./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardness-nfm22/hardness_operatoramount_amount250_file-3.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 c1488e8cfb75b9dc5828151c610bf861156ee926465c8d7b38aa1fb193fa6e77 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 23:41:57,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 23:41:57,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 23:41:57,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 23:41:57,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 23:41:57,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 23:41:57,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 23:41:57,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 23:41:57,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 23:41:57,981 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 23:41:57,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 23:41:57,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 23:41:57,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 23:41:57,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 23:41:57,982 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 23:41:57,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 23:41:57,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 23:41:57,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 23:41:57,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 23:41:57,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 23:41:57,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 23:41:57,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 23:41:57,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 23:41:57,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 23:41:57,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 23:41:57,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 23:41:57,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 23:41:57,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 23:41:57,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 23:41:57,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 23:41:57,988 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 23:41:57,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 23:41:57,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:41:57,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 23:41:57,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 23:41:57,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 23:41:57,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 23:41:57,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 23:41:57,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 23:41:57,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 23:41:57,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 23:41:57,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 23:41:57,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1488e8cfb75b9dc5828151c610bf861156ee926465c8d7b38aa1fb193fa6e77 [2024-11-18 23:41:58,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 23:41:58,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 23:41:58,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 23:41:58,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 23:41:58,373 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 23:41:58,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2024-11-18 23:41:59,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 23:41:59,891 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 23:41:59,892 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-3.i [2024-11-18 23:41:59,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ad21f1f5/36e128a583d84f27b47aa28a9fa208c3/FLAG5635b5b69 [2024-11-18 23:41:59,911 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ad21f1f5/36e128a583d84f27b47aa28a9fa208c3 [2024-11-18 23:41:59,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 23:41:59,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 23:41:59,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 23:41:59,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 23:41:59,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 23:41:59,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:41:59" (1/1) ... [2024-11-18 23:41:59,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa94ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:41:59, skipping insertion in model container [2024-11-18 23:41:59,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:41:59" (1/1) ... [2024-11-18 23:41:59,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 23:42:00,115 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/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2024-11-18 23:42:00,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:42:00,228 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 23:42:00,238 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/hardness-nfm22/hardness_operatoramount_amount250_file-3.i[915,928] [2024-11-18 23:42:00,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 23:42:00,352 INFO L204 MainTranslator]: Completed translation [2024-11-18 23:42:00,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00 WrapperNode [2024-11-18 23:42:00,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 23:42:00,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 23:42:00,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 23:42:00,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 23:42:00,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,416 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 488 [2024-11-18 23:42:00,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 23:42:00,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 23:42:00,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 23:42:00,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 23:42:00,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,452 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 23:42:00,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 23:42:00,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 23:42:00,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 23:42:00,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 23:42:00,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (1/1) ... [2024-11-18 23:42:00,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 23:42:00,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:42:00,531 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) [2024-11-18 23:42:00,538 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 [2024-11-18 23:42:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 23:42:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 23:42:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 23:42:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 23:42:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 23:42:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 23:42:00,713 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 23:42:00,714 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 23:42:01,446 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-18 23:42:01,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 23:42:01,467 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 23:42:01,467 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 23:42:01,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:01 BoogieIcfgContainer [2024-11-18 23:42:01,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 23:42:01,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 23:42:01,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 23:42:01,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 23:42:01,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:41:59" (1/3) ... [2024-11-18 23:42:01,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:01, skipping insertion in model container [2024-11-18 23:42:01,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:42:00" (2/3) ... [2024-11-18 23:42:01,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:42:01, skipping insertion in model container [2024-11-18 23:42:01,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:42:01" (3/3) ... [2024-11-18 23:42:01,474 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-3.i [2024-11-18 23:42:01,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 23:42:01,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 23:42:01,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 23:42:01,559 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;@2b8d927c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 23:42:01,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 23:42:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 151 states have internal