./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem18_label49.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 48c9603bf6ce63a9572b5066f27455001f3fb8408a4f5e67f60047c25bceecef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:58:46,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:58:47,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:58:47,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:58:47,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:58:47,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:58:47,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:58:47,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:58:47,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:58:47,031 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:58:47,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:58:47,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:58:47,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:58:47,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:58:47,032 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:58:47,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:58:47,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:58:47,033 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:58:47,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:58:47,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:58:47,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:58:47,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:58:47,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:58:47,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:58:47,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:58:47,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:58:47,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:58:47,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:58:47,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:58:47,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:58:47,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48c9603bf6ce63a9572b5066f27455001f3fb8408a4f5e67f60047c25bceecef [2024-11-18 10:58:47,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:58:47,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:58:47,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:58:47,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:58:47,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:58:47,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label49.c [2024-11-18 10:58:48,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:58:48,888 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:58:48,889 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label49.c [2024-11-18 10:58:48,917 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce10fc9cd/7b061c3d8fe84e46a95a18e0aa02445e/FLAG593aea40d [2024-11-18 10:58:49,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce10fc9cd/7b061c3d8fe84e46a95a18e0aa02445e [2024-11-18 10:58:49,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:58:49,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:58:49,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:58:49,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:58:49,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:58:49,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:49" (1/1) ... [2024-11-18 10:58:49,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cdcfea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:49, skipping insertion in model container [2024-11-18 10:58:49,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:58:49" (1/1) ... [2024-11-18 10:58:49,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:58:49,412 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/eca-rers2012/Problem18_label49.c[2595,2608] [2024-11-18 10:58:49,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:58:49,992 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:58:50,011 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/eca-rers2012/Problem18_label49.c[2595,2608] [2024-11-18 10:58:50,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:58:50,231 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:58:50,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50 WrapperNode [2024-11-18 10:58:50,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:58:50,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:58:50,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:58:50,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:58:50,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,465 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-11-18 10:58:50,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:58:50,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:58:50,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:58:50,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:58:50,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,562 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 10:58:50,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:58:50,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:58:50,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:58:50,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:58:50,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (1/1) ... [2024-11-18 10:58:50,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:58:50,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:58:50,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 10:58:50,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 10:58:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:58:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:58:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:58:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:58:50,946 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:58:50,948 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:58:53,550 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-18 10:58:53,550 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:58:53,582 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:58:53,587 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:58:53,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:53 BoogieIcfgContainer [2024-11-18 10:58:53,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:58:53,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:58:53,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:58:53,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:58:53,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:58:49" (1/3) ... [2024-11-18 10:58:53,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1487ca6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:53, skipping insertion in model container [2024-11-18 10:58:53,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:58:50" (2/3) ... [2024-11-18 10:58:53,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1487ca6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:58:53, skipping insertion in model container [2024-11-18 10:58:53,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:58:53" (3/3) ... [2024-11-18 10:58:53,595 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label49.c [2024-11-18 10:58:53,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:58:53,609 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:58:53,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:58:53,706 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;@7310211d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:58:53,706 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:58:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:53,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-18 10:58:53,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:58:53,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:58:53,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:58:53,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:58:53,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2024-11-18 10:58:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:58:53,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858143219] [2024-11-18 10:58:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:58:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:58:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:58:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:58:53,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:58:53,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858143219] [2024-11-18 10:58:53,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858143219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:58:53,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:58:53,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:58:53,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432724318] [2024-11-18 10:58:53,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:58:53,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:58:53,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:58:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:58:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:58:54,000 INFO L87 Difference]: Start difference. First operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:58:56,391 INFO L93 Difference]: Finished difference Result 2205 states and 4266 transitions. [2024-11-18 10:58:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:58:56,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-18 10:58:56,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:58:56,420 INFO L225 Difference]: With dead ends: 2205 [2024-11-18 10:58:56,421 INFO L226 Difference]: Without dead ends: 1384 [2024-11-18 10:58:56,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:58:56,428 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 697 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:58:56,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 430 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 10:58:56,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-18 10:58:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-18 10:58:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 1.6514822848879247) internal successors, (2284), 1383 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:56,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2284 