./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label24.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/Problem11_label24.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 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:21:41,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:21:41,531 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:21:41,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:21:41,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:21:41,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:21:41,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:21:41,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:21:41,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:21:41,569 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:21:41,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:21:41,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:21:41,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:21:41,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:21:41,572 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:21:41,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:21:41,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:21:41,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:21:41,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:21:41,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:21:41,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:21:41,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:21:41,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:21:41,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:21:41,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:21:41,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:21:41,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:21:41,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:21:41,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:21:41,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:21:41,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:21:41,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:21:41,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:21:41,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:21:41,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:21:41,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:21:41,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:21:41,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:21:41,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:21:41,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:21:41,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:21:41,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:21:41,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63c3a28a771a7642d2d01d4b50ea8f0914adef37135dc9c64a20524a1e6d797b [2024-11-18 10:21:41,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:21:41,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:21:41,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:21:41,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:21:41,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:21:41,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2024-11-18 10:21:43,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:21:43,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:21:43,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2024-11-18 10:21:43,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c5ee737/321577231e4641f18fe855d4524a6d8c/FLAGd602a63a8 [2024-11-18 10:21:43,907 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c5ee737/321577231e4641f18fe855d4524a6d8c [2024-11-18 10:21:43,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:21:43,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:21:43,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:21:43,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:21:43,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:21:43,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:21:43" (1/1) ... [2024-11-18 10:21:43,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47278e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:43, skipping insertion in model container [2024-11-18 10:21:43,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:21:43" (1/1) ... [2024-11-18 10:21:43,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:21:44,195 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/Problem11_label24.c[7451,7464] [2024-11-18 10:21:44,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:21:44,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:21:44,461 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/Problem11_label24.c[7451,7464] [2024-11-18 10:21:44,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:21:44,605 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:21:44,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44 WrapperNode [2024-11-18 10:21:44,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:21:44,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:21:44,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:21:44,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:21:44,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,749 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-11-18 10:21:44,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:21:44,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:21:44,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:21:44,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:21:44,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,890 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 10:21:44,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:44,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:21:44,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:21:44,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:21:44,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:21:44,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (1/1) ... [2024-11-18 10:21:45,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:21:45,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:21:45,030 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 10:21:45,032 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 10:21:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:21:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:21:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:21:45,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:21:45,150 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:21:45,153 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:21:46,752 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-18 10:21:46,752 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:21:46,782 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:21:46,782 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:21:46,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:21:46 BoogieIcfgContainer [2024-11-18 10:21:46,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:21:46,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:21:46,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:21:46,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:21:46,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:21:43" (1/3) ... [2024-11-18 10:21:46,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bafe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:21:46, skipping insertion in model container [2024-11-18 10:21:46,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:21:44" (2/3) ... [2024-11-18 10:21:46,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bafe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:21:46, skipping insertion in model container [2024-11-18 10:21:46,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:21:46" (3/3) ... [2024-11-18 10:21:46,793 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2024-11-18 10:21:46,811 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:21:46,811 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:21:46,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:21:46,895 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;@2f8dc0aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:21:46,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:21:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 10:21:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 10:21:46,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:46,913 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, 1, 1, 1, 1, 1, 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 10:21:46,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:46,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2024-11-18 10:21:46,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:46,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969972774] [2024-11-18 10:21:46,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:46,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:47,309 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 10:21:47,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:47,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969972774] [2024-11-18 