./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-34.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 c9b50f113379d6dd32c9227ee2a149aa46425a55ff517b54eccf6b1bc662e210 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 11:39:47,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 11:39:47,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 11:39:47,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 11:39:47,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 11:39:47,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 11:39:47,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 11:39:47,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 11:39:47,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 11:39:47,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 11:39:47,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 11:39:47,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 11:39:47,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 11:39:47,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 11:39:47,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 11:39:47,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 11:39:47,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 11:39:47,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 11:39:47,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 11:39:47,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 11:39:47,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 11:39:47,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 11:39:47,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 11:39:47,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 11:39:47,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 11:39:47,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 11:39:47,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 11:39:47,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 11:39:47,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 11:39:47,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 11:39:47,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 11:39:47,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 11:39:47,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:39:47,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 11:39:47,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 11:39:47,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 11:39:47,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 11:39:47,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 11:39:47,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 11:39:47,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 11:39:47,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 11:39:47,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 11:39:47,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9b50f113379d6dd32c9227ee2a149aa46425a55ff517b54eccf6b1bc662e210 [2024-11-22 11:39:47,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 11:39:47,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 11:39:47,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 11:39:47,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 11:39:47,732 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 11:39:47,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-34.i [2024-11-22 11:39:49,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 11:39:49,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 11:39:49,387 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-34.i [2024-11-22 11:39:49,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c4a61e6/0986b89bd8374548a5a98d6d1303bcb3/FLAG329835917 [2024-11-22 11:39:49,684 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c4a61e6/0986b89bd8374548a5a98d6d1303bcb3 [2024-11-22 11:39:49,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 11:39:49,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 11:39:49,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 11:39:49,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 11:39:49,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 11:39:49,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:39:49" (1/1) ... [2024-11-22 11:39:49,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ff8f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:49, skipping insertion in model container [2024-11-22 11:39:49,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:39:49" (1/1) ... [2024-11-22 11:39:49,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 11:39:49,936 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-34.i[916,929] [2024-11-22 11:39:50,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:39:50,117 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 11:39:50,128 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-34.i[916,929] [2024-11-22 11:39:50,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 11:39:50,241 INFO L204 MainTranslator]: Completed translation [2024-11-22 11:39:50,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50 WrapperNode [2024-11-22 11:39:50,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 11:39:50,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 11:39:50,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 11:39:50,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 11:39:50,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,336 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2024-11-22 11:39:50,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 11:39:50,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 11:39:50,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 11:39:50,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 11:39:50,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,395 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]. [2024-11-22 11:39:50,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 11:39:50,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 11:39:50,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 11:39:50,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 11:39:50,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (1/1) ... [2024-11-22 11:39:50,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 11:39:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:39:50,491 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) [2024-11-22 11:39:50,497 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 [2024-11-22 11:39:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 11:39:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 11:39:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 11:39:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 11:39:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 11:39:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 11:39:50,696 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 11:39:50,698 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 11:39:51,429 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-22 11:39:51,429 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 11:39:51,449 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 11:39:51,450 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 11:39:51,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:39:51 BoogieIcfgContainer [2024-11-22 11:39:51,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 11:39:51,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 11:39:51,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 11:39:51,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 11:39:51,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:39:49" (1/3) ... [2024-11-22 11:39:51,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235007d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:39:51, skipping insertion in model container [2024-11-22 11:39:51,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:39:50" (2/3) ... [2024-11-22 11:39:51,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235007d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:39:51, skipping insertion in model container [2024-11-22 11:39:51,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:39:51" (3/3) ... [2024-11-22 11:39:51,461 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-34.i [2024-11-22 11:39:51,475 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 11:39:51,476 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 11:39:51,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 11:39:51,558 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;@2a7996cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 11:39:51,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 11:39:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 133 