predecessors, (224), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 23:42:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-18 23:42:01,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:01,593 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:01,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:01,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:01,602 INFO L85 PathProgramCache]: Analyzing trace with hash -321379115, now seen corresponding path program 1 times [2024-11-18 23:42:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82440001] [2024-11-18 23:42:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2024-11-18 23:42:02,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:02,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82440001] [2024-11-18 23:42:02,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82440001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:42:02,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955903126] [2024-11-18 23:42:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:02,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:42:02,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:42:02,163 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) [2024-11-18 23:42:02,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 23:42:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:02,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 23:42:02,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:42:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2024-11-18 23:42:02,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 23:42:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955903126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:02,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 23:42:02,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 23:42:02,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306158471] [2024-11-18 23:42:02,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:02,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 23:42:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:02,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 23:42:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:42:02,522 INFO L87 Difference]: Start difference. First operand has 209 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 151 states have internal predecessors, (224), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:02,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:02,577 INFO L93 Difference]: Finished difference Result 411 states and 722 transitions. [2024-11-18 23:42:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 23:42:02,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) Word has length 372 [2024-11-18 23:42:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:02,588 INFO L225 Difference]: With dead ends: 411 [2024-11-18 23:42:02,589 INFO L226 Difference]: Without dead ends: 205 [2024-11-18 23:42:02,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 23:42:02,595 INFO L432 NwaCegarLoop]: 328 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, 328 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 [2024-11-18 23:42:02,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 23:42:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-18 23:42:02,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-18 23:42:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 147 states have (on average 1.469387755102041) internal successors, (216), 147 states have internal predecessors, (216), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 23:42:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 328 transitions. [2024-11-18 23:42:02,662 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 328 transitions. Word has length 372 [2024-11-18 23:42:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:02,663 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 328 transitions. [2024-11-18 23:42:02,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 328 transitions. [2024-11-18 23:42:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-18 23:42:02,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:02,675 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:02,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 23:42:02,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 23:42:02,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:02,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:02,878 INFO L85 PathProgramCache]: Analyzing trace with hash -19291631, now seen corresponding path program 1 times [2024-11-18 23:42:02,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:02,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839220534] [2024-11-18 23:42:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:02,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:03,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:03,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839220534] [2024-11-18 23:42:03,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839220534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:03,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:03,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 23:42:03,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601477615] [2024-11-18 23:42:03,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:03,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 23:42:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 23:42:03,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:42:03,522 INFO L87 Difference]: Start difference. First operand 205 states and 328 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:03,801 INFO L93 Difference]: Finished difference Result 594 states and 946 transitions. [2024-11-18 23:42:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 23:42:03,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 372 [2024-11-18 23:42:03,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:03,809 INFO L225 Difference]: With dead ends: 594 [2024-11-18 23:42:03,811 INFO L226 Difference]: Without dead ends: 392 [2024-11-18 23:42:03,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:42:03,814 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 387 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:03,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1262 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:42:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-18 23:42:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 386. [2024-11-18 23:42:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 310 states have (on average 1.5225806451612902) internal successors, (472), 312 states have internal predecessors, (472), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-18 23:42:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 616 transitions. [2024-11-18 23:42:03,856 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 616 transitions. Word has length 372 [2024-11-18 23:42:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:03,858 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 616 transitions. [2024-11-18 23:42:03,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 616 transitions. [2024-11-18 23:42:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-18 23:42:03,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:03,864 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:03,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 23:42:03,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:03,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:03,866 INFO L85 PathProgramCache]: Analyzing trace with hash 812835601, now seen corresponding path program 1 times [2024-11-18 23:42:03,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:03,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975644050] [2024-11-18 23:42:03,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:03,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:05,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:05,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975644050] [2024-11-18 23:42:05,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975644050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:05,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:05,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 23:42:05,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955125375] [2024-11-18 23:42:05,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:05,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 23:42:05,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:05,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 23:42:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 