10:21:47,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969972774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:47,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:47,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:21:47,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258821487] [2024-11-18 10:21:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:47,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:47,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:47,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:47,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:47,353 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 10:21:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:48,432 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2024-11-18 10:21:48,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2024-11-18 10:21:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:48,456 INFO L225 Difference]: With dead ends: 776 [2024-11-18 10:21:48,456 INFO L226 Difference]: Without dead ends: 413 [2024-11-18 10:21:48,461 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 10:21:48,467 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 176 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:48,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 10:21:48,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-18 10:21:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2024-11-18 10:21:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 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 10:21:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2024-11-18 10:21:48,531 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 51 [2024-11-18 10:21:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:48,531 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2024-11-18 10:21:48,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 10:21:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2024-11-18 10:21:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 10:21:48,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:48,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:21:48,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:21:48,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:48,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:48,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1424628072, now seen corresponding path program 1 times [2024-11-18 10:21:48,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:48,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830601741] [2024-11-18 10:21:48,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:48,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:48,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:48,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830601741] [2024-11-18 10:21:48,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830601741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:48,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:48,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:21:48,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997256975] [2024-11-18 10:21:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:48,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:48,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:48,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:48,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:48,774 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 10:21:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:49,531 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2024-11-18 10:21:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:49,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2024-11-18 10:21:49,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:49,536 INFO L225 Difference]: With dead ends: 1209 [2024-11-18 10:21:49,536 INFO L226 Difference]: Without dead ends: 800 [2024-11-18 10:21:49,537 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 10:21:49,539 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:49,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:21:49,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-18 10:21:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2024-11-18 10:21:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 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 10:21:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2024-11-18 10:21:49,598 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 119 [2024-11-18 10:21:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:49,600 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2024-11-18 10:21:49,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 10:21:49,600 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2024-11-18 10:21:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 10:21:49,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:49,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:21:49,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:21:49,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:49,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1033925576, now seen corresponding path program 1 times [2024-11-18 10:21:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:49,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322475241] [2024-11-18 10:21:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:49,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:50,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:50,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322475241] [2024-11-18 10:21:50,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322475241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:50,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:50,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:21:50,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284543963] [2024-11-18 10:21:50,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:50,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:50,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:50,027 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 10:21:50,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:50,700 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2024-11-18 10:21:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:50,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2024-11-18 10:21:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:50,708 INFO L225 Difference]: With dead ends: 1942 [2024-11-18 10:21:50,709 INFO L226 Difference]: Without dead ends: 1157 [2024-11-18 10:21:50,711 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 10:21:50,712 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:50,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:21:50,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-18 10:21:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2024-11-18 10:21:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 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 10:21:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2024-11-18 10:21:50,751 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 120 [2024-11-18 10:21:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:50,753 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2024-11-18 10:21:50,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 10:21:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2024-11-18 10:21:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 10:21:50,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:50,761 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:21:50,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:21:50,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:50,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash -289166940, now seen corresponding path program 1 times [2024-11-18 10:21:50,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:50,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322524198] [2024-11-18 10:21:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:51,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:51,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322524198] [2024-11-18 10:21:51,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322524198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:51,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:51,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:21:51,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502579366] [2024-11-18 10:21:51,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:51,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:51,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:51,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:51,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:51,070 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 10:21:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:51,872 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2024-11-18 10:21:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:51,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2024-11-18 10:21:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:51,879 INFO L225 Difference]: With dead ends: 2691 [2024-11-18 10:21:51,880 INFO L226 Difference]: Without dead ends: 1721 [2024-11-18 10:21:51,882 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 10:21:51,885 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 155 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:51,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 336 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:21:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-11-18 10:21:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2024-11-18 10:21:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 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 10:21:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2024-11-18 10:21:51,918 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 163 [2024-11-18 10:21:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:51,920 INFO L471 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2024-11-18 10:21:51,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 10:21:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2024-11-18 10:21:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-18 10:21:51,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:51,923 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:21:51,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:21:51,923 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:51,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -933543605, now seen corresponding path program 1 times [2024-11-18 10:21:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:51,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145068516] [2024-11-18 10:21:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:52,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:52,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145068516] [2024-11-18 10:21:52,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145068516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:52,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:52,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:21:52,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383424452] [2024-11-18 10:21:52,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:52,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:52,088 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 10:21:52,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:52,856 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2024-11-18 10:21:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:52,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 178 [2024-11-18 10:21:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:52,866 INFO L225 Difference]: With dead ends: 4158 [2024-11-18 10:21:52,866 INFO L226 Difference]: Without dead ends: 2632 [2024-11-18 10:21:52,869 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 10:21:52,870 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:52,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 155 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:21:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-11-18 10:21:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2024-11-18 10:21:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 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 10:21:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2024-11-18 10:21:52,936 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 178 [2024-11-18 10:21:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:52,936 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2024-11-18 10:21:52,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 10:21:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2024-11-18 10:21:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-18 10:21:52,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:52,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:21:52,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:21:52,940 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:52,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:52,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1329847317, now seen corresponding path program 1 times [2024-11-18 10:21:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:52,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235809796] [2024-11-18 10:21:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:52,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-18 10:21:53,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:53,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235809796] [2024-11-18 10:21:53,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235809796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:53,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:53,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:21:53,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501252786] [2024-11-18 10:21:53,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:53,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:53,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:53,131 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 10:21:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:53,763 INFO L93 Difference]: Finished difference Result 5452 states and 6620 transitions. [2024-11-18 10:21:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:53,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 194 [2024-11-18 10:21:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:53,775 INFO L225 Difference]: With dead ends: 5452 [2024-11-18 10:21:53,775 INFO L226 Difference]: Without dead ends: 3006 [2024-11-18 10:21:53,779 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 10:21:53,780 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 75 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:53,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 154 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:21:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2024-11-18 10:21:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 3005. [2024-11-18 10:21:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 1.2113848202396804) internal successors, (3639), 3004 states have internal predecessors, (3639), 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 10:21:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3639 transitions. [2024-11-18 10:21:53,853 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 3639 transitions. Word has length 194 [2024-11-18 10:21:53,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:53,854 INFO L471 AbstractCegarLoop]: Abstraction has 3005 states and 3639 transitions. [2024-11-18 10:21:53,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 10:21:53,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 3639 transitions. [2024-11-18 10:21:53,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-18 10:21:53,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:53,858 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:53,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:21:53,858 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:53,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1440418757, now seen corresponding path program 1 times [2024-11-18 10:21:53,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:53,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898815949] [2024-11-18 10:21:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:53,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:54,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:54,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898815949] [2024-11-18 10:21:54,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898815949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:54,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:54,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 10:21:54,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611362931] [2024-11-18 10:21:54,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:54,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:21:54,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:54,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:21:54,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:21:54,482 INFO L87 Difference]: Start difference. First operand 3005 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 10:21:55,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:55,829 INFO L93 Difference]: Finished difference Result 8783 states and 10795 transitions. [2024-11-18 10:21:55,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:21:55,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232 [2024-11-18 10:21:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:55,851 INFO L225 Difference]: With dead ends: 8783 [2024-11-18 10:21:55,851 INFO L226 Difference]: Without dead ends: 5780 [2024-11-18 10:21:55,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 10:21:55,857 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 319 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:55,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 119 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:21:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2024-11-18 10:21:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5404. [2024-11-18 