./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-045.c --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/xcsp/Dubois-045.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b38997dcf34f735806aa8a88e1a7901aa7561a04fd7801926d110d62cf577fa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:08:29,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:08:29,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:08:29,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:08:29,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:08:29,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:08:29,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:08:29,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:08:29,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:08:29,737 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:08:29,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:08:29,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:08:29,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:08:29,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:08:29,739 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:08:29,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:08:29,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:08:29,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:08:29,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:08:29,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:08:29,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:08:29,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:08:29,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:08:29,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:08:29,748 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:08:29,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:08:29,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:08:29,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:08:29,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:08:29,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:08:29,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:08:29,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:08:29,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:08:29,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:08:29,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:08:29,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:08:29,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:08:29,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:08:29,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:08:29,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:08:29,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:08:29,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:08:29,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b38997dcf34f735806aa8a88e1a7901aa7561a04fd7801926d110d62cf577fa [2024-11-22 03:08:30,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:08:30,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:08:30,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:08:30,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:08:30,032 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:08:30,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-045.c [2024-11-22 03:08:31,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:08:31,899 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:08:31,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-045.c [2024-11-22 03:08:31,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a35b1b59/8997f33b2c1949528a1919102fc416cf/FLAGe060b8de9 [2024-11-22 03:08:32,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a35b1b59/8997f33b2c1949528a1919102fc416cf [2024-11-22 03:08:32,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:08:32,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:08:32,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:08:32,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:08:32,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:08:32,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:32,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a975a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32, skipping insertion in model container [2024-11-22 03:08:32,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:32,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:08:32,694 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/xcsp/Dubois-045.c[31920,31933] [2024-11-22 03:08:32,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:08:32,737 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:08:32,821 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/xcsp/Dubois-045.c[31920,31933] [2024-11-22 03:08:32,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:08:32,850 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:08:32,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32 WrapperNode [2024-11-22 03:08:32,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:08:32,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:08:32,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:08:32,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:08:32,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:32,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,413 INFO L138 Inliner]: procedures = 13, calls = 367, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8971 [2024-11-22 03:08:33,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:08:33,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:08:33,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:08:33,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:08:33,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,792 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 03:08:33,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:33,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:34,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:34,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:34,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:34,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:08:34,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:08:34,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:08:34,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:08:34,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (1/1) ... [2024-11-22 03:08:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:08:34,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:08:34,179 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 03:08:34,189 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 03:08:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:08:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:08:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:08:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:08:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-22 03:08:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-22 03:08:34,451 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:08:34,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:08:42,232 INFO L? ?]: Removed 3110 outVars from TransFormulas that were not future-live. [2024-11-22 03:08:42,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:08:42,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:08:42,306 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 03:08:42,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:42 BoogieIcfgContainer [2024-11-22 03:08:42,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:08:42,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:08:42,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:08:42,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:08:42,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:08:32" (1/3) ... [2024-11-22 03:08:42,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1930ba74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:42, skipping insertion