23:42:05,172 INFO L87 Difference]: Start difference. First operand 386 states and 616 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:05,395 INFO L93 Difference]: Finished difference Result 1080 states and 1722 transitions. [2024-11-18 23:42:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 23:42:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 372 [2024-11-18 23:42:05,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:05,403 INFO L225 Difference]: With dead ends: 1080 [2024-11-18 23:42:05,404 INFO L226 Difference]: Without dead ends: 697 [2024-11-18 23:42:05,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:42:05,406 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 205 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:05,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 860 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:42:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-18 23:42:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 694. [2024-11-18 23:42:05,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 579 states have (on average 1.53713298791019) internal successors, (890), 584 states have internal predecessors, (890), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 103 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-18 23:42:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1106 transitions. [2024-11-18 23:42:05,473 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1106 transitions. Word has length 372 [2024-11-18 23:42:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:05,475 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1106 transitions. [2024-11-18 23:42:05,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1106 transitions. [2024-11-18 23:42:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 23:42:05,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:05,479 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:05,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 23:42:05,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:05,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:05,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1704580880, now seen corresponding path program 1 times [2024-11-18 23:42:05,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:05,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748404054] [2024-11-18 23:42:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:05,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:05,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748404054] [2024-11-18 23:42:05,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748404054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:05,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:05,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 23:42:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265447433] [2024-11-18 23:42:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:06,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 23:42:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 23:42:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 23:42:06,003 INFO L87 Difference]: Start difference. First operand 694 states and 1106 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:07,066 INFO L93 Difference]: Finished difference Result 3324 states and 5260 transitions. [2024-11-18 23:42:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 23:42:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 373 [2024-11-18 23:42:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:07,082 INFO L225 Difference]: With dead ends: 3324 [2024-11-18 23:42:07,082 INFO L226 Difference]: Without dead ends: 2633 [2024-11-18 23:42:07,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-18 23:42:07,086 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 2146 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:07,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 1316 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 23:42:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-18 23:42:07,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 1538. [2024-11-18 23:42:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1370 states have (on average 1.5605839416058394) internal successors, (2138), 1384 states have internal predecessors, (2138), 149 states have call successors, (149), 18 states have call predecessors, (149), 18 states have return successors, (149), 135 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-18 23:42:07,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2436 transitions. [2024-11-18 23:42:07,178 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2436 transitions. Word has length 373 [2024-11-18 23:42:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:07,180 INFO L471 AbstractCegarLoop]: Abstraction has 1538 states and 2436 transitions. [2024-11-18 23:42:07,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2436 transitions. [2024-11-18 23:42:07,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 23:42:07,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:07,187 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:07,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 23:42:07,188 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:07,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:07,189 INFO L85 PathProgramCache]: Analyzing trace with hash -318377486, now seen corresponding path program 1 times [2024-11-18 23:42:07,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:07,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966707833] [2024-11-18 23:42:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:07,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:07,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966707833] [2024-11-18 23:42:07,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966707833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:07,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:07,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 23:42:07,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915691768] [2024-11-18 23:42:07,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:07,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 23:42:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:07,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 23:42:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:42:07,852 INFO L87 Difference]: Start difference. First operand 1538 states and 2436 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:08,246 INFO L93 Difference]: Finished difference Result 5632 states and 8915 transitions. [2024-11-18 23:42:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 23:42:08,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 373 [2024-11-18 23:42:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:08,260 INFO L225 Difference]: With dead ends: 5632 [2024-11-18 23:42:08,260 INFO L226 Difference]: Without dead ends: 4097 [2024-11-18 23:42:08,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:42:08,263 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 408 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:08,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1611 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:42:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2024-11-18 23:42:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 3215. [2024-11-18 23:42:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 2941 states have (on average 1.5725943556613398) internal successors, (4625), 2967 states have internal predecessors, (4625), 243 states have call successors, (243), 30 states have call predecessors, (243), 30 states have return successors, (243), 217 states have call predecessors, (243), 243 states have call successors, (243) [2024-11-18 23:42:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5111 transitions. [2024-11-18 23:42:08,366 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5111 transitions. Word has length 373 [2024-11-18 23:42:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:08,367 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5111 transitions. [2024-11-18 23:42:08,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5111 transitions. [2024-11-18 23:42:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 23:42:08,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:08,373 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:08,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 23:42:08,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:08,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:08,373 INFO L85 PathProgramCache]: Analyzing trace with hash 561800306, now seen corresponding path program 1 times [2024-11-18 