10:21:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5403 states have (on average 1.2121043864519712) internal successors, (6549), 5403 states have internal predecessors, (6549), 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 10:21:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6549 transitions. [2024-11-18 10:21:55,997 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 6549 transitions. Word has length 232 [2024-11-18 10:21:55,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:55,998 INFO L471 AbstractCegarLoop]: Abstraction has 5404 states and 6549 transitions. [2024-11-18 10:21:55,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 10:21:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 6549 transitions. [2024-11-18 10:21:56,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-18 10:21:56,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:56,002 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:56,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:21:56,002 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:56,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1400544816, now seen corresponding path program 1 times [2024-11-18 10:21:56,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:56,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661210791] [2024-11-18 10:21:56,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:56,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-18 10:21:56,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661210791] [2024-11-18 10:21:56,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661210791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:56,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:56,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:21:56,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053928750] [2024-11-18 10:21:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:56,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:56,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:56,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:56,248 INFO L87 Difference]: Start difference. First operand 5404 states and 6549 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 10:21:57,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:57,090 INFO L93 Difference]: Finished difference Result 11919 states and 14623 transitions. [2024-11-18 10:21:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:21:57,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 233 [2024-11-18 10:21:57,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:57,112 INFO L225 Difference]: With dead ends: 11919 [2024-11-18 10:21:57,112 INFO L226 Difference]: Without dead ends: 6885 [2024-11-18 10:21:57,118 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 10:21:57,119 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:57,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 390 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:21:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2024-11-18 10:21:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6692. [2024-11-18 10:21:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 1.1927962935286205) internal successors, (7981), 6691 states have internal predecessors, (7981), 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 10:21:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 7981 transitions. [2024-11-18 10:21:57,242 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 7981 transitions. Word has length 233 [2024-11-18 10:21:57,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:57,243 INFO L471 AbstractCegarLoop]: Abstraction has 6692 states and 7981 transitions. [2024-11-18 10:21:57,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 10:21:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 7981 transitions. [2024-11-18 10:21:57,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-18 10:21:57,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:57,248 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:57,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:21:57,248 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:57,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:57,249 INFO L85 PathProgramCache]: Analyzing trace with hash 826529202, now seen corresponding path program 1 times [2024-11-18 10:21:57,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:57,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888878269] [2024-11-18 10:21:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:57,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:57,641 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:21:57,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:57,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888878269] [2024-11-18 10:21:57,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888878269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:57,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:57,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:21:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375363877] [2024-11-18 10:21:57,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:57,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:21:57,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:21:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:21:57,645 INFO L87 Difference]: Start difference. First operand 6692 states and 7981 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 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 10:21:58,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:21:58,940 INFO L93 Difference]: Finished difference Result 14861 states and 17819 transitions. [2024-11-18 10:21:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:21:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 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 243 [2024-11-18 10:21:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:21:58,967 INFO L225 Difference]: With dead ends: 14861 [2024-11-18 10:21:58,968 INFO L226 Difference]: Without dead ends: 8539 [2024-11-18 10:21:58,976 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 10:21:58,977 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 253 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:21:58,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 141 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 10:21:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2024-11-18 10:21:59,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8534. [2024-11-18 10:21:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 1.1736786593226298) internal successors, (10015), 8533 states have internal predecessors, (10015), 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 10:21:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 10015 transitions. [2024-11-18 10:21:59,199 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 10015 transitions. Word has length 243 [2024-11-18 10:21:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:21:59,200 INFO L471 AbstractCegarLoop]: Abstraction has 8534 states and 10015 transitions. [2024-11-18 10:21:59,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 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 10:21:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 10015 transitions. [2024-11-18 10:21:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-18 10:21:59,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:21:59,207 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 10:21:59,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 10:21:59,207 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:21:59,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:21:59,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1535621630, now seen corresponding path program 1 times [2024-11-18 10:21:59,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:21:59,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138188354] [2024-11-18 10:21:59,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:21:59,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:21:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:21:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 10:21:59,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:21:59,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138188354] [2024-11-18 10:21:59,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138188354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:21:59,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:21:59,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:21:59,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871018712] [2024-11-18 10:21:59,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:21:59,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:21:59,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:21:59,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:21:59,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:21:59,491 INFO L87 Difference]: Start difference. First operand 8534 states and 10015 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 10:22:00,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:00,341 INFO L93 Difference]: Finished difference Result 18740 states and 22056 transitions. [2024-11-18 