states have (on average 1.5037593984962405) internal successors, (200), 134 states have internal predecessors, (200), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 11:39:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-22 11:39:51,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:51,591 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:51,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:51,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1209112783, now seen corresponding path program 1 times [2024-11-22 11:39:51,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:51,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895486271] [2024-11-22 11:39:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:51,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-22 11:39:52,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:52,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895486271] [2024-11-22 11:39:52,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895486271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:39:52,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481810116] [2024-11-22 11:39:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:52,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:39:52,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:39:52,133 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) [2024-11-22 11:39:52,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 11:39:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:52,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 11:39:52,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:39:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2024-11-22 11:39:52,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 11:39:52,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481810116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:52,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 11:39:52,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 11:39:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637326440] [2024-11-22 11:39:52,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:52,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 11:39:52,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:52,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 11:39:52,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:39:52,531 INFO L87 Difference]: Start difference. First operand has 180 states, 133 states have (on average 1.5037593984962405) internal successors, (200), 134 states have internal predecessors, (200), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-22 11:39:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:52,586 INFO L93 Difference]: Finished difference Result 353 states and 614 transitions. [2024-11-22 11:39:52,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 11:39:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 300 [2024-11-22 11:39:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:52,598 INFO L225 Difference]: With dead ends: 353 [2024-11-22 11:39:52,599 INFO L226 Difference]: Without dead ends: 176 [2024-11-22 11:39:52,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 11:39:52,609 INFO L432 NwaCegarLoop]: 280 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, 280 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 [2024-11-22 11:39:52,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:39:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-22 11:39:52,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-22 11:39:52,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 130 states have (on average 1.476923076923077) internal successors, (192), 130 states have internal predecessors, (192), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 11:39:52,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 280 transitions. [2024-11-22 11:39:52,682 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 280 transitions. Word has length 300 [2024-11-22 11:39:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:52,683 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 280 transitions. [2024-11-22 11:39:52,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-22 11:39:52,684 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 280 transitions. [2024-11-22 11:39:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-22 11:39:52,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:52,695 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:52,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 11:39:52,896 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 [2024-11-22 11:39:52,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1464362175, now seen corresponding path program 1 times [2024-11-22 11:39:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597905544] [2024-11-22 11:39:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-22 11:39:53,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597905544] [2024-11-22 11:39:53,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597905544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:53,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:53,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:39:53,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397105830] [2024-11-22 11:39:53,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:53,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:39:53,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:53,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:39:53,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:53,224 INFO L87 Difference]: Start difference. First operand 176 states and 280 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:53,319 INFO L93 Difference]: Finished difference Result 479 states and 762 transitions. [2024-11-22 11:39:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:39:53,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 300 [2024-11-22 11:39:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:53,342 INFO L225 Difference]: With dead ends: 479 [2024-11-22 11:39:53,343 INFO L226 Difference]: Without dead ends: 306 [2024-11-22 11:39:53,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:53,345 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 193 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:53,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 718 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:39:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-22 11:39:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2024-11-22 11:39:53,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 237 states have (on average 1.4978902953586497) internal successors, (355), 238 states have internal predecessors, (355), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-22 11:39:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 481 transitions. [2024-11-22 11:39:53,376 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 481 transitions. Word has length 300 [2024-11-22 11:39:53,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:53,377 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 481 transitions. [2024-11-22 11:39:53,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:53,378 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 481 transitions. [2024-11-22 11:39:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-22 11:39:53,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:53,385 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:53,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 11:39:53,386 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:53,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1834189951, now seen corresponding path program 1 times [2024-11-22 11:39:53,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:53,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969014445] [2024-11-22 11:39:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:53,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-22 11:39:53,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:53,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969014445] [2024-11-22 11:39:53,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969014445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:53,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:53,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:39:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161412756] [2024-11-22 11:39:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:53,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:39:53,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:39:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:53,631 