in model container [2024-11-22 03:08:42,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:32" (2/3) ... [2024-11-22 03:08:42,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1930ba74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:08:42, skipping insertion in model container [2024-11-22 03:08:42,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:08:42" (3/3) ... [2024-11-22 03:08:42,317 INFO L112 eAbstractionObserver]: Analyzing ICFG Dubois-045.c [2024-11-22 03:08:42,333 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:08:42,333 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 03:08:42,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:08:42,481 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;@1180e863, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:08:42,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 03:08:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 3566 states, 3203 states have (on average 1.6187948798001872) internal successors, (5185), 3204 states have internal predecessors, (5185), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-22 03:08:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3019 [2024-11-22 03:08:42,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:08:42,673 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:42,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:08:42,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:08:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1683896741, now seen corresponding path program 1 times [2024-11-22 03:08:42,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:08:42,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124075907] [2024-11-22 03:08:42,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:42,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:08:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:08:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 0 proven. 718 refuted. 0 times theorem prover too weak. 257762 trivial. 0 not checked. [2024-11-22 03:08:45,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:08:45,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124075907] [2024-11-22 03:08:45,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124075907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:08:45,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047050053] [2024-11-22 03:08:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:45,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:08:45,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:08:45,600 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 03:08:45,602 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 03:08:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:08:46,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 6596 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 03:08:46,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:08:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 718 proven. 0 refuted. 0 times theorem prover too weak. 257762 trivial. 0 not checked. [2024-11-22 03:08:47,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:08:47,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047050053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:08:47,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:08:47,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 03:08:47,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228147371] [2024-11-22 03:08:47,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:08:47,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:08:47,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:08:47,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:08:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:08:47,130 INFO L87 Difference]: Start difference. First operand has 3566 states, 3203 states have (on average 1.6187948798001872) internal successors, (5185), 3204 states have internal predecessors, (5185), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) Second operand has 2 states, 2 states have (on average 611.5) internal successors, (1223), 2 states have internal predecessors, (1223), 2 states have call successors, (360), 2 states have call predecessors, (360), 1 states have return successors, (360), 1 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:08:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:08:47,388 INFO L93 Difference]: Finished difference Result 7126 states and 12164 transitions. [2024-11-22 03:08:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:08:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 611.5) internal successors, (1223), 2 states have internal predecessors, (1223), 2 states have call successors, (360), 2 states have call predecessors, (360), 1 states have return successors, (360), 1 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3018 [2024-11-22 03:08:47,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:08:47,453 INFO L225 Difference]: With dead ends: 7126 [2024-11-22 03:08:47,455 INFO L226 Difference]: Without dead ends: 3563 [2024-11-22 03:08:47,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3019 GetRequests, 3019 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 03:08:47,483 INFO L432 NwaCegarLoop]: 5901 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, 5901 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 03:08:47,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5901 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:08:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2024-11-22 03:08:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3563. [2024-11-22 03:08:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3201 states have (on average 1.6185567010309279) internal successors, (5181), 3201 states have internal predecessors, (5181), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-22 03:08:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 5901 transitions. [2024-11-22 03:08:47,774 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 5901 transitions. Word has length 3018 [2024-11-22 03:08:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:08:47,775 INFO L471 AbstractCegarLoop]: Abstraction has 3563 states and 5901 transitions. [2024-11-22 03:08:47,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 611.5) internal successors, (1223), 2 states have internal predecessors, (1223), 2 states have call successors, (360), 2 states have call predecessors, (360), 1 states have return successors, (360), 1 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:08:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 5901 transitions. [2024-11-22 03:08:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3019 [2024-11-22 03:08:47,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:08:47,936 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:08:47,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 03:08:48,140 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 03:08:48,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:08:48,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:08:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash 524423717, now seen corresponding path program 1 times [2024-11-22 03:08:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:08:48,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675321655] [2024-11-22 03:08:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:08:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:08:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:08:52,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:08:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675321655] [2024-11-22 03:08:52,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675321655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:08:52,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021304478] [2024-11-22 03:08:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:52,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:08:52,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:08:52,298 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 03:08:52,301 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 03:08:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:08:53,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 6596 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 03:08:53,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:08:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1077 proven. 