10:22:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:00,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 253 [2024-11-18 10:22:00,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:00,358 INFO L225 Difference]: With dead ends: 18740 [2024-11-18 10:22:00,358 INFO L226 Difference]: Without dead ends: 10576 [2024-11-18 10:22:00,365 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 10:22:00,366 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 151 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:00,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 190 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:22:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2024-11-18 10:22:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10190. [2024-11-18 10:22:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 10189 states have (on average 1.1690057905584454) internal successors, (11911), 10189 states have internal predecessors, (11911), 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 10:22:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 11911 transitions. [2024-11-18 10:22:00,490 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 11911 transitions. Word has length 253 [2024-11-18 10:22:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:00,491 INFO L471 AbstractCegarLoop]: Abstraction has 10190 states and 11911 transitions. [2024-11-18 10:22:00,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 10:22:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 11911 transitions. [2024-11-18 10:22:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-18 10:22:00,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:00,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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 10:22:00,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:22:00,498 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:00,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash 943642801, now seen corresponding path program 1 times [2024-11-18 10:22:00,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:00,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385346298] [2024-11-18 10:22:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:00,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-18 10:22:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385346298] [2024-11-18 10:22:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385346298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:00,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:00,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501583843] [2024-11-18 10:22:00,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:00,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:00,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:00,758 INFO L87 Difference]: Start difference. First operand 10190 states and 11911 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 10:22:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:01,446 INFO L93 Difference]: Finished difference Result 20567 states and 24033 transitions. [2024-11-18 10:22:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 281 [2024-11-18 10:22:01,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:01,462 INFO L225 Difference]: With dead ends: 20567 [2024-11-18 10:22:01,462 INFO L226 Difference]: Without dead ends: 10563 [2024-11-18 10:22:01,472 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 10:22:01,473 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 150 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:01,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 361 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:22:01,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2024-11-18 10:22:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10557. [2024-11-18 10:22:01,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.139920424403183) internal successors, (12033), 10556 states have internal predecessors, (12033), 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 10:22:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 12033 transitions. [2024-11-18 10:22:01,613 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 12033 transitions. Word has length 281 [2024-11-18 10:22:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:01,614 INFO L471 AbstractCegarLoop]: Abstraction has 10557 states and 12033 transitions. [2024-11-18 10:22:01,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 10:22:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 12033 transitions. [2024-11-18 10:22:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-18 10:22:01,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:01,623 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-18 10:22:01,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:22:01,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:01,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2146355781, now seen corresponding path program 1 times [2024-11-18 10:22:01,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:01,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675796390] [2024-11-18 10:22:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:01,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-18 10:22:01,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:01,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675796390] [2024-11-18 10:22:01,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675796390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:01,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:01,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:01,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495797117] [2024-11-18 10:22:01,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:01,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:01,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:01,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:01,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:01,964 INFO L87 Difference]: Start difference. First operand 10557 states and 12033 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 10:22:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:02,667 INFO L93 Difference]: Finished difference Result 23886 states and 27410 transitions. [2024-11-18 10:22:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 314 [2024-11-18 10:22:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:02,693 INFO L225 Difference]: With dead ends: 23886 [2024-11-18 10:22:02,693 INFO L226 Difference]: Without dead ends: 13699 [2024-11-18 10:22:02,705 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 10:22:02,706 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 142 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:02,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 135 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:22:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13699 states. [2024-11-18 10:22:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13699 to 13694. [2024-11-18 10:22:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13694 states, 13693 states have (on average 1.1337179580807712) internal successors, (15524), 13693 states have internal predecessors, (15524), 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 10:22:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 15524 transitions. [2024-11-18 10:22:02,969 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 15524 transitions. Word has length 314 [2024-11-18 10:22:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:02,970 INFO L471 AbstractCegarLoop]: Abstraction has 13694 states and 15524 transitions. [2024-11-18 10:22:02,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 10:22:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 15524 transitions. [2024-11-18 10:22:02,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-18 10:22:02,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:02,984 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 10:22:02,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:22:02,985 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:02,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:02,986 INFO L85 PathProgramCache]: Analyzing trace with hash 263747274, now seen corresponding path program 1 times [2024-11-18 10:22:02,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:02,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488839585] [2024-11-18 10:22:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-18 10:22:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:03,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488839585] [2024-11-18 10:22:03,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488839585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:03,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:03,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:03,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70123526] [2024-11-18 10:22:03,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:03,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:03,360 INFO L87 Difference]: Start difference. First operand 13694 states and 15524 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 