23:42:08,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:08,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023998035] [2024-11-18 23:42:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:08,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:08,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:08,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023998035] [2024-11-18 23:42:08,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023998035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:08,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:08,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 23:42:08,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492289899] [2024-11-18 23:42:08,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:08,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 23:42:08,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:08,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 23:42:08,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 23:42:08,806 INFO L87 Difference]: Start difference. First operand 3215 states and 5111 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-18 23:42:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:09,870 INFO L93 Difference]: Finished difference Result 6625 states and 10470 transitions. [2024-11-18 23:42:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 23:42:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 373 [2024-11-18 23:42:09,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:09,881 INFO L225 Difference]: With dead ends: 6625 [2024-11-18 23:42:09,881 INFO L226 Difference]: Without dead ends: 3413 [2024-11-18 23:42:09,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-18 23:42:09,885 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1759 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:09,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 1492 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 23:42:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2024-11-18 23:42:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 2714. [2024-11-18 23:42:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2459 states have (on average 1.5640504270028466) internal successors, (3846), 2479 states have internal predecessors, (3846), 219 states have call successors, (219), 35 states have call predecessors, (219), 35 states have return successors, (219), 199 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-18 23:42:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 4284 transitions. [2024-11-18 23:42:09,972 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 4284 transitions. Word has length 373 [2024-11-18 23:42:09,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:09,972 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 4284 transitions. [2024-11-18 23:42:09,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-18 23:42:09,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 4284 transitions. [2024-11-18 23:42:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 23:42:09,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:09,978 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:09,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 23:42:09,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:09,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1749638030, now seen corresponding path program 1 times [2024-11-18 23:42:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:09,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814133162] [2024-11-18 23:42:09,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:10,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:10,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:10,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814133162] [2024-11-18 23:42:10,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814133162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:10,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:10,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 23:42:10,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35020176] [2024-11-18 23:42:10,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:10,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 23:42:10,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 23:42:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:42:10,218 INFO L87 Difference]: Start difference. First operand 2714 states and 4284 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:10,877 INFO L93 Difference]: Finished difference Result 11012 states and 17035 transitions. [2024-11-18 23:42:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 23:42:10,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 373 [2024-11-18 23:42:10,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:10,905 INFO L225 Difference]: With dead ends: 11012 [2024-11-18 23:42:10,905 INFO L226 Difference]: Without dead ends: 8301 [2024-11-18 23:42:10,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-18 23:42:10,914 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 837 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:10,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1979 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 23:42:10,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8301 states. [2024-11-18 23:42:11,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8301 to 3295. [2024-11-18 23:42:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 3040 states have (on average 1.5789473684210527) internal successors, (4800), 3060 states have internal predecessors, (4800), 219 states have call successors, (219), 35 states have call predecessors, (219), 35 states have return successors, (219), 199 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-18 23:42:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 5238 transitions. [2024-11-18 23:42:11,085 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 5238 transitions. Word has length 373 [2024-11-18 23:42:11,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:11,085 INFO L471 AbstractCegarLoop]: Abstraction has 3295 states and 5238 transitions. [2024-11-18 23:42:11,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:11,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 5238 transitions. [2024-11-18 23:42:11,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-18 23:42:11,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:11,091 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:11,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 23:42:11,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:11,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:11,092 INFO L85 PathProgramCache]: Analyzing trace with hash 739890932, now seen corresponding path program 1 times [2024-11-18 23:42:11,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:11,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490660403] [2024-11-18 23:42:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:11,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:11,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:11,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490660403] [2024-11-18 23:42:11,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490660403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:11,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:11,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 23:42:11,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779840877] [2024-11-18 23:42:11,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:11,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 23:42:11,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:11,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 23:42:11,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 23:42:11,525 INFO L87 Difference]: Start difference. First operand 3295 states and 5238 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:11,896 INFO L93 Difference]: Finished difference Result 7485 states and 11838 transitions. [2024-11-18 23:42:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 23:42:11,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 373 [2024-11-18 23:42:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:11,909 INFO L225 Difference]: With dead ends: 7485 [2024-11-18 23:42:11,910 INFO L226 Difference]: Without dead ends: 4193 [2024-11-18 23:42:11,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-18 23:42:11,915 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 554 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:11,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1221 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 23:42:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2024-11-18 