0 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:08:53,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:08:53,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021304478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:08:53,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:08:53,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-22 03:08:53,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754066187] [2024-11-22 03:08:53,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:08:54,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:08:54,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:08:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:08:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:08:54,007 INFO L87 Difference]: Start difference. First operand 3563 states and 5901 transitions. Second operand has 6 states, 5 states have (on average 244.8) internal successors, (1224), 6 states have internal predecessors, (1224), 2 states have call successors, (360), 1 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:08:55,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:08:55,747 INFO L93 Difference]: Finished difference Result 3575 states and 5915 transitions. [2024-11-22 03:08:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:08:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 244.8) internal successors, (1224), 6 states have internal predecessors, (1224), 2 states have call successors, (360), 1 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3018 [2024-11-22 03:08:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:08:55,772 INFO L225 Difference]: With dead ends: 3575 [2024-11-22 03:08:55,773 INFO L226 Difference]: Without dead ends: 3565 [2024-11-22 03:08:55,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3023 GetRequests, 3017 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:08:55,777 INFO L432 NwaCegarLoop]: 5537 mSDtfsCounter, 1 mSDsluCounter, 21415 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26952 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:08:55,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26952 Invalid, 2550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 03:08:55,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2024-11-22 03:08:55,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2024-11-22 03:08:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 3203 states have (on average 1.6181704651888855) internal successors, (5183), 3203 states have internal predecessors, (5183), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-22 03:08:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 5903 transitions. [2024-11-22 03:08:55,900 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 5903 transitions. Word has length 3018 [2024-11-22 03:08:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:08:55,907 INFO L471 AbstractCegarLoop]: Abstraction has 3565 states and 5903 transitions. [2024-11-22 03:08:55,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 244.8) internal successors, (1224), 6 states have internal predecessors, (1224), 2 states have call successors, (360), 1 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:08:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 5903 transitions. [2024-11-22 03:08:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3020 [2024-11-22 03:08:56,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:08:56,064 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1] [2024-11-22 03:08:56,080 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 03:08:56,268 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,SelfDestructingSolverStorable1 [2024-11-22 03:08:56,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:08:56,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:08:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1970338522, now seen corresponding path program 1 times [2024-11-22 03:08:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:08:56,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928127223] [2024-11-22 03:08:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:08:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:08:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:08:59,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:08:59,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928127223] [2024-11-22 03:08:59,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928127223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:08:59,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363963027] [2024-11-22 03:08:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:08:59,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:08:59,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:08:59,227 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 03:08:59,240 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 03:09:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:00,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 6599 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 03:09:00,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:00,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:00,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363963027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:00,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:00,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 03:09:00,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001746153] [2024-11-22 03:09:00,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:00,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:09:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:00,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:09:00,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:00,837 INFO L87 Difference]: Start difference. First operand 3565 states and 5903 transitions. Second operand has 4 states, 4 states have (on average 306.25) internal successors, (1225), 4 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:00,974 INFO L93 Difference]: Finished difference Result 3595 states and 5945 transitions. [2024-11-22 03:09:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:09:00,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.25) internal successors, (1225), 4 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3019 [2024-11-22 03:09:00,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:00,997 INFO L225 Difference]: With dead ends: 3595 [2024-11-22 03:09:00,997 INFO L226 Difference]: Without dead ends: 3574 [2024-11-22 03:09:00,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3024 GetRequests, 3018 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:01,000 INFO L432 NwaCegarLoop]: 5897 mSDtfsCounter, 9 mSDsluCounter, 11781 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:01,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-22 03:09:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3574. [2024-11-22 03:09:01,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3212 states have (on average 1.6176836861768369) internal successors, (5196), 3212 states have internal predecessors, (5196), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-22 03:09:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5916 transitions. [2024-11-22 03:09:01,238 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5916 transitions. Word has length 3019 [2024-11-22 