10:22:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:04,159 INFO L93 Difference]: Finished difference Result 30517 states and 34553 transitions. [2024-11-18 10:22:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:04,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 322 [2024-11-18 10:22:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:04,186 INFO L225 Difference]: With dead ends: 30517 [2024-11-18 10:22:04,186 INFO L226 Difference]: Without dead ends: 17193 [2024-11-18 10:22:04,200 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 10:22:04,202 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 156 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:04,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 73 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:22:04,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17193 states. [2024-11-18 10:22:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17193 to 17190. [2024-11-18 10:22:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17190 states, 17189 states have (on average 1.1226365698993543) internal successors, (19297), 17189 states have internal predecessors, (19297), 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 10:22:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 19297 transitions. [2024-11-18 10:22:04,484 INFO L78 Accepts]: Start accepts. Automaton has 17190 states and 19297 transitions. Word has length 322 [2024-11-18 10:22:04,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:04,485 INFO L471 AbstractCegarLoop]: Abstraction has 17190 states and 19297 transitions. [2024-11-18 10:22:04,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 10:22:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 17190 states and 19297 transitions. [2024-11-18 10:22:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-18 10:22:04,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:04,496 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-18 10:22:04,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 10:22:04,496 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:04,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:04,497 INFO L85 PathProgramCache]: Analyzing trace with hash -379447870, now seen corresponding path program 1 times [2024-11-18 10:22:04,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:04,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175298895] [2024-11-18 10:22:04,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:04,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:22:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:05,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175298895] [2024-11-18 10:22:05,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175298895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:22:05,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161883428] [2024-11-18 10:22:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:05,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:05,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:22:05,339 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 10:22:05,343 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 10:22:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:05,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 10:22:05,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:22:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-18 10:22:05,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:22:05,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161883428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:05,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:22:05,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-18 10:22:05,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689376246] [2024-11-18 10:22:05,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:05,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:05,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:05,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:22:05,842 INFO L87 Difference]: Start difference. First operand 17190 states and 19297 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 10:22:06,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:06,506 INFO L93 Difference]: Finished difference Result 35504 states and 40039 transitions. [2024-11-18 10:22:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:06,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 324 [2024-11-18 10:22:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:06,533 INFO L225 Difference]: With dead ends: 35504 [2024-11-18 10:22:06,534 INFO L226 Difference]: Without dead ends: 18684 [2024-11-18 10:22:06,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:22:06,549 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 137 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:06,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 359 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 10:22:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2024-11-18 10:22:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18676. [2024-11-18 10:22:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 18675 states have (on average 1.121178045515395) internal successors, (20938), 18675 states have internal predecessors, (20938), 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 10:22:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 20938 transitions. [2024-11-18 10:22:06,780 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 20938 transitions. Word has length 324 [2024-11-18 10:22:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:06,781 INFO L471 AbstractCegarLoop]: Abstraction has 18676 states and 20938 transitions. [2024-11-18 10:22:06,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 10:22:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 20938 transitions. [2024-11-18 10:22:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-18 10:22:06,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:06,789 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-18 10:22:06,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 10:22:06,989 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,SelfDestructingSolverStorable13 [2024-11-18 10:22:06,990 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:06,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash -56733327, now seen corresponding path program 1 times [2024-11-18 10:22:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:06,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658612756] [2024-11-18 10:22:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-18 10:22:07,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:07,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658612756] [2024-11-18 10:22:07,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658612756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:07,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:07,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:07,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228834287] [2024-11-18 10:22:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:07,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:07,292 INFO L87 Difference]: Start difference. First operand 18676 states and 20938 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 10:22:07,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:07,955 INFO L93 Difference]: Finished difference Result 40109 states and 44936 transitions. [2024-11-18 10:22:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:07,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 326 [2024-11-18 10:22:07,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:07,979 INFO L225 Difference]: With dead ends: 40109 [2024-11-18 10:22:07,979 INFO L226 Difference]: Without dead ends: 21803 [2024-11-18 10:22:07,995 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 10:22:07,996 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 168 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:07,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 155 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:22:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2024-11-18 10:22:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 14439. [2024-11-18 10:22:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14439 states, 14438 states have (on average 1.13159717412384) internal successors, (16338), 14438 states have internal predecessors, (16338), 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 10:22:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14439 states to 14439 states and 16338 transitions. [2024-11-18 10:22:08,270 INFO L78 Accepts]: Start accepts. Automaton has 14439 states and 16338 transitions. Word has length 326 [2024-11-18 10:22:08,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:08,271 INFO L471 AbstractCegarLoop]: Abstraction has 14439 states and 16338 transitions. [2024-11-18 10:22:08,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 10:22:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14439 states and 16338 transitions. [2024-11-18 10:22:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-18 10:22:08,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:08,281 