INFO L87 Difference]: Start difference. First operand 303 states and 481 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:53,748 INFO L93 Difference]: Finished difference Result 863 states and 1366 transitions. [2024-11-22 11:39:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:39:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 300 [2024-11-22 11:39:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:53,755 INFO L225 Difference]: With dead ends: 863 [2024-11-22 11:39:53,755 INFO L226 Difference]: Without dead ends: 563 [2024-11-22 11:39:53,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:53,757 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 229 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:53,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 661 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 11:39:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-22 11:39:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 365. [2024-11-22 11:39:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 299 states have (on average 1.4849498327759196) internal successors, (444), 300 states have internal predecessors, (444), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-22 11:39:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 570 transitions. [2024-11-22 11:39:53,836 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 570 transitions. Word has length 300 [2024-11-22 11:39:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:53,838 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 570 transitions. [2024-11-22 11:39:53,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 570 transitions. [2024-11-22 11:39:53,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-22 11:39:53,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:53,843 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:53,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 11:39:53,843 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:53,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash -474137471, now seen corresponding path program 1 times [2024-11-22 11:39:53,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863230117] [2024-11-22 11:39:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:53,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-22 11:39:54,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:54,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863230117] [2024-11-22 11:39:54,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863230117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:54,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:54,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 11:39:54,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566191293] [2024-11-22 11:39:54,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:54,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 11:39:54,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:54,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 11:39:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:54,122 INFO L87 Difference]: Start difference. First operand 365 states and 570 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:54,185 INFO L93 Difference]: Finished difference Result 1089 states and 1704 transitions. [2024-11-22 11:39:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 11:39:54,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 300 [2024-11-22 11:39:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:54,192 INFO L225 Difference]: With dead ends: 1089 [2024-11-22 11:39:54,193 INFO L226 Difference]: Without dead ends: 727 [2024-11-22 11:39:54,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 11:39:54,196 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 169 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:54,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 538 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 11:39:54,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-22 11:39:54,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 715. [2024-11-22 11:39:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 584 states have (on average 1.4726027397260273) internal successors, (860), 586 states have internal predecessors, (860), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 124 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 11:39:54,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1112 transitions. [2024-11-22 11:39:54,276 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1112 transitions. Word has length 300 [2024-11-22 11:39:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:54,279 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 1112 transitions. [2024-11-22 11:39:54,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:54,279 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1112 transitions. [2024-11-22 11:39:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-11-22 11:39:54,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:54,284 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:54,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 11:39:54,288 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:54,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1893187998, now seen corresponding path program 1 times [2024-11-22 11:39:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:54,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771384254] [2024-11-22 11:39:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:54,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-22 11:39:55,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:55,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771384254] [2024-11-22 11:39:55,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771384254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:39:55,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:39:55,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 11:39:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95884774] [2024-11-22 11:39:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:39:55,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 11:39:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 11:39:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 11:39:55,407 INFO L87 Difference]: Start difference. First operand 715 states and 1112 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:55,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:39:55,700 INFO L93 Difference]: Finished difference Result 1983 states and 3085 transitions. [2024-11-22 11:39:55,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 11:39:55,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 301 [2024-11-22 11:39:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:39:55,710 INFO L225 Difference]: With dead ends: 1983 [2024-11-22 11:39:55,711 INFO L226 Difference]: Without dead ends: 1271 [2024-11-22 11:39:55,713 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 [2024-11-22 11:39:55,714 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 255 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 11:39:55,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 803 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 11:39:55,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-22 11:39:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1057. [2024-11-22 11:39:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 881 states have (on average 1.503972758229285) internal successors, (1325), 883 states have internal predecessors, (1325), 170 states have call successors, (170), 5 states have call predecessors, (170), 5 states have return successors, (170), 168 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 11:39:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1665 transitions. [2024-11-22 11:39:55,811 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1665 transitions. Word has length 301 [2024-11-22 11:39:55,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:39:55,812 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1665 transitions. [2024-11-22 11:39:55,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-11-22 11:39:55,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1665 transitions. [2024-11-22 11:39:55,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-22 11:39:55,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:39:55,818 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:39:55,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 11:39:55,819 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:39:55,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:39:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash 714729091, now seen corresponding path program 1 times [2024-11-22 11:39:55,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:39:55,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427923899] [2024-11-22 11:39:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:39:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-22 11:39:57,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:39:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427923899] [2024-11-22 11:39:57,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427923899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:39:57,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862987120] [2024-11-22 11:39:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:39:57,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:39:57,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:39:57,353 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) [2024-11-22 11:39:57,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 11:39:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:39:57,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 11:39:57,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:39:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1873 proven. 