transitions. [2024-11-18 10:58:56,518 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2284 transitions. Word has length 22 [2024-11-18 10:58:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:58:56,518 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2284 transitions. [2024-11-18 10:58:56,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2284 transitions. [2024-11-18 10:58:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 10:58:56,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:58:56,521 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:58:56,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:58:56,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:58:56,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:58:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1242209805, now seen corresponding path program 1 times [2024-11-18 10:58:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:58:56,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090295891] [2024-11-18 10:58:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:58:56,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:58:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:58:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:58:56,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:58:56,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090295891] [2024-11-18 10:58:56,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090295891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:58:56,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:58:56,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:58:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292045360] [2024-11-18 10:58:56,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:58:56,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:58:56,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:58:56,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:58:56,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:58:56,719 INFO L87 Difference]: Start difference. First operand 1384 states and 2284 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:58:58,998 INFO L93 Difference]: Finished difference Result 4146 states and 6847 transitions. [2024-11-18 10:58:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:58:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-18 10:58:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:58:59,008 INFO L225 Difference]: With dead ends: 4146 [2024-11-18 10:58:59,008 INFO L226 Difference]: Without dead ends: 2764 [2024-11-18 10:58:59,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:58:59,010 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 712 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:58:59,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 531 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-18 10:58:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-11-18 10:58:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2024-11-18 10:58:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.404632645674991) internal successors, (3881), 2763 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3881 transitions. [2024-11-18 10:58:59,052 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3881 transitions. Word has length 88 [2024-11-18 10:58:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:58:59,052 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3881 transitions. [2024-11-18 10:58:59,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:58:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3881 transitions. [2024-11-18 10:58:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 10:58:59,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:58:59,057 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:58:59,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:58:59,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:58:59,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:58:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1538885931, now seen corresponding path program 1 times [2024-11-18 10:58:59,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:58:59,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090640202] [2024-11-18 10:58:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:58:59,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:58:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:58:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:58:59,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:58:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090640202] [2024-11-18 10:58:59,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090640202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:58:59,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:58:59,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:58:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259698513] [2024-11-18 10:58:59,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:58:59,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:58:59,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:58:59,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:58:59,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:58:59,170 INFO L87 Difference]: Start difference. First operand 2764 states and 3881 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:01,085 INFO L93 Difference]: Finished difference Result 8286 states and 11638 transitions. [2024-11-18 10:59:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:01,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-18 10:59:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:01,100 INFO L225 Difference]: With dead ends: 8286 [2024-11-18 10:59:01,100 INFO L226 Difference]: Without dead ends: 5524 [2024-11-18 10:59:01,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:01,105 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 707 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:01,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 435 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 10:59:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2024-11-18 10:59:01,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 4834. [2024-11-18 10:59:01,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4834 states, 4833 states have (on average 1.2971239395820402) internal successors, (6269), 4833 states have internal predecessors, (6269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4834 states to 4834 states and 6269 transitions. [2024-11-18 10:59:01,175 INFO L78 Accepts]: Start accepts. Automaton has 4834 states and 6269 transitions. Word has length 89 [2024-11-18 10:59:01,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:01,175 INFO L471 AbstractCegarLoop]: Abstraction has 4834 states and 6269 transitions. [2024-11-18 10:59:01,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4834 states and 6269 transitions. [2024-11-18 10:59:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-18 10:59:01,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:01,179 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:01,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:59:01,181 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:01,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash 227131977, now seen corresponding path program 1 times [2024-11-18 10:59:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480164710] [2024-11-18 10:59:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 10:59:01,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:01,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480164710] [2024-11-18 10:59:01,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480164710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:01,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:01,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:01,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474243674] [2024-11-18 10:59:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:01,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:59:01,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:59:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:59:01,649 INFO L87 Difference]: Start difference. First operand 4834 states and 6269 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:04,289 INFO L93 Difference]: Finished difference Result 12426 states and 15644 transitions. [2024-11-18 10:59:04,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:59:04,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2024-11-18 10:59:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:04,313 INFO L225 Difference]: With dead ends: 12426 [2024-11-18 10:59:04,313 INFO L226 Difference]: Without dead ends: 7594 [2024-11-18 10:59:04,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:59:04,322 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4348 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:04,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 641 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 4348 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 10:59:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7594 states. [2024-11-18 10:59:04,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7594 to 6904. [2024-11-18 10:59:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 6903 states have (on average 1.2358394900767782) internal successors, (8531), 6903 states have internal predecessors, (8531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 8531 transitions. [2024-11-18 10:59:04,453 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 8531 transitions. Word has length 209 [2024-11-18 10:59:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:04,455 INFO L471 AbstractCegarLoop]: Abstraction has 6904 states and 8531 transitions. [2024-11-18 10:59:04,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 8531 transitions. [2024-11-18 10:59:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-18 10:59:04,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:04,462 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:04,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:59:04,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:04,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:04,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1583891810, now