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:08,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 10:22:08,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:08,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash 234214298, now seen corresponding path program 1 times [2024-11-18 10:22:08,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:08,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546893793] [2024-11-18 10:22:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:08,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-18 10:22:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:08,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546893793] [2024-11-18 10:22:08,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546893793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:08,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:08,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:22:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436862287] [2024-11-18 10:22:08,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:08,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:08,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:08,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:08,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:08,495 INFO L87 Difference]: Start difference. First operand 14439 states and 16338 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 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 10:22:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:08,855 INFO L93 Difference]: Finished difference Result 28500 states and 32286 transitions. [2024-11-18 10:22:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 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 333 [2024-11-18 10:22:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:08,869 INFO L225 Difference]: With dead ends: 28500 [2024-11-18 10:22:08,869 INFO L226 Difference]: Without dead ends: 14431 [2024-11-18 10:22:08,879 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 10:22:08,879 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:08,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 40 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 10:22:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2024-11-18 10:22:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14428. [2024-11-18 10:22:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14428 states, 14427 states have (on average 1.1309350523324322) internal successors, (16316), 14427 states have internal predecessors, (16316), 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 10:22:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14428 states to 14428 states and 16316 transitions. [2024-11-18 10:22:09,118 INFO L78 Accepts]: Start accepts. Automaton has 14428 states and 16316 transitions. Word has length 333 [2024-11-18 10:22:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:09,119 INFO L471 AbstractCegarLoop]: Abstraction has 14428 states and 16316 transitions. [2024-11-18 10:22:09,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 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 10:22:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 14428 states and 16316 transitions. [2024-11-18 10:22:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-18 10:22:09,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:09,127 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:22:09,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 10:22:09,128 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:09,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1309922959, now seen corresponding path program 1 times [2024-11-18 10:22:09,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:09,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007538354] [2024-11-18 10:22:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-18 10:22:09,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:09,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007538354] [2024-11-18 10:22:09,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007538354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:09,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:09,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:09,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346118803] [2024-11-18 10:22:09,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:09,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:09,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:09,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:09,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:09,490 INFO L87 Difference]: Start difference. First operand 14428 states and 16316 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 10:22:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:10,113 INFO L93 Difference]: Finished difference Result 32350 states and 36463 transitions. [2024-11-18 10:22:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:10,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 357 [2024-11-18 10:22:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:10,135 INFO L225 Difference]: With dead ends: 32350 [2024-11-18 10:22:10,136 INFO L226 Difference]: Without dead ends: 16448 [2024-11-18 10:22:10,149 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 10:22:10,150 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:10,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 309 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:22:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16448 states. [2024-11-18 10:22:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 14052. [2024-11-18 10:22:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14052 states, 14051 states have (on average 1.095224539178706) internal successors, (15389), 14051 states have internal predecessors, (15389), 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 10:22:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 15389 transitions. [2024-11-18 10:22:10,301 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 15389 transitions. Word has length 357 [2024-11-18 10:22:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:10,301 INFO L471 AbstractCegarLoop]: Abstraction has 14052 states and 15389 transitions. [2024-11-18 10:22:10,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 10:22:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 15389 transitions. [2024-11-18 10:22:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-18 10:22:10,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:10,308 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:22:10,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 10:22:10,308 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:10,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2132777761, now seen corresponding path program 1 times [2024-11-18 10:22:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:10,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566325421] [2024-11-18 10:22:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:10,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-18 10:22:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566325421] [2024-11-18 10:22:11,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566325421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:11,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:11,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 10:22:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623638948] [2024-11-18 10:22:11,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:11,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:22:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:22:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:22:11,030 INFO L87 Difference]: Start difference. First operand 14052 states and 15389 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 10:22:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:12,007 INFO L93 Difference]: Finished difference Result 28841 states and 31559 transitions. [2024-11-18 10:22:12,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:22:12,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 358 [2024-11-18 10:22:12,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:12,027 INFO L225 Difference]: With dead ends: 28841 [2024-11-18 10:22:12,028 INFO L226 Difference]: Without dead ends: 15159 [2024-11-18 10:22:12,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 10:22:12,037 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 302 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:12,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 118 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:22:12,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2024-11-18 10:22:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 14236. [2024-11-18 10:22:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14236 states, 14235 states have (on average 1.0942746750965928) internal successors, (15577), 14235 states have internal predecessors, (15577), 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 10:22:12,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 15577 transitions. [2024-11-18 10:22:12,171 INFO L78 Accepts]: Start accepts. Automaton has 