150 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2024-11-22 11:39:58,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 11:39:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 51 proven. 78 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-22 11:39:58,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862987120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 11:39:58,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 11:39:58,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 6] total 14 [2024-11-22 11:39:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734629075] [2024-11-22 11:39:58,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 11:39:58,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 11:39:58,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:39:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 11:39:58,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-22 11:39:58,452 INFO L87 Difference]: Start difference. First operand 1057 states and 1665 transitions. Second operand has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 4 states have call successors, (111), 3 states have call predecessors, (111), 5 states have return successors, (113), 4 states have call predecessors, (113), 4 states have call successors, (113) [2024-11-22 11:40:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:40:01,002 INFO L93 Difference]: Finished difference Result 3829 states and 5786 transitions. [2024-11-22 11:40:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-22 11:40:01,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 4 states have call successors, (111), 3 states have call predecessors, (111), 5 states have return successors, (113), 4 states have call predecessors, (113), 4 states have call successors, (113) Word has length 302 [2024-11-22 11:40:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:40:01,016 INFO L225 Difference]: With dead ends: 3829 [2024-11-22 11:40:01,016 INFO L226 Difference]: Without dead ends: 3001 [2024-11-22 11:40:01,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 606 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1518 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=982, Invalid=3308, Unknown=0, NotChecked=0, Total=4290 [2024-11-22 11:40:01,021 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 2460 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2462 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 11:40:01,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2462 Valid, 1639 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 11:40:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2024-11-22 11:40:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1521. [2024-11-22 11:40:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1330 states have (on average 1.4233082706766917) internal successors, (1893), 1334 states have internal predecessors, (1893), 170 states have call successors, (170), 20 states have call predecessors, (170), 20 states have return successors, (170), 166 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 11:40:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2233 transitions. [2024-11-22 11:40:01,204 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2233 transitions. Word has length 302 [2024-11-22 11:40:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:40:01,204 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 2233 transitions. [2024-11-22 11:40:01,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.5) internal successors, (175), 14 states have internal predecessors, (175), 4 states have call successors, (111), 3 states have call predecessors, (111), 5 states have return successors, (113), 4 states have call predecessors, (113), 4 states have call successors, (113) [2024-11-22 11:40:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2233 transitions. [2024-11-22 11:40:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-22 11:40:01,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:40:01,210 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:40:01,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 11:40:01,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 11:40:01,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:40:01,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:40:01,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1313335641, now seen corresponding path program 1 times [2024-11-22 11:40:01,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:40:01,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373404728] [2024-11-22 11:40:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:40:01,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:40:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:40:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 228 proven. 141 refuted. 0 times theorem prover too weak. 3415 trivial. 0 not checked. [2024-11-22 11:40:04,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:40:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373404728] [2024-11-22 11:40:04,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373404728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:40:04,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851585499] [2024-11-22 11:40:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:40:04,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:40:04,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:40:04,283 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) [2024-11-22 11:40:04,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 11:40:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:40:04,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 11:40:04,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:40:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1573 proven. 165 refuted. 0 times theorem prover too weak. 2046 trivial. 0 not checked. [2024-11-22 11:40:06,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 11:40:37,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851585499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:40:37,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 11:40:37,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 31 [2024-11-22 11:40:37,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019886566] [2024-11-22 11:40:37,070 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 11:40:37,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 11:40:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:40:37,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 11:40:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1184, Unknown=4, NotChecked=0, Total=1332 [2024-11-22 11:40:37,073 INFO L87 Difference]: Start difference. First operand 1521 states and 2233 transitions. Second operand has 31 states, 31 states have (on average 5.612903225806452) internal successors, (174), 29 states have internal predecessors, (174), 8 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 9 states have call predecessors, (88), 8 states have call successors, (88) [2024-11-22 11:40:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:40:45,870 INFO L93 Difference]: Finished difference Result 7331 states and 10325 transitions. [2024-11-22 11:40:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-22 11:40:45,871 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.612903225806452) internal successors, (174), 29 states have internal predecessors, (174), 8 