seen corresponding path program 1 times [2024-11-18 10:59:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:04,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134490192] [2024-11-18 10:59:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:04,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 10:59:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:04,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134490192] [2024-11-18 10:59:04,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134490192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:04,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:04,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434621765] [2024-11-18 10:59:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:04,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:59:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:04,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:59:04,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:59:04,883 INFO L87 Difference]: Start difference. First operand 6904 states and 8531 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:06,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:06,800 INFO L93 Difference]: Finished difference Result 15239 states and 18535 transitions. [2024-11-18 10:59:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:59:06,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-18 10:59:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:06,821 INFO L225 Difference]: With dead ends: 15239 [2024-11-18 10:59:06,822 INFO L226 Difference]: Without dead ends: 8284 [2024-11-18 10:59:06,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:59:06,828 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 513 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:06,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 640 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 10:59:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2024-11-18 10:59:06,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 8284. [2024-11-18 10:59:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8284 states, 8283 states have (on average 1.154291923216226) internal successors, (9561), 8283 states have internal predecessors, (9561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8284 states to 8284 states and 9561 transitions. [2024-11-18 10:59:06,922 INFO L78 Accepts]: Start accepts. Automaton has 8284 states and 9561 transitions. Word has length 391 [2024-11-18 10:59:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:06,923 INFO L471 AbstractCegarLoop]: Abstraction has 8284 states and 9561 transitions. [2024-11-18 10:59:06,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8284 states and 9561 transitions. [2024-11-18 10:59:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-11-18 10:59:06,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:06,927 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:06,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:59:06,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:06,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:06,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1070484450, now seen corresponding path program 1 times [2024-11-18 10:59:06,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:06,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169197305] [2024-11-18 10:59:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-18 10:59:07,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:07,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169197305] [2024-11-18 10:59:07,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169197305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:07,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:07,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:59:07,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203698125] [2024-11-18 10:59:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:07,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:07,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:07,181 INFO L87 Difference]: Start difference. First operand 8284 states and 9561 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:08,875 INFO L93 Difference]: Finished difference Result 20016 states and 22949 transitions. [2024-11-18 10:59:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:08,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 406 [2024-11-18 10:59:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:08,897 INFO L225 Difference]: With dead ends: 20016 [2024-11-18 10:59:08,897 INFO L226 Difference]: Without dead ends: 11734 [2024-11-18 10:59:08,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:08,906 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 466 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:08,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 77 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 10:59:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2024-11-18 10:59:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11734. [2024-11-18 10:59:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11734 states, 11733 states have (on average 1.119151112247507) internal successors, (13131), 11733 states have internal predecessors, (13131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:09,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11734 states to 11734 states and 13131 transitions. [2024-11-18 10:59:09,034 INFO L78 Accepts]: Start accepts. Automaton has 11734 states and 13131 transitions. Word has length 406 [2024-11-18 10:59:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:09,035 INFO L471 AbstractCegarLoop]: Abstraction has 11734 states and 13131 transitions. [2024-11-18 10:59:09,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 11734 states and 13131 transitions. [2024-11-18 10:59:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-18 10:59:09,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:09,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:09,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:59:09,043 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:09,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash 613116622, now seen corresponding path program 1 times [2024-11-18 10:59:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:09,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198169687] [2024-11-18 10:59:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:59:09,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:09,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198169687] [2024-11-18 10:59:09,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198169687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:09,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:09,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:09,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985323385] [2024-11-18 10:59:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:09,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:09,511 INFO L87 Difference]: Start difference. First operand 11734 states and 13131 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:11,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:11,150 INFO L93 Difference]: Finished difference Result 32436 states and 36566 transitions. [2024-11-18 10:59:11,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:11,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 414 [2024-11-18 10:59:11,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:11,181 INFO L225 Difference]: With dead ends: 32436 [2024-11-18 10:59:11,181 INFO L226 Difference]: Without dead ends: 20704 [2024-11-18 10:59:11,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:11,196 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 600 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:11,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 979 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 10:59:11,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20704 states. [2024-11-18 10:59:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20704 to 20014. [2024-11-18 10:59:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20014 states, 20013 states have (on average 1.095537900364763) internal successors, (21925), 20013 states have internal predecessors, (21925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20014 states to 20014 states and 21925 transitions. [2024-11-18 10:59:11,515 INFO L78 Accepts]: Start accepts. Automaton has 20014 states and 21925 transitions. Word has length 414 [2024-11-18 10:59:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:11,515 INFO L471 AbstractCegarLoop]: Abstraction has 20014 states and 21925 transitions. [2024-11-18 10:59:11,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 20014 states and 21925 transitions. [2024-11-18 10:59:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-18 10:59:11,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:11,524 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:11,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:59:11,525 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:11,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:11,526 INFO L85 PathProgramCache]: Analyzing trace with hash 488569505, now seen corresponding path program 1 times [2024-11-18 10:59:11,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:11,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142565301] [2024-11-18 10:59:11,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:11,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-18 10:59:11,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:11,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142565301] [2024-11-18 10:59:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142565301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:11,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:11,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:11,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547845669] [2024-11-18 