03:09:01,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:01,248 INFO L471 AbstractCegarLoop]: Abstraction has 3574 states and 5916 transitions. [2024-11-22 03:09:01,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.25) internal successors, (1225), 4 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5916 transitions. [2024-11-22 03:09:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3020 [2024-11-22 03:09:01,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:01,373 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:01,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 03:09:01,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:01,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:01,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash 540415412, now seen corresponding path program 1 times [2024-11-22 03:09:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389189574] [2024-11-22 03:09:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:03,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:03,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389189574] [2024-11-22 03:09:03,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389189574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:03,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047308130] [2024-11-22 03:09:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:03,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:03,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:03,935 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 03:09:03,940 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 03:09:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:05,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 6599 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:05,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:05,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:05,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047308130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:05,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:05,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:05,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076710787] [2024-11-22 03:09:05,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:05,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:05,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:05,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:05,381 INFO L87 Difference]: Start difference. First operand 3574 states and 5916 transitions. Second operand has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:05,436 INFO L93 Difference]: Finished difference Result 3592 states and 5938 transitions. [2024-11-22 03:09:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3019 [2024-11-22 03:09:05,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:05,451 INFO L225 Difference]: With dead ends: 3592 [2024-11-22 03:09:05,452 INFO L226 Difference]: Without dead ends: 3575 [2024-11-22 03:09:05,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3024 GetRequests, 3019 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:05,455 INFO L432 NwaCegarLoop]: 5900 mSDtfsCounter, 0 mSDsluCounter, 5891 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11791 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:05,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11791 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2024-11-22 03:09:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3575. [2024-11-22 03:09:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3213 states have (on average 1.6171802054154996) internal successors, (5196), 3213 states have internal predecessors, (5196), 360 states have call successors, (360), 1 states have call predecessors, (360), 1 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-22 03:09:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 5916 transitions. [2024-11-22 03:09:05,580 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 5916 transitions. Word has length 3019 [2024-11-22 03:09:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:05,585 INFO L471 AbstractCegarLoop]: Abstraction has 3575 states and 5916 transitions. [2024-11-22 03:09:05,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 5916 transitions. [2024-11-22 03:09:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3021 [2024-11-22 03:09:05,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:05,630 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-11-22 03:09:05,650 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 03:09:05,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:05,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:05,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:05,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1269583967, now seen corresponding path program 1 times [2024-11-22 03:09:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:05,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872839233] [2024-11-22 03:09:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:05,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:09,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872839233] [2024-11-22 03:09:09,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872839233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:09,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088475580] [2024-11-22 03:09:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:09,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:09,372 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 03:09:09,377 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 03:09:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:10,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 6602 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:10,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:13,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:13,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088475580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:13,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:13,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:13,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396124770] [2024-11-22 03:09:13,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:13,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:13,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:13,956 INFO L87 Difference]: Start difference. First operand 3575 states and 5916 transitions. Second operand has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:14,118 INFO L93 Difference]: Finished difference Result 9846 states and 16298 transitions. [2024-11-22 03:09:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:14,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) Word has length 3020 [2024-11-22 03:09:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:14,151 INFO L225 Difference]: With dead ends: 9846 [2024-11-22 03:09:14,151 INFO L226 Difference]: Without dead ends: 6702 [2024-11-22 03:09:14,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3025 GetRequests, 3020 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:14,160 INFO L432 NwaCegarLoop]: 8079 mSDtfsCounter, 3946 mSDsluCounter, 5895 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3946 SdHoareTripleChecker+Valid, 13974 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:14,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3946 Valid, 13974 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:09:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2024-11-22 03:09:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 6702. [2024-11-22 03:09:14,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6702 states, 6251 states have (on average 1.631578947368421) internal successors, (10199), 6251 states have internal predecessors, (10199), 449 states have call successors, (449), 1 states have call predecessors, (449), 1 states have return successors, (449), 