14236 states and 15577 transitions. Word has length 358 [2024-11-18 10:22:12,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:12,172 INFO L471 AbstractCegarLoop]: Abstraction has 14236 states and 15577 transitions. [2024-11-18 10:22:12,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 10:22:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 14236 states and 15577 transitions. [2024-11-18 10:22:12,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-18 10:22:12,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:12,177 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:22:12,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 10:22:12,177 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:12,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:12,178 INFO L85 PathProgramCache]: Analyzing trace with hash 827224776, now seen corresponding path program 1 times [2024-11-18 10:22:12,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:12,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720501598] [2024-11-18 10:22:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:12,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-18 10:22:12,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:12,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720501598] [2024-11-18 10:22:12,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720501598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:12,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:12,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:12,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446299672] [2024-11-18 10:22:12,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:12,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:22:12,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:12,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:22:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:22:12,553 INFO L87 Difference]: Start difference. First operand 14236 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 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 10:22:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:13,456 INFO L93 Difference]: Finished difference Result 36219 states and 39627 transitions. [2024-11-18 10:22:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:22:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 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 372 [2024-11-18 10:22:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:13,544 INFO L225 Difference]: With dead ends: 36219 [2024-11-18 10:22:13,544 INFO L226 Difference]: Without dead ends: 21801 [2024-11-18 10:22:13,550 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 10:22:13,551 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 229 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:13,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 71 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 10:22:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21801 states. [2024-11-18 10:22:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21801 to 20506. [2024-11-18 10:22:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20506 states, 20505 states have (on average 1.090904657400634) internal successors, (22369), 20505 states have internal predecessors, (22369), 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 10:22:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20506 states to 20506 states and 22369 transitions. [2024-11-18 10:22:13,808 INFO L78 Accepts]: Start accepts. Automaton has 20506 states and 22369 transitions. Word has length 372 [2024-11-18 10:22:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:13,808 INFO L471 AbstractCegarLoop]: Abstraction has 20506 states and 22369 transitions. [2024-11-18 10:22:13,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 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 10:22:13,809 INFO L276 IsEmpty]: Start isEmpty. Operand 20506 states and 22369 transitions. [2024-11-18 10:22:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-18 10:22:13,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:13,817 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:22:13,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 10:22:13,817 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:13,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1553293930, now seen corresponding path program 1 times [2024-11-18 10:22:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:13,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286528098] [2024-11-18 10:22:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:13,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-18 10:22:14,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:14,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286528098] [2024-11-18 10:22:14,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286528098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:22:14,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835722735] [2024-11-18 10:22:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:14,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:14,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:22:14,351 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 10:22:14,353 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 10:22:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:14,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-18 10:22:14,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:22:15,880 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:22:15,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 10:22:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:22:18,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835722735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 10:22:18,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 10:22:18,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2024-11-18 10:22:18,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21877993] [2024-11-18 10:22:18,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 10:22:18,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 10:22:18,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:18,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 10:22:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-18 10:22:18,990 INFO L87 Difference]: Start difference. First operand 20506 states and 22369 transitions. Second operand has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 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 10:22:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:25,190 INFO L93 Difference]: Finished difference Result 61425 states and 66654 transitions. [2024-11-18 10:22:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-18 10:22:25,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 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 389 [2024-11-18 10:22:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:25,234 INFO L225 Difference]: With dead ends: 61425 [2024-11-18 10:22:25,234 INFO L226 Difference]: Without dead ends: 40551 [2024-11-18 10:22:25,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=464, Invalid=1176, Unknown=0, NotChecked=0, Total=1640 [2024-11-18 10:22:25,246 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 4321 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7691 mSolverCounterSat, 1121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4321 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 8812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 7691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:25,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4321 Valid, 202 Invalid, 8812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1121 Valid, 7691 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-18 10:22:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40551 states. [2024-11-18 10:22:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40551 to 35614. [2024-11-18 10:22:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35614 states, 35613 states have (on average 1.0764046836829249) internal successors, (38334), 35613 states have internal predecessors, (38334), 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 10:22:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35614 states to 35614 states and 38334 transitions. [2024-11-18 10:22:25,660 INFO L78 Accepts]: Start accepts. Automaton has 35614 states and 38334 transitions. Word has length 389 [2024-11-18 10:22:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:25,661 INFO L471 AbstractCegarLoop]: Abstraction has 35614 states and 38334 transitions. [2024-11-18 10:22:25,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 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 10:22:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 35614 states and 38334 transitions. [2024-11-18 10:22:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-18 10:22:25,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:25,669 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:22:25,681 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 10:22:25,869 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,SelfDestructingSolverStorable19 [2024-11-18 10:