10:59:11,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:11,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:11,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:11,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:11,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:11,875 INFO L87 Difference]: Start difference. First operand 20014 states and 21925 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:13,514 INFO L93 Difference]: Finished difference Result 46236 states and 50984 transitions. [2024-11-18 10:59:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:13,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2024-11-18 10:59:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:13,548 INFO L225 Difference]: With dead ends: 46236 [2024-11-18 10:59:13,549 INFO L226 Difference]: Without dead ends: 22774 [2024-11-18 10:59:13,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:13,564 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 682 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:13,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1120 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 10:59:13,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22774 states. [2024-11-18 10:59:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22774 to 20704. [2024-11-18 10:59:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20704 states, 20703 states have (on average 1.0554025986571995) internal successors, (21850), 20703 states have internal predecessors, (21850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20704 states to 20704 states and 21850 transitions. [2024-11-18 10:59:13,755 INFO L78 Accepts]: Start accepts. Automaton has 20704 states and 21850 transitions. Word has length 421 [2024-11-18 10:59:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:13,756 INFO L471 AbstractCegarLoop]: Abstraction has 20704 states and 21850 transitions. [2024-11-18 10:59:13,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 20704 states and 21850 transitions. [2024-11-18 10:59:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-18 10:59:13,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:13,761 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:13,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:59:13,761 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:13,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1598288203, now seen corresponding path program 1 times [2024-11-18 10:59:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:13,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302662964] [2024-11-18 10:59:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-18 10:59:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302662964] [2024-11-18 10:59:14,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302662964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:14,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:14,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:14,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144116551] [2024-11-18 10:59:14,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:14,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:14,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:14,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:14,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:14,044 INFO L87 Difference]: Start difference. First operand 20704 states and 21850 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:15,478 INFO L93 Difference]: Finished difference Result 46236 states and 49051 transitions. [2024-11-18 10:59:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:15,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 492 [2024-11-18 10:59:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:15,511 INFO L225 Difference]: With dead ends: 46236 [2024-11-18 10:59:15,511 INFO L226 Difference]: Without dead ends: 23464 [2024-11-18 10:59:15,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:15,528 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 688 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:15,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 936 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23464 states. [2024-11-18 10:59:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23464 to 23464. [2024-11-18 10:59:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23463 states have (on average 1.0528065464774325) internal successors, (24702), 23463 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 24702 transitions. [2024-11-18 10:59:15,866 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 24702 transitions. Word has length 492 [2024-11-18 10:59:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:15,867 INFO L471 AbstractCegarLoop]: Abstraction has 23464 states and 24702 transitions. [2024-11-18 10:59:15,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 24702 transitions. [2024-11-18 10:59:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2024-11-18 10:59:15,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:15,878 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:15,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:59:15,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:15,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1544214007, now seen corresponding path program 1 times [2024-11-18 10:59:15,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:15,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127211713] [2024-11-18 10:59:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-18 10:59:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:16,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127211713] [2024-11-18 10:59:16,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127211713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:16,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:16,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567242671] [2024-11-18 10:59:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:16,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:16,764 INFO L87 Difference]: Start difference. First operand 23464 states and 24702 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:17,960 INFO L93 Difference]: Finished difference Result 46926 states and 49402 transitions. [2024-11-18 10:59:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 655 [2024-11-18 10:59:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:17,985 INFO L225 Difference]: With dead ends: 46926 [2024-11-18 10:59:17,985 INFO L226 Difference]: Without dead ends: 23464 [2024-11-18 10:59:18,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:18,002 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 775 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:18,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 746 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 10:59:18,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23464 states. [2024-11-18 10:59:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23464 to 23464. [2024-11-18 10:59:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23463 states have (on average 1.046583983292844) internal successors, (24556), 23463 states have internal predecessors, (24556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 24556 transitions. [2024-11-18 10:59:18,267 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 24556 transitions. Word has length 655 [2024-11-18 10:59:18,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:18,268 INFO L471 AbstractCegarLoop]: Abstraction has 23464 states and 24556 transitions. [2024-11-18 10:59:18,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:18,268 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 24556 transitions. [2024-11-18 10:59:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-18 10:59:18,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:18,276 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:18,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:59:18,277 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:18,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1111044852, now seen corresponding path program 1 times [2024-11-18 10:59:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:18,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169022553] [2024-11-18 10:59:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2024-11-18 10:59:18,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:18,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169022553] [2024-11-18 10:59:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169022553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:18,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:18,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:18,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496275620] [2024-11-18 10:59:18,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:18,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:18,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:18,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:18,669 INFO L87 Difference]: Start difference. First operand 23464 states and 24556 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:19,542 INFO L93 Difference]: Finished difference Result 46948 states and 49132 transitions. [2024-11-18 10:59:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 698 [2024-11-18 10:59:19,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:19,564 INFO L225 Difference]: With dead ends: 46948 [2024-11-18 10:59:19,564 INFO L226 Difference]: Without dead ends: 23464 [2024-11-18 10:59:19,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:19,571 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:19,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 986 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:59:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23464 states. [2024-11-18 10:59:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23464 to 23464. [2024-11-18 10:59:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23463 states have (on average 1.0464135021097047) internal successors, (24552), 23463 states have internal predecessors, (24552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 24552 transitions. [2024-11-18 10:59:19,740 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 24552 transitions. Word