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 9 states have call predecessors, (88), 8 states have call successors, (88) Word has length 303 [2024-11-22 11:40:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:40:45,894 INFO L225 Difference]: With dead ends: 7331 [2024-11-22 11:40:45,894 INFO L226 Difference]: Without dead ends: 5939 [2024-11-22 11:40:45,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 352 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5122 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=2205, Invalid=13793, Unknown=4, NotChecked=0, Total=16002 [2024-11-22 11:40:45,904 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 4397 mSDsluCounter, 5049 mSDsCounter, 0 mSdLazyCounter, 4486 mSolverCounterSat, 824 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4400 SdHoareTripleChecker+Valid, 5487 SdHoareTripleChecker+Invalid, 5310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 824 IncrementalHoareTripleChecker+Valid, 4486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-22 11:40:45,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4400 Valid, 5487 Invalid, 5310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [824 Valid, 4486 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-22 11:40:45,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-11-22 11:40:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 3235. [2024-11-22 11:40:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 2878 states have (on average 1.396455872133426) internal successors, (4019), 2890 states have internal predecessors, (4019), 284 states have call successors, (284), 72 states have call predecessors, (284), 72 states have return successors, (284), 272 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-22 11:40:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4587 transitions. [2024-11-22 11:40:46,209 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4587 transitions. Word has length 303 [2024-11-22 11:40:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:40:46,210 INFO L471 AbstractCegarLoop]: Abstraction has 3235 states and 4587 transitions. [2024-11-22 11:40:46,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.612903225806452) internal successors, (174), 29 states have internal predecessors, (174), 8 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 9 states have call predecessors, (88), 8 states have call successors, (88) [2024-11-22 11:40:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4587 transitions. [2024-11-22 11:40:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-11-22 11:40:46,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:40:46,217 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:40:46,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 11:40:46,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:40:46,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:40:46,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:40:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash 953045545, now seen corresponding path program 1 times [2024-11-22 11:40:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:40:46,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4966944] [2024-11-22 11:40:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:40:46,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:40:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:40:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 228 proven. 141 refuted. 0 times theorem prover too weak. 3415 trivial. 0 not checked. [2024-11-22 11:40:49,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:40:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4966944] [2024-11-22 11:40:49,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4966944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:40:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630539791] [2024-11-22 11:40:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:40:49,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:40:49,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:40:49,101 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) [2024-11-22 11:40:49,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 11:40:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:40:49,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-22 11:40:49,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:40:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1573 proven. 165 refuted. 0 times theorem prover too weak. 2046 trivial. 0 not checked. [2024-11-22 11:40:50,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 11:40:51,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630539791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:40:51,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 11:40:51,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19] total 28 [2024-11-22 11:40:51,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25337743] [2024-11-22 11:40:51,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 11:40:51,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 11:40:51,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:40:51,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 11:40:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 11:40:51,538 INFO L87 Difference]: Start difference. First operand 3235 states and 4587 transitions. Second operand has 28 states, 28 states have (on average 5.964285714285714) internal successors, (167), 26 states have internal predecessors, (167), 7 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 8 states have call predecessors, (88), 7 states have call successors, (88) [2024-11-22 11:40:56,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:40:56,933 INFO L93 Difference]: Finished difference Result 8481 states and 11813 transitions. [2024-11-22 11:40:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-22 11:40:56,934 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.964285714285714) internal successors, (167), 26 states have internal predecessors, (167), 7 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 8 states have call predecessors, (88), 7 states have call successors, (88) Word has length 303 [2024-11-22 11:40:56,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:40:56,964 INFO L225 Difference]: With dead ends: 8481 [2024-11-22 11:40:56,965 INFO L226 Difference]: Without dead ends: 6703 [2024-11-22 11:40:56,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 353 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1790, Invalid=6400, Unknown=0, NotChecked=0, Total=8190 [2024-11-22 11:40:56,974 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 2718 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 11:40:56,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 4041 Invalid, 3717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 11:40:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2024-11-22 11:40:57,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 4407. [2024-11-22 11:40:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4407 states, 3884 states have (on average 1.38697219361483) internal successors, (5387), 3900 states have internal predecessors, (5387), 414 states have call successors, (414), 108 states have call predecessors, (414), 108 states have return successors, (414), 398 states have call predecessors, (414), 414 states have call successors, (414) [2024-11-22 11:40:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4407 states to 4407 states and 6215 transitions. [2024-11-22 11:40:57,365 INFO L78 Accepts]: Start accepts. Automaton has 4407 states and 6215 transitions. Word has length 303 [2024-11-22 11:40:57,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:40:57,366 INFO L471 AbstractCegarLoop]: Abstraction has 4407 states and 6215 transitions. [2024-11-22 11:40:57,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.964285714285714) internal successors, (167), 26 states have internal predecessors, (167), 7 states have call successors, (88), 5 states have call predecessors, (88), 8 states have return successors, (88), 8 states have call predecessors, (88), 7 states have call successors, (88) [2024-11-22 11:40:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4407 states and 6215 transitions. [2024-11-22 11:40:57,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-22 11:40:57,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:40:57,373 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:40:57,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 11:40:57,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:40:57,577 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:40:57,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:40:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1360242306, now