449 states have call predecessors, (449), 449 states have call successors, (449) [2024-11-22 03:09:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6702 states to 6702 states and 11097 transitions. [2024-11-22 03:09:14,411 INFO L78 Accepts]: Start accepts. Automaton has 6702 states and 11097 transitions. Word has length 3020 [2024-11-22 03:09:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 6702 states and 11097 transitions. [2024-11-22 03:09:14,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6702 states and 11097 transitions. [2024-11-22 03:09:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3021 [2024-11-22 03:09:14,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:14,586 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-11-22 03:09:14,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 03:09:14,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:14,788 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:14,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1345778795, now seen corresponding path program 1 times [2024-11-22 03:09:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:14,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106954594] [2024-11-22 03:09:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:14,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:17,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106954594] [2024-11-22 03:09:17,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106954594] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:17,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140193010] [2024-11-22 03:09:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:17,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:17,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:17,169 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:17,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 03:09:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:18,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 6602 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 03:09:18,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:18,780 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:18,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:18,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140193010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:18,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 03:09:18,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77394596] [2024-11-22 03:09:18,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:18,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:09:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:09:18,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:18,786 INFO L87 Difference]: Start difference. First operand 6702 states and 11097 transitions. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:18,870 INFO L93 Difference]: Finished difference Result 6770 states and 11198 transitions. [2024-11-22 03:09:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:09:18,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3020 [2024-11-22 03:09:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:18,908 INFO L225 Difference]: With dead ends: 6770 [2024-11-22 03:09:18,908 INFO L226 Difference]: Without dead ends: 6719 [2024-11-22 03:09:18,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3025 GetRequests, 3019 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:18,913 INFO L432 NwaCegarLoop]: 5897 mSDtfsCounter, 9 mSDsluCounter, 11781 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:18,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2024-11-22 03:09:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 6719. [2024-11-22 03:09:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6719 states, 6268 states have (on average 1.6311423101467772) internal successors, (10224), 6268 states have internal predecessors, (10224), 449 states have call successors, (449), 1 states have call predecessors, (449), 1 states have return successors, (449), 449 states have call predecessors, (449), 449 states have call successors, (449) [2024-11-22 03:09:19,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6719 states to 6719 states and 11122 transitions. [2024-11-22 03:09:19,082 INFO L78 Accepts]: Start accepts. Automaton has 6719 states and 11122 transitions. Word has length 3020 [2024-11-22 03:09:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:19,085 INFO L471 AbstractCegarLoop]: Abstraction has 6719 states and 11122 transitions. [2024-11-22 03:09:19,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6719 states and 11122 transitions. [2024-11-22 03:09:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3021 [2024-11-22 03:09:19,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:19,131 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2024-11-22 03:09:19,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 03:09:19,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:19,337 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:19,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:19,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1965092283, now seen corresponding path program 1 times [2024-11-22 03:09:19,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:19,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096706110] [2024-11-22 03:09:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:19,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096706110] [2024-11-22 03:09:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096706110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72351953] [2024-11-22 03:09:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:21,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:21,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:21,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:21,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 03:09:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:22,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 6602 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:22,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:22,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:22,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72351953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:22,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:22,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:22,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237419363] [2024-11-22 03:09:22,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:22,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:22,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:22,665 INFO L87 Difference]: Start difference. First operand 6719 states and 11122 transitions. Second operand has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:22,736 INFO L93 Difference]: Finished difference Result 6750 states and 11163 transitions. [2024-11-22 03:09:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:22,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3020 [2024-11-22 03:09:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:22,761 INFO L225 Difference]: With dead ends: 6750 [2024-11-22 03:09:22,761 INFO L226 Difference]: Without dead ends: 6712 [2024-11-22 03:09:22,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3025 GetRequests, 3020 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:22,765 INFO L432 NwaCegarLoop]: 5900 mSDtfsCounter, 0 mSDsluCounter, 5891 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11791 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:22,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11791 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:22,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2024-11-22 03:09:22,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 6712. [2024-11-22 03:09:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6712 states, 6261 states have (on average 1.6307299153489858) internal successors, (10210), 6261 states have internal predecessors, (10210), 449 states have call successors, (449), 1 states have call predecessors, (449), 1 states have return successors, (449), 449 states have call predecessors, (449), 449 states have call successors, (449) [2024-11-22 03:09:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 11108 transitions. [2024-11-22 03:09:22,921 INFO L78 Accepts]: Start accepts. Automaton has 6712 states and 11108 transitions. Word has length 3020 [2024-11-22 03:09:22,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:22,924 INFO L471 AbstractCegarLoop]: Abstraction has 6712 states and 11108 transitions. [2024-11-22 03:09:22,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6712 states and 11108 transitions. [2024-11-22 03:09:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3022 [2024-11-22 03:09:22,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:22,970 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1] [2024-11-22 03:09:22,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 03:09:23,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:23,171 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1414264724, now seen corresponding path program 1 times [2024-11-22 03:09:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107844833] [2024-11-22 03:09:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107844833] [2024-11-22 03:09:25,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107844833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690558201] [2024-11-22 03:09:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:25,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:25,759 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:25,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 03:09:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:26,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:26,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:30,424 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:30,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690558201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:30,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:30,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:30,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146238839] [2024-11-22 03:09:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:30,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:30,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:30,430 INFO L87 Difference]: Start difference. First operand 6712 states and 11108 transitions. Second operand has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:30,651 INFO L93 Difference]: Finished difference Result 12980 states and 21476 transitions. [2024-11-22 03:09:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:30,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) Word has length 3021 [2024-11-22 03:09:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:30,683 INFO L225 Difference]: With dead ends: 12980 [2024-11-22 03:09:30,683 INFO L226 Difference]: Without dead ends: 9834 [2024-11-22 03:09:30,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3026 GetRequests, 3021 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:30,697 INFO L432 NwaCegarLoop]: 8119 mSDtfsCounter, 3947 mSDsluCounter, 5896 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 14015 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:30,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 14015 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:09:30,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9834 states. [2024-11-22 03:09:31,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9834 to 9821. [2024-11-22 03:09:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9281 states have (on average 1.6354918651007435) internal successors, (15179), 9281 states have internal predecessors, (15179), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-22 03:09:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 16255 transitions. [2024-11-22 03:09:31,049 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 16255 transitions. Word has length 3021 [2024-11-22 03:09:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:31,053 INFO L471 AbstractCegarLoop]: Abstraction has 9821 states and 16255 transitions. [2024-11-22 03:09:31,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 3 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 3 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 16255 transitions. [2024-11-22 03:09:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3022 [2024-11-22 03:09:31,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:31,174 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1] [2024-11-22 03:09:31,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 03:09:31,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-22 03:09:31,375 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:31,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash 193836448, now seen corresponding path program 1 times [2024-11-22 03:09:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:31,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458071324] [2024-11-22 03:09:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458071324] [2024-11-22 03:09:33,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458071324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99287627] [2024-11-22 03:09:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:33,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:33,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:33,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 03:09:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:35,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:35,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:35,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99287627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:35,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:35,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416646048] [2024-11-22 03:09:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:35,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:35,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:35,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:35,208 INFO L87 Difference]: Start difference. First operand 9821 states and 16255 transitions. Second operand has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:35,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:35,331 INFO L93 Difference]: Finished difference Result 9895 states and 16361 transitions. [2024-11-22 03:09:35,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:35,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3021 [2024-11-22 03:09:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:35,361 INFO L225 Difference]: With dead ends: 9895 [2024-11-22 03:09:35,361 INFO L226 Difference]: Without dead ends: 9840 [2024-11-22 03:09:35,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3026 GetRequests, 3021 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:35,371 INFO L432 NwaCegarLoop]: 5900 mSDtfsCounter, 8 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11792 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:35,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11792 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9840 states. [2024-11-22 03:09:35,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9840 to 9840. [2024-11-22 03:09:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9840 states, 9300 states have (on average 1.6351612903225807) internal successors, (15207), 9300 states have internal predecessors, (15207), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-22 03:09:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9840 states to 9840 states and 16283 transitions. [2024-11-22 