23:42:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3305. [2024-11-18 23:42:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3045 states have (on average 1.5779967159277504) internal successors, (4805), 3065 states have internal predecessors, (4805), 223 states have call successors, (223), 36 states have call predecessors, (223), 36 states have return successors, (223), 203 states have call predecessors, (223), 223 states have call successors, (223) [2024-11-18 23:42:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 5251 transitions. [2024-11-18 23:42:12,028 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 5251 transitions. Word has length 373 [2024-11-18 23:42:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:12,029 INFO L471 AbstractCegarLoop]: Abstraction has 3305 states and 5251 transitions. [2024-11-18 23:42:12,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2024-11-18 23:42:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 5251 transitions. [2024-11-18 23:42:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-18 23:42:12,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:12,034 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:12,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 23:42:12,034 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:12,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash -712115695, now seen corresponding path program 1 times [2024-11-18 23:42:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044163232] [2024-11-18 23:42:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 27 proven. 138 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2024-11-18 23:42:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044163232] [2024-11-18 23:42:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044163232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:42:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242578646] [2024-11-18 23:42:12,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:12,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:42:12,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:42:12,661 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) [2024-11-18 23:42:12,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 23:42:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:12,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 23:42:12,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:42:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3102 proven. 105 refuted. 0 times theorem prover too weak. 2953 trivial. 0 not checked. [2024-11-18 23:42:13,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 23:42:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 60 proven. 105 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2024-11-18 23:42:14,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242578646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 23:42:14,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 23:42:14,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 26 [2024-11-18 23:42:14,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996585173] [2024-11-18 23:42:14,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 23:42:14,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-18 23:42:14,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:14,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-18 23:42:14,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2024-11-18 23:42:14,629 INFO L87 Difference]: Start difference. First operand 3305 states and 5251 transitions. Second operand has 26 states, 25 states have (on average 8.36) internal successors, (209), 26 states have internal predecessors, (209), 6 states have call successors, (162), 3 states have call predecessors, (162), 6 states have return successors, (162), 5 states have call predecessors, (162), 6 states have call successors, (162) [2024-11-18 23:42:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:19,206 INFO L93 Difference]: Finished difference Result 15976 states and 24696 transitions. [2024-11-18 23:42:19,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-18 23:42:19,211 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 26 states have internal predecessors, (209), 6 states have call successors, (162), 3 states have call predecessors, (162), 6 states have return successors, (162), 5 states have call predecessors, (162), 6 states have call successors, (162) Word has length 374 [2024-11-18 23:42:19,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:19,241 INFO L225 Difference]: With dead ends: 15976 [2024-11-18 23:42:19,241 INFO L226 Difference]: Without dead ends: 12674 [2024-11-18 23:42:19,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3071 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2211, Invalid=7889, Unknown=0, NotChecked=0, Total=10100 [2024-11-18 23:42:19,248 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 8220 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 3241 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8222 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 3241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:19,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8222 Valid, 2775 Invalid, 3988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 3241 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 23:42:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12674 states. [2024-11-18 23:42:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12674 to 4720. [2024-11-18 23:42:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 4500 states have (on average 1.6117777777777778) internal successors, (7253), 4515 states have internal predecessors, (7253), 178 states have call successors, (178), 41 states have call predecessors, (178), 41 states have return successors, (178), 163 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-18 23:42:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 7609 transitions. [2024-11-18 23:42:19,420 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 7609 transitions. Word has length 374 [2024-11-18 23:42:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:19,421 INFO L471 AbstractCegarLoop]: Abstraction has 4720 states and 7609 transitions. [2024-11-18 23:42:19,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.36) internal successors, (209), 26 states have internal predecessors, (209), 6 states have call successors, (162), 3 states have call predecessors, (162), 6 states have return successors, (162), 5 states have call predecessors, (162), 6 states have call successors, (162) [2024-11-18 23:42:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 7609 transitions. [2024-11-18 23:42:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-18 23:42:19,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:19,433 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:19,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 23:42:19,637 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,SelfDestructingSolverStorable8 [2024-11-18 23:42:19,638 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:19,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash -149505518, now seen corresponding path program 1 times [2024-11-18 23:42:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921767876] [2024-11-18 23:42:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-11-18 23:42:20,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:20,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921767876] [2024-11-18 23:42:20,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921767876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 23:42:20,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 23:42:20,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 23:42:20,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930384400] [2024-11-18 23:42:20,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 23:42:20,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 23:42:20,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 23:42:20,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 23:42:20,663 INFO L87 Difference]: Start difference. First operand 4720 states and 7609 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:23,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:23,711 INFO L93 Difference]: Finished difference Result 12288 states and 19688 transitions. [2024-11-18 23:42:23,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 23:42:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 375 [2024-11-18 23:42:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:23,726 INFO L225 Difference]: With dead ends: 12288 [2024-11-18 23:42:23,726 INFO L226 Difference]: Without dead ends: 7571 [2024-11-18 23:42:23,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2024-11-18 23:42:23,733 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 3972 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:23,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3972 Valid, 2063 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 23:42:23,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2024-11-18 23:42:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 5159. [2024-11-18 23:42:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 4923 states have (on average 1.6091813934592727) internal successors, (7922), 4940 states have internal predecessors, (7922), 190 states have call successors, (190), 45 states have call predecessors, (190), 45 states have return successors, (190), 173 states have call predecessors, (190), 190 states have call successors, (190) [2024-11-18 23:42:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 8302 transitions. [2024-11-18 23:42:23,911 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 8302 transitions. Word has length 375 [2024-11-18 23:42:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:23,911 INFO L471 AbstractCegarLoop]: Abstraction has 5159 states and 8302 transitions. [2024-11-18 23:42:23,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 2 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-18 23:42:23,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 8302 transitions. [2024-11-18 23:42:23,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-18 23:42:23,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:23,920 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:23,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 23:42:23,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:23,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:23,921 INFO L85 PathProgramCache]: Analyzing trace with hash -126873264, now seen corresponding path program 1 times [2024-11-18 23:42:23,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:23,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625761834] [2024-11-18 23:42:23,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 27 proven. 138 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2024-11-18 23:42:24,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625761834] [2024-11-18 23:42:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625761834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:42:24,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315456546] [2024-11-18 23:42:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:24,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:42:24,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:42:24,473 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) [2024-11-18 23:42:24,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 23:42:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:24,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-18 23:42:24,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 23:42:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3464 proven. 276 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked. [2024-11-18 23:42:26,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 23:42:26,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 60 proven. 105 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2024-11-18 23:42:26,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315456546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 23:42:26,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 23:42:26,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 11] total 24 [2024-11-18 23:42:26,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069990893] [2024-11-18 23:42:26,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 23:42:26,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 23:42:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 23:42:26,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 23:42:26,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-18 23:42:26,903 INFO L87 Difference]: Start difference. First operand 5159 states and 8302 transitions. Second operand has 24 states, 24 states have (on average 9.125) internal successors, (219), 24 states have internal predecessors, (219), 8 states have call successors, (137), 4 states have call predecessors, (137), 8 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) [2024-11-18 23:42:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 23:42:29,720 INFO L93 Difference]: Finished difference Result 10425 states and 16537 transitions. [2024-11-18 23:42:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-18 23:42:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.125) internal successors, (219), 24 states have internal predecessors, (219), 8 states have call successors, (137), 4 states have call predecessors, (137), 8 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) Word has length 375 [2024-11-18 23:42:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 23:42:29,731 INFO L225 Difference]: With dead ends: 10425 [2024-11-18 23:42:29,731 INFO L226 Difference]: Without dead ends: 5005 [2024-11-18 23:42:29,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1148, Invalid=4254, Unknown=0, NotChecked=0, Total=5402 [2024-11-18 23:42:29,736 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 1835 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 4041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 23:42:29,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 3510 Invalid, 4041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 23:42:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2024-11-18 23:42:29,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 4075. [2024-11-18 23:42:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3744 states have (on average 1.5347222222222223) internal successors, (5746), 3763 states have internal predecessors, (5746), 263 states have call successors, (263), 67 states have call predecessors, (263), 67 states have return successors, (263), 244 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-18 23:42:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 6272 transitions. [2024-11-18 23:42:29,911 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 6272 transitions. Word has length 375 [2024-11-18 23:42:29,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 23:42:29,911 INFO L471 AbstractCegarLoop]: Abstraction has 4075 states and 6272 transitions. [2024-11-18 23:42:29,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.125) internal successors, (219), 24 states have internal predecessors, (219), 8 states have call successors, (137), 4 states have call predecessors, (137), 8 states have return successors, (139), 8 states have call predecessors, (139), 8 states have call successors, (139) [2024-11-18 23:42:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 6272 transitions. [2024-11-18 23:42:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-18 23:42:29,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 23:42:29,917 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 23:42:29,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 23:42:30,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:42:30,122 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 23:42:30,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 23:42:30,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1777210254, now seen corresponding path program 1 times [2024-11-18 23:42:30,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 23:42:30,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788704520] [2024-11-18 23:42:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:30,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 23:42:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 87 proven. 78 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2024-11-18 23:42:30,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 23:42:30,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788704520] [2024-11-18 23:42:30,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788704520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 23:42:30,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785144364] [2024-11-18 23:42:30,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 23:42:30,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 23:42:30,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 23:42:30,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 23:42:30,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 23:42:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 23:42:30,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 23:42:30,922 INFO L278 TraceCheckSpWp]: Computing forward predicates...