seen corresponding path program 1 times [2024-11-22 11:40:57,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:40:57,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115179799] [2024-11-22 11:40:57,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:40:57,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:40:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:40:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-22 11:40:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:40:58,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115179799] [2024-11-22 11:40:58,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115179799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 11:40:58,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 11:40:58,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 11:40:58,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717206981] [2024-11-22 11:40:58,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 11:40:58,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 11:40:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:40:58,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 11:40:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 11:40:58,909 INFO L87 Difference]: Start difference. First operand 4407 states and 6215 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-22 11:41:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:41:00,562 INFO L93 Difference]: Finished difference Result 17733 states and 24715 transitions. [2024-11-22 11:41:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 11:41:00,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 304 [2024-11-22 11:41:00,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:41:00,614 INFO L225 Difference]: With dead ends: 17733 [2024-11-22 11:41:00,614 INFO L226 Difference]: Without dead ends: 14399 [2024-11-22 11:41:00,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-22 11:41:00,627 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1148 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 11:41:00,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1078 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 11:41:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14399 states. [2024-11-22 11:41:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14399 to 9613. [2024-11-22 11:41:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 8609 states have (on average 1.3906377047276106) internal successors, (11972), 8645 states have internal predecessors, (11972), 792 states have call successors, (792), 211 states have call predecessors, (792), 211 states have return successors, (792), 756 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-22 11:41:01,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 13556 transitions. [2024-11-22 11:41:01,540 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 13556 transitions. Word has length 304 [2024-11-22 11:41:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:41:01,541 INFO L471 AbstractCegarLoop]: Abstraction has 9613 states and 13556 transitions. [2024-11-22 11:41:01,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-22 11:41:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 13556 transitions. [2024-11-22 11:41:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-22 11:41:01,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:41:01,549 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:41:01,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 11:41:01,550 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 11:41:01,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 11:41:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1654861312, now seen corresponding path program 1 times [2024-11-22 11:41:01,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 11:41:01,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914505669] [2024-11-22 11:41:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:41:01,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 11:41:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:41:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 90 proven. 39 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-22 11:41:02,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 11:41:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914505669] [2024-11-22 11:41:02,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914505669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 11:41:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957950997] [2024-11-22 11:41:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 11:41:02,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 11:41:02,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 11:41:02,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 11:41:02,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 11:41:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 11:41:02,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 11:41:02,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 11:41:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1663 proven. 39 refuted. 0 times theorem prover too weak. 2082 trivial. 0 not checked. [2024-11-22 11:41:02,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 11:41:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 90 proven. 39 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2024-11-22 11:41:02,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957950997] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 11:41:02,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 11:41:02,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-22 11:41:02,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957678893] [2024-11-22 11:41:02,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 11:41:02,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 11:41:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 11:41:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 11:41:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 11:41:02,962 INFO L87 Difference]: Start difference. First operand 9613 states and 13556 transitions. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 4 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-22 11:41:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 11:41:03,870 INFO L93 Difference]: Finished difference Result 17273 states and 24182 transitions. [2024-11-22 11:41:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 11:41:03,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 4 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) Word has length 304 [2024-11-22 11:41:03,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 11:41:03,897 INFO L225 Difference]: With dead ends: 17273 [2024-11-22 11:41:03,897 INFO L226 Difference]: Without dead ends: 9629 [2024-11-22 11:41:03,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-22 11:41:03,912 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 751 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 11:41:03,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 577 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 11:41:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9629 states. [2024-11-22 11:41:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9629 to 8961. [2024-11-22 11:41:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8961 states, 7944 states have (on average 1.3771399798590132) internal successors, (10940), 7980 states have internal predecessors, (10940), 792 states have call successors, (792), 224 states have call predecessors, (792), 224 states have return successors, (792), 756 states have call predecessors, (792), 792 states have call successors, (792) [2024-11-22 11:41:04,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8961 states to 8961 states and 12524 transitions. [2024-11-22 11:41:04,725 INFO L78 Accepts]: Start accepts. Automaton has 8961 states and 12524 transitions. Word has length 304 [2024-11-22 11:41:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 11:41:04,726 INFO L471 AbstractCegarLoop]: Abstraction has 8961 states and 12524 transitions. [2024-11-22 11:41:04,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 4 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-22 11:41:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8961 states and 12524 transitions. [2024-11-22 11:41:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-22 11:41:04,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 11:41:04,735 INFO L215 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 11:41:04,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0