03:09:35,753 INFO L78 Accepts]: Start accepts. Automaton has 9840 states and 16283 transitions. Word has length 3021 [2024-11-22 03:09:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:35,757 INFO L471 AbstractCegarLoop]: Abstraction has 9840 states and 16283 transitions. [2024-11-22 03:09:35,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:35,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9840 states and 16283 transitions. [2024-11-22 03:09:36,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3022 [2024-11-22 03:09:36,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:36,006 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1] [2024-11-22 03:09:36,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 03:09:36,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:36,210 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:36,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1457477242, now seen corresponding path program 1 times [2024-11-22 03:09:36,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:36,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180623858] [2024-11-22 03:09:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:36,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:38,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:38,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180623858] [2024-11-22 03:09:38,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180623858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:38,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613086657] [2024-11-22 03:09:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:38,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:38,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:38,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:38,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 03:09:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:39,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 03:09:39,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 1436 proven. 0 refuted. 0 times theorem prover too weak. 257044 trivial. 0 not checked. [2024-11-22 03:09:39,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:39,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613086657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:39,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:39,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 03:09:39,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778602611] [2024-11-22 03:09:39,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:39,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:09:39,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:39,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:09:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:39,710 INFO L87 Difference]: Start difference. First operand 9840 states and 16283 transitions. Second operand has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:39,800 INFO L93 Difference]: Finished difference Result 9895 states and 16357 transitions. [2024-11-22 03:09:39,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:09:39,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3021 [2024-11-22 03:09:39,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:40,013 INFO L225 Difference]: With dead ends: 9895 [2024-11-22 03:09:40,017 INFO L226 Difference]: Without dead ends: 9825 [2024-11-22 03:09:40,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3026 GetRequests, 3021 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 03:09:40,020 INFO L432 NwaCegarLoop]: 5900 mSDtfsCounter, 0 mSDsluCounter, 5891 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11791 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:40,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11791 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9825 states. [2024-11-22 03:09:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9825 to 9825. [2024-11-22 03:09:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9825 states, 9285 states have (on average 1.6347872913301023) internal successors, (15179), 9285 states have internal predecessors, (15179), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-22 03:09:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9825 states to 9825 states and 16255 transitions. [2024-11-22 03:09:40,327 INFO L78 Accepts]: Start accepts. Automaton has 9825 states and 16255 transitions. Word has length 3021 [2024-11-22 03:09:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:40,329 INFO L471 AbstractCegarLoop]: Abstraction has 9825 states and 16255 transitions. [2024-11-22 03:09:40,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 9825 states and 16255 transitions. [2024-11-22 03:09:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3022 [2024-11-22 03:09:40,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:40,386 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:40,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 03:09:40,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 03:09:40,588 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:40,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:40,589 INFO L85 PathProgramCache]: Analyzing trace with hash 882464630, now seen corresponding path program 1 times [2024-11-22 03:09:40,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:40,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678617202] [2024-11-22 03:09:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:40,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:42,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:42,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678617202] [2024-11-22 03:09:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678617202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146780867] [2024-11-22 03:09:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:42,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:42,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:42,547 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:42,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 03:09:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:43,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 03:09:43,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 255970 trivial. 0 not checked. [2024-11-22 03:09:43,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:43,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146780867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:43,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-22 03:09:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763481804] [2024-11-22 03:09:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:43,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:09:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:43,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:09:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:43,687 INFO L87 Difference]: Start difference. First operand 9825 states and 16255 transitions. Second operand has 6 states, 5 states have (on average 246.0) internal successors, (1230), 6 states have internal predecessors, (1230), 3 states have call successors, (360), 2 states have call predecessors, (360), 3 states have return successors, (360), 2 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:45,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:45,300 INFO L93 Difference]: Finished difference Result 9945 states and 16427 transitions. [2024-11-22 03:09:45,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:09:45,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 246.0) internal successors, (1230), 6 states have internal predecessors, (1230), 3 states have call successors, (360), 2 states have call predecessors, (360), 3 states have return successors, (360), 2 states have call predecessors, (360), 3 states have call successors, (360) Word has length 3021 [2024-11-22 03:09:45,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:45,328 INFO L225 Difference]: With dead ends: 9945 [2024-11-22 03:09:45,328 INFO L226 Difference]: Without dead ends: 9831 [2024-11-22 03:09:45,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3026 GetRequests, 3020 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:45,334 INFO L432 NwaCegarLoop]: 5537 mSDtfsCounter, 1 mSDsluCounter, 21415 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26952 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:45,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26952 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 03:09:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2024-11-22 03:09:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 9831. [2024-11-22 03:09:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9831 states, 9291 states have (on average 1.6343773544290174) internal successors, (15185), 9291 states have internal predecessors, (15185), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-22 03:09:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9831 states to 9831 states and 16261 transitions. [2024-11-22 03:09:45,592 INFO L78 Accepts]: Start accepts. Automaton has 9831 states and 16261 transitions. Word has length 3021 [2024-11-22 03:09:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:45,595 INFO L471 AbstractCegarLoop]: Abstraction has 9831 states and 16261 transitions. [2024-11-22 03:09:45,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 246.0) internal successors, (1230), 6 states have internal predecessors, (1230), 3 states have call successors, (360), 2 states have call predecessors, (360), 3 states have return successors, (360), 2 states have call predecessors, (360), 3 states have call successors, (360) [2024-11-22 03:09:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9831 states and 16261 transitions. [2024-11-22 03:09:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3023 [2024-11-22 03:09:45,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:45,754 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1] [2024-11-22 03:09:45,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-22 03:09:45,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 03:09:45,957 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:45,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -957568209, now seen corresponding path program 1 times [2024-11-22 03:09:45,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:45,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110644455] [2024-11-22 03:09:45,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:45,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 810 proven. 267 refuted. 0 times theorem prover too weak. 257403 trivial. 0 not checked. [2024-11-22 03:09:48,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:09:48,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110644455] [2024-11-22 03:09:48,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110644455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:09:48,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290182032] [2024-11-22 03:09:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:48,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:09:48,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:09:48,175 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:09:48,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 03:09:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:09:49,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 6608 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 03:09:49,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:09:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 258480 backedges. 2864 proven. 0 refuted. 0 times theorem prover too weak. 255616 trivial. 0 not checked. [2024-11-22 03:09:49,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:09:49,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290182032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:09:49,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:09:49,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 03:09:49,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815001736] [2024-11-22 03:09:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:09:49,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 03:09:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:09:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 03:09:49,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:49,279 INFO L87 Difference]: Start difference. First operand 9831 states and 16261 transitions. Second operand has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:09:49,357 INFO L93 Difference]: Finished difference Result 10005 states and 16517 transitions. [2024-11-22 03:09:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:09:49,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) Word has length 3022 [2024-11-22 03:09:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:09:49,379 INFO L225 Difference]: With dead ends: 10005 [2024-11-22 03:09:49,379 INFO L226 Difference]: Without dead ends: 9858 [2024-11-22 03:09:49,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3027 GetRequests, 3021 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:09:49,385 INFO L432 NwaCegarLoop]: 5897 mSDtfsCounter, 9 mSDsluCounter, 11781 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17678 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:09:49,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17678 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:09:49,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9858 states. [2024-11-22 03:09:49,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9858 to 9858. [2024-11-22 03:09:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9858 states, 9318 states have (on average 1.6338270015024683) internal successors, (15224), 9318 states have internal predecessors, (15224), 538 states have call successors, (538), 1 states have call predecessors, (538), 1 states have return successors, (538), 538 states have call predecessors, (538), 538 states have call successors, (538) [2024-11-22 03:09:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9858 states to 9858 states and 16300 transitions. [2024-11-22 03:09:49,632 INFO L78 Accepts]: Start accepts. Automaton has 9858 states and 16300 transitions. Word has length 3022 [2024-11-22 03:09:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:09:49,634 INFO L471 AbstractCegarLoop]: Abstraction has 9858 states and 16300 transitions. [2024-11-22 03:09:49,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 2 states have call successors, (360), 2 states have call predecessors, (360), 2 states have return successors, (360), 2 states have call predecessors, (360), 2 states have call successors, (360) [2024-11-22 03:09:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 9858 states and 16300 transitions. [2024-11-22 03:09:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3023 [2024-11-22 03:09:49,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:09:49,696 INFO L215 NwaCegarLoop]: trace histogram [360, 360, 360, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1] [2024-11-22 03:09:49,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 03:09:49,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 03:09:49,897 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:09:49,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:09:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2086805995, now seen corresponding path program 1 times [2024-11-22 03:09:49,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:09:49,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608249749] [2024-11-22 03:09:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:09:49,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:09:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat