:56,607 INFO L226 Difference]: Without dead ends: 59 [2024-11-16 02:45:56,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 02:45:56,608 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 23 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:56,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 126 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:45:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-16 02:45:56,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2024-11-16 02:45:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2024-11-16 02:45:56,620 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 53 [2024-11-16 02:45:56,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:56,621 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2024-11-16 02:45:56,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,621 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2024-11-16 02:45:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 02:45:56,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:56,624 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:56,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 02:45:56,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:56,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:56,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1889815847, now seen corresponding path program 1 times [2024-11-16 02:45:56,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:56,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412563704] [2024-11-16 02:45:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:56,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 02:45:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 02:45:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 02:45:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 02:45:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 02:45:56,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:56,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412563704] [2024-11-16 02:45:56,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412563704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 02:45:56,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 02:45:56,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 02:45:56,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390988180] [2024-11-16 02:45:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 02:45:56,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 02:45:56,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:56,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 02:45:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:45:56,750 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:56,801 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2024-11-16 02:45:56,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 02:45:56,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2024-11-16 02:45:56,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:56,803 INFO L225 Difference]: With dead ends: 97 [2024-11-16 02:45:56,803 INFO L226 Difference]: Without dead ends: 55 [2024-11-16 02:45:56,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 02:45:56,805 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 10 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:56,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 113 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 02:45:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-16 02:45:56,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2024-11-16 02:45:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2024-11-16 02:45:56,814 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 58 [2024-11-16 02:45:56,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:56,816 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2024-11-16 02:45:56,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 02:45:56,817 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2024-11-16 02:45:56,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 02:45:56,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:56,818 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:56,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 02:45:56,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:56,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1125321304, now seen corresponding path program 1 times [2024-11-16 02:45:56,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:56,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138827231] [2024-11-16 02:45:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:56,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:56,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 02:45:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 02:45:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 02:45:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 02:45:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:45:57,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:57,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138827231] [2024-11-16 02:45:57,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138827231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:45:57,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999458464] [2024-11-16 02:45:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:57,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:45:57,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:45:57,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:45:57,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 02:45:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 02:45:57,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:45:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 02:45:57,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:45:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 02:45:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999458464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:45:57,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:45:57,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-16 02:45:57,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028932623] [2024-11-16 02:45:57,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:45:57,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 02:45:57,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:57,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 02:45:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-16 02:45:57,371 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 02:45:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:57,514 INFO L93 Difference]: Finished difference Result 102 states and 124 transitions. [2024-11-16 02:45:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 02:45:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 60 [2024-11-16 02:45:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:57,516 INFO L225 Difference]: With dead ends: 102 [2024-11-16 02:45:57,516 INFO L226 Difference]: Without dead ends: 61 [2024-11-16 02:45:57,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-16 02:45:57,520 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 90 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:57,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 138 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:45:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-16 02:45:57,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2024-11-16 02:45:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2024-11-16 02:45:57,534 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 60 [2024-11-16 02:45:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:57,534 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2024-11-16 02:45:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-16 02:45:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2024-11-16 02:45:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 02:45:57,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:57,536 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:57,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 02:45:57,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:45:57,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 814646200, now seen corresponding path program 2 times [2024-11-16 02:45:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70826831] [2024-11-16 02:45:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:57,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 02:45:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 02:45:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 02:45:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 02:45:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 02:45:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 02:45:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 02:45:57,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 02:45:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70826831] [2024-11-16 02:45:57,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70826831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 02:45:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409662856] [2024-11-16 02:45:57,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 02:45:57,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:45:57,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:45:57,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:45:57,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 02:45:57,974 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 02:45:57,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:45:57,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 02:45:57,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:45:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-16 02:45:58,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 02:45:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 02:45:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409662856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 02:45:58,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 02:45:58,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-16 02:45:58,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416942486] [2024-11-16 02:45:58,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 02:45:58,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 02:45:58,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 02:45:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 02:45:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-16 02:45:58,160 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 02:45:58,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 02:45:58,329 INFO L93 Difference]: Finished difference Result 127 states and 149 transitions. [2024-11-16 02:45:58,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 02:45:58,329 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-16 02:45:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 02:45:58,330 INFO L225 Difference]: With dead ends: 127 [2024-11-16 02:45:58,331 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 02:45:58,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-16 02:45:58,332 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 02:45:58,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 263 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 02:45:58,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 02:45:58,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2024-11-16 02:45:58,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 66 states have internal predecessors, (76), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 02:45:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-11-16 02:45:58,342 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 64 [2024-11-16 02:45:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 02:45:58,342 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-11-16 02:45:58,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 02:45:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-11-16 02:45:58,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 02:45:58,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 02:45:58,344 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 02:45:58,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 02:45:58,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 02:45:58,548 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 02:45:58,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 02:45:58,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1357254714, now seen corresponding path program 3 times [2024-11-16 02:45:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 02:45:58,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272208838] [2024-11-16 02:45:58,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 02:45:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 02:45:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 02:45:58,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648730425] [2024-11-16 02:45:58,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 02:45:58,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 02:45:58,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 02:45:58,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 02:45:58,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 02:46:00,017 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-16 02:46:00,017 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 02:46:00,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-16 02:46:00,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 02:46:00,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-16 02:46:00,241 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 19 treesize of output 18 [2024-11-16 02:46:00,468 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2024-11-16 02:46:00,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2024-11-16 02:46:00,582 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-11-16 02:46:00,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 44 [2024-11-16 02:46:02,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:02,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:02,804 INFO L349 Elim1Store]: treesize reduction 508, result has 25.0 percent of original size [2024-11-16 02:46:02,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 122 treesize of output 220 [2024-11-16 02:46:15,701 INFO L349 Elim1Store]: treesize reduction 252, result has 32.3 percent of original size [2024-11-16 02:46:15,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 511 treesize of output 550 [2024-11-16 02:46:55,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:55,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:56,030 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-16 02:46:56,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 02:46:56,063 INFO L224 Elim1Store]: Index analysis took 164 ms [2024-11-16 02:47:15,504 WARN L286 SmtUtils]: Spent 19.43s on a formula simplification. DAG size of input: 348 DAG size of output: 88 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-16 02:47:15,505 INFO L349 Elim1Store]: treesize reduction 1211, result has 14.2 percent of original size [2024-11-16 02:47:15,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 11 select indices, 11 select index equivalence classes, 11 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 67 case distinctions, treesize of input 1112 treesize of output 1368