has length 698 [2024-11-18 10:59:19,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:19,741 INFO L471 AbstractCegarLoop]: Abstraction has 23464 states and 24552 transitions. [2024-11-18 10:59:19,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 24552 transitions. [2024-11-18 10:59:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-18 10:59:19,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:19,749 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:19,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:59:19,749 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:19,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -761155750, now seen corresponding path program 1 times [2024-11-18 10:59:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:19,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846951797] [2024-11-18 10:59:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:19,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 621 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-18 10:59:20,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846951797] [2024-11-18 10:59:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846951797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:20,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664570695] [2024-11-18 10:59:20,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:20,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:59:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:59:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:59:20,428 INFO L87 Difference]: Start difference. First operand 23464 states and 24552 transitions. Second operand has 4 states, 4 states have (on average 152.25) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:22,663 INFO L93 Difference]: Finished difference Result 53826 states and 56582 transitions. [2024-11-18 10:59:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:59:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 711 [2024-11-18 10:59:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:22,693 INFO L225 Difference]: With dead ends: 53826 [2024-11-18 10:59:22,693 INFO L226 Difference]: Without dead ends: 30364 [2024-11-18 10:59:22,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:59:22,712 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 1400 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2645 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 3109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:22,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 90 Invalid, 3109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2645 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 10:59:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30364 states. [2024-11-18 10:59:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30364 to 29674. [2024-11-18 10:59:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29674 states, 29673 states have (on average 1.044147878542783) internal successors, (30983), 29673 states have internal predecessors, (30983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:23,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29674 states to 29674 states and 30983 transitions. [2024-11-18 10:59:23,039 INFO L78 Accepts]: Start accepts. Automaton has 29674 states and 30983 transitions. Word has length 711 [2024-11-18 10:59:23,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:23,039 INFO L471 AbstractCegarLoop]: Abstraction has 29674 states and 30983 transitions. [2024-11-18 10:59:23,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:23,039 INFO L276 IsEmpty]: Start isEmpty. Operand 29674 states and 30983 transitions. [2024-11-18 10:59:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1255 [2024-11-18 10:59:23,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:23,053 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:23,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:59:23,053 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:23,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1452084311, now seen corresponding path program 1 times [2024-11-18 10:59:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356682961] [2024-11-18 10:59:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:23,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 460 proven. 938 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-18 10:59:24,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:24,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356682961] [2024-11-18 10:59:24,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356682961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:59:24,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490729814] [2024-11-18 10:59:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:24,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:59:24,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:59:24,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:59:24,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:59:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:24,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:59:24,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:59:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2024-11-18 10:59:24,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:59:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490729814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:24,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:59:24,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-18 10:59:24,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480568234] [2024-11-18 10:59:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:24,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:24,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:24,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:59:24,969 INFO L87 Difference]: Start difference. First operand 29674 states and 30983 transitions. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:26,380 INFO L93 Difference]: Finished difference Result 59346 states and 61971 transitions. [2024-11-18 10:59:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1254 [2024-11-18 10:59:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:26,412 INFO L225 Difference]: With dead ends: 59346 [2024-11-18 10:59:26,413 INFO L226 Difference]: Without dead ends: 29674 [2024-11-18 10:59:26,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1260 GetRequests, 1254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:59:26,430 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 642 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:26,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 804 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29674 states. [2024-11-18 10:59:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29674 to 29674. [2024-11-18 10:59:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29674 states, 29673 states have (on average 1.0401374987362249) internal successors, (30864), 29673 states have internal predecessors, (30864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:26,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29674 states to 29674 states and 30864 transitions. [2024-11-18 10:59:26,673 INFO L78 Accepts]: Start accepts. Automaton has 29674 states and 30864 transitions. Word has length 1254 [2024-11-18 10:59:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:26,674 INFO L471 AbstractCegarLoop]: Abstraction has 29674 states and 30864 transitions. [2024-11-18 10:59:26,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:26,674 INFO L276 IsEmpty]: Start isEmpty. Operand 29674 states and 30864 transitions. [2024-11-18 10:59:26,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2024-11-18 10:59:26,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:26,690 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:26,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 10:59:26,890 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,SelfDestructingSolverStorable12 [2024-11-18 10:59:26,891 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:26,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 639595670, now seen corresponding path program 1 times [2024-11-18 10:59:26,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564400162] [2024-11-18 10:59:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 1322 proven. 614 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-18 10:59:28,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:28,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564400162] [2024-11-18 10:59:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564400162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:59:28,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959857848] [2024-11-18 10:59:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:28,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:59:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:59:28,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:59:28,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 10:59:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:28,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:59:28,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:59:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 1334 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-11-18 10:59:28,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:59:28,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959857848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:28,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:59:28,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-18 10:59:28,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845057256] [2024-11-18 10:59:28,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:28,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:28,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:28,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:28,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:59:28,791 INFO L87 Difference]: Start difference. First operand 29674 states and 30864 transitions. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:30,310 INFO L93 Difference]: Finished difference Result 69006 states and 72131 transitions. [2024-11-18 10:59:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1286 [2024-11-18 10:59:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:30,361 INFO L225 Difference]: With dead ends: 69006 [2024-11-18 10:59:30,361 INFO L226 Difference]: Without dead ends: 40024 [2024-11-18 10:59:30,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1292 GetRequests, 1286 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 10:59:30,386 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 632 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:30,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 148 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40024 states. [2024-11-18 10:59:30,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40024 to 39334. [2024-11-18 10:59:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39334 states, 39333 states have (on average 1.038415579793049) internal successors, (40844), 39333 states have internal predecessors, (40844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39334 states to 39334 states and 40844 transitions. [2024-11-18 10:59:30,792 INFO L78 Accepts]: Start accepts. Automaton has 39334 states and 40844 transitions. Word has length 1286 [2024-11-18 10:59:30,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:30,792 INFO L471 AbstractCegarLoop]: Abstraction has 39334 states and 40844 transitions. [2024-11-18 10:59:30,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 39334 states and 40844 transitions. [2024-11-18 10:59:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1347 [2024-11-18 10:59:30,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:30,810 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:30,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 10:59:31,010 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,SelfDestructingSolverStorable13 [2024-11-18 10:59:31,011 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:31,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1276530043, now seen corresponding path program 1 times [2024-11-18 10:59:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175020611] [2024-11-18 10:59:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1474 proven. 0 refuted. 0 times theorem prover too weak. 1133 trivial. 0 not checked. [2024-11-18 10:59:32,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:32,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175020611] [2024-11-18 10:59:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175020611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:32,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:32,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652902793] [2024-11-18 10:59:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:32,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:32,124 INFO L87 Difference]: Start difference. First operand 39334 states and 40844 transitions. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:33,480 INFO L93 Difference]: Finished difference Result 77976 states and 80995 transitions. [2024-11-18 10:59:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1346 [2024-11-18 10:59:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:33,526 INFO L225 Difference]: With dead ends: 77976 [2024-11-18 10:59:33,527 INFO L226 Difference]: Without dead ends: 39334 [2024-11-18 10:59:33,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:33,552 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 658 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:33,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 758 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:59:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39334 states. [2024-11-18 10:59:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39334 to 39334. [2024-11-18 10:59:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39334 states, 39333 states have (on average 1.0367884473597233) internal successors, (40780), 39333 states have internal predecessors, (40780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39334 states to 39334 states and 40780 transitions. [2024-11-18 10:59:33,880 INFO L78 Accepts]: Start accepts. Automaton has 39334 states and 40780 transitions. Word has length 1346 [2024-11-18 10:59:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:33,880 INFO L471 AbstractCegarLoop]: Abstraction has 39334 states and 40780 transitions. [2024-11-18 10:59:33,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 39334 states and 40780 transitions. [2024-11-18 10:59:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1358 [2024-11-18 10:59:33,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:33,897 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:33,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 10:59:33,898 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:33,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:33,898 INFO L85 PathProgramCache]: Analyzing trace with hash 57101728, now seen corresponding path program 1 times [2024-11-18 10:59:33,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:33,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667838246] [2024-11-18 10:59:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:33,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 1636 trivial. 0 not checked. [2024-11-18 10:59:34,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:34,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667838246] [2024-11-18 10:59:34,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667838246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:34,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:34,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:34,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638940377] [2024-11-18 10:59:34,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:34,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:34,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:34,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:34,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:34,805 INFO L87 Difference]: Start difference. First operand 39334 states and 40780 transitions. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:36,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:36,294 INFO L93 Difference]: Finished difference Result 85566 states and 89074 transitions. [2024-11-18 10:59:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:36,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1357 [2024-11-18 10:59:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:36,344 INFO L225 Difference]: With dead ends: 85566 [2024-11-18 10:59:36,344 INFO L226 Difference]: Without dead ends: 46924 [2024-11-18 10:59:36,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:36,369 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 611 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:36,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 269 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46924 states. [2024-11-18 10:59:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46924 to 40024. [2024-11-18 10:59:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40024 states, 40023 states have (on average 1.0364040676610948) internal successors, (41480), 40023 states have internal predecessors, (41480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40024 states to 40024 states and 41480 transitions. [2024-11-18 10:59:36,741 INFO L78 Accepts]: Start accepts. Automaton has 40024 states and 41480 transitions. Word has length 1357 [2024-11-18 10:59:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:36,742 INFO L471 AbstractCegarLoop]: Abstraction has 40024 states and 41480 transitions. [2024-11-18 10:59:36,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 40024 states and 41480 transitions. [2024-11-18 10:59:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1389 [2024-11-18 10:59:36,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:36,763 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:36,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 10:59:36,763 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:36,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1000439274, now seen corresponding path program 1 times [2024-11-18 10:59:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:36,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730349704] [2024-11-18 10:59:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:36,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2075 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2024-11-18 10:59:37,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:37,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730349704] [2024-11-18 10:59:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730349704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:37,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:37,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:37,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880303656] [2024-11-18 10:59:37,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:37,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:37,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:37,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:37,462 INFO L87 Difference]: Start difference. First operand 40024 states and 41480 transitions. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:38,956 INFO L93 Difference]: Finished difference Result 91086 states and 94712 transitions. [2024-11-18 10:59:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:38,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1388 [2024-11-18 10:59:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:39,008 INFO L225 Difference]: With dead ends: 91086 [2024-11-18 10:59:39,008 INFO L226 Difference]: Without dead ends: 51064 [2024-11-18 10:59:39,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:39,035 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 672 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:39,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 967 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1793 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51064 states. [2024-11-18 10:59:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51064 to 49684. [2024-11-18 10:59:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49684 states, 49683 states have (on average 1.034820763641487) internal successors, (51413), 49683 states have internal predecessors, (51413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49684 states to 49684 states and 51413 transitions. [2024-11-18 10:59:39,424 INFO L78 Accepts]: Start accepts. Automaton has 49684 states and 51413 transitions. Word has length 1388 [2024-11-18 10:59:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:39,425 INFO L471 AbstractCegarLoop]: Abstraction has 49684 states and 51413 transitions. [2024-11-18 10:59:39,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 49684 states and 51413 transitions. [2024-11-18 10:59:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1548 [2024-11-18 10:59:39,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:39,449 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 10:59:39,449 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash -296448399, now seen corresponding path program 1 times [2024-11-18 10:59:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508918704] [2024-11-18 10:59:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1128 proven. 0 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2024-11-18 10:59:40,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:40,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508918704] [2024-11-18 10:59:40,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508918704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:40,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:40,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:40,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776557782] [2024-11-18 10:59:40,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:40,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:40,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:40,202 INFO L87 Difference]: Start difference. First operand 49684 states and 51413 transitions. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:41,888 INFO L93 Difference]: Finished difference Result 117996 states and 122440 transitions. [2024-11-18 10:59:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:41,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1547 [2024-11-18 10:59:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:41,969 INFO L225 Difference]: With dead ends: 117996 [2024-11-18 10:59:41,969 INFO L226 Difference]: Without dead ends: 69004 [2024-11-18 10:59:42,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:42,007 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 302 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:42,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 82 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 10:59:42,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69004 states. [2024-11-18 10:59:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69004 to 69004. [2024-11-18 10:59:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69004 states, 69003 states have (on average 1.0360274190977203) internal successors, (71489), 69003 states have internal predecessors, (71489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69004 states to 69004 states and 71489 transitions. [2024-11-18 10:59:42,614 INFO L78 Accepts]: Start accepts. Automaton has 69004 states and 71489 transitions. Word has length 1547 [2024-11-18 10:59:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:42,615 INFO L471 AbstractCegarLoop]: Abstraction has 69004 states and 71489 transitions. [2024-11-18 10:59:42,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 69004 states and 71489 transitions. [2024-11-18 10:59:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1787 [2024-11-18 10:59:42,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:42,660 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:42,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 10:59:42,660 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:42,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:42,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1479058987, now seen corresponding path program 1 times [2024-11-18 10:59:42,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:42,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391347764] [2024-11-18 10:59:42,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:42,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 2044 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2024-11-18 10:59:43,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:43,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391347764] [2024-11-18 10:59:43,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391347764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:43,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:43,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:43,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706796228] [2024-11-18 10:59:43,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:43,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:43,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:43,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:43,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:43,976 INFO L87 Difference]: Start difference. First operand 69004 states and 71489 transitions. Second operand has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:45,593 INFO L93 Difference]: Finished difference Result 149736 states and 155586 transitions. [2024-11-18 10:59:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1786 [2024-11-18 10:59:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:45,675 INFO L225 Difference]: With dead ends: 149736 [2024-11-18 10:59:45,675 INFO L226 Difference]: Without dead ends: 81424 [2024-11-18 10:59:45,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:45,689 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 493 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:45,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 937 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:59:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81424 states. [2024-11-18 10:59:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81424 to 80044. [2024-11-18 10:59:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80044 states, 80043 states have (on average 1.0345939057756457) internal successors, (82812), 80043 states have internal predecessors, (82812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80044 states to 80044 states and 82812 transitions. [2024-11-18 10:59:46,627 INFO L78 Accepts]: Start accepts. Automaton has 80044 states and 82812 transitions. Word has length 1786 [2024-11-18 10:59:46,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:46,628 INFO L471 AbstractCegarLoop]: Abstraction has 80044 states and 82812 transitions. [2024-11-18 10:59:46,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:46,629 INFO L276 IsEmpty]: Start isEmpty. Operand 80044 states and 82812 transitions. [2024-11-18 10:59:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1833 [2024-11-18 10:59:46,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:46,863 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:46,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 10:59:46,864 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:46,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash 790833550, now seen corresponding path program 1 times [2024-11-18 10:59:46,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:46,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893290339] [2024-11-18 10:59:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:46,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3035 backedges. 983 proven. 1287 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2024-11-18 10:59:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893290339] [2024-11-18 10:59:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893290339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:59:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830099805] [2024-11-18 10:59:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:49,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:59:49,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:59:49,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:59:49,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 10:59:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:49,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 2059 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:59:49,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:59:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3035 backedges. 1415 proven. 0 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked. [2024-11-18 10:59:49,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:59:49,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830099805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:49,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:59:49,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-18 10:59:49,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87182054] [2024-11-18 10:59:49,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:49,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:49,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:49,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:49,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:59:49,797 INFO L87 Difference]: Start difference. First operand 80044 states and 82812 transitions. Second operand has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:51,332 INFO L93 Difference]: Finished difference Result 159396 states and 164931 transitions. [2024-11-18 10:59:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:51,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1832 [2024-11-18 10:59:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:51,418 INFO L225 Difference]: With dead ends: 159396 [2024-11-18 10:59:51,418 INFO L226 Difference]: Without dead ends: 80044 [2024-11-18 10:59:51,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1837 GetRequests, 1832 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:59:51,455 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 288 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:51,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 136 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:59:51,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80044 states. [2024-11-18 10:59:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80044 to 79354. [2024-11-18 10:59:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79354 states, 79353 states have (on average 1.0235907905183168) internal successors, (81225), 79353 states have internal predecessors, (81225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79354 states to 79354 states and 81225 transitions. [2024-11-18 10:59:52,544 INFO L78 Accepts]: Start accepts. Automaton has 79354 states and 81225 transitions. Word has length 1832 [2024-11-18 10:59:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:52,548 INFO L471 AbstractCegarLoop]: Abstraction has 79354 states and 81225 transitions. [2024-11-18 10:59:52,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 79354 states and 81225 transitions. [2024-11-18 10:59:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2003 [2024-11-18 10:59:52,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:52,669 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:52,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 10:59:52,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:59:52,870 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:52,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash 840913289, now seen corresponding path program 1 times [2024-11-18 10:59:52,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:52,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635351437] [2024-11-18 10:59:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:59:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 2202 proven. 0 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2024-11-18 10:59:54,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:59:54,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635351437] [2024-11-18 10:59:54,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635351437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:59:54,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:59:54,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:59:54,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771626757] [2024-11-18 10:59:54,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:59:54,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:59:54,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:59:54,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:59:54,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:54,382 INFO L87 Difference]: Start difference. First operand 79354 states and 81225 transitions. Second operand has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:59:56,104 INFO L93 Difference]: Finished difference Result 177336 states and 181628 transitions. [2024-11-18 10:59:56,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:59:56,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2002 [2024-11-18 10:59:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:59:56,222 INFO L225 Difference]: With dead ends: 177336 [2024-11-18 10:59:56,223 INFO L226 Difference]: Without dead ends: 98674 [2024-11-18 10:59:56,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:59:56,277 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 615 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:59:56,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 207 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:59:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98674 states. [2024-11-18 10:59:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98674 to 98674. [2024-11-18 10:59:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98674 states, 98673 states have (on average 1.0226505731051048) internal successors, (100908), 98673 states have internal predecessors, (100908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98674 states to 98674 states and 100908 transitions. [2024-11-18 10:59:57,630 INFO L78 Accepts]: Start accepts. Automaton has 98674 states and 100908 transitions. Word has length 2002 [2024-11-18 10:59:57,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:59:57,631 INFO L471 AbstractCegarLoop]: Abstraction has 98674 states and 100908 transitions. [2024-11-18 10:59:57,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:59:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 98674 states and 100908 transitions. [2024-11-18 10:59:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2304 [2024-11-18 10:59:57,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:59:57,759 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:59:57,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 10:59:57,759 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:59:57,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:59:57,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2070858025, now seen corresponding path program 1 times [2024-11-18 10:59:57,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:59:57,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80356872] [2024-11-18 10:59:57,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:59:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:59:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:00:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4654 backedges. 3565 proven. 81 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-18 11:00:02,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:00:02,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80356872] [2024-11-18 11:00:02,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80356872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:00:02,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101502302] [2024-11-18 11:00:02,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:00:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:00:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:00:02,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:00:02,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 11:00:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:00:02,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 11:00:02,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:00:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4654 backedges. 3498 proven. 107 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2024-11-18 11:00:03,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:00:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4654 backedges. 3285 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2024-11-18 11:00:06,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101502302] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-18 11:00:06,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-18 11:00:06,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2024-11-18 11:00:06,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584909253] [2024-11-18 11:00:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:00:06,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:00:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:00:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:00:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 11:00:06,382 INFO L87 Difference]: Start difference. First operand 98674 states and 100908 transitions. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:00:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:00:08,358 INFO L93 Difference]: Finished difference Result 199416 states and 204003 transitions. [2024-11-18 11:00:08,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:00:08,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2303 [2024-11-18 11:00:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:00:08,474 INFO L225 Difference]: With dead ends: 199416 [2024-11-18 11:00:08,474 INFO L226 Difference]: Without dead ends: 101434 [2024-11-18 11:00:08,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4611 GetRequests, 4604 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 11:00:08,527 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 471 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:00:08,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 86 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 11:00:08,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101434 states. [2024-11-18 11:00:09,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101434 to 100744. [2024-11-18 11:00:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100744 states, 100743 states have (on average 1.0225028041650537) internal successors, (103010), 100743 states have internal predecessors, (103010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:00:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100744 states to 100744 states and 103010 transitions. [2024-11-18 11:00:09,682 INFO L78 Accepts]: Start accepts. Automaton has 100744 states and 103010 transitions. Word has length 2303 [2024-11-18 11:00:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:00:09,683 INFO L471 AbstractCegarLoop]: Abstraction has 100744 states and 103010 transitions. [2024-11-18 11:00:09,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:00:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 100744 states and 103010 transitions. [2024-11-18 11:00:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2367 [2024-11-18 11:00:09,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:00:09,762 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:00:09,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 11:00:09,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:00:09,963 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:00:09,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:00:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1679169701, now seen corresponding path program 1 times [2024-11-18 11:00:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:00:09,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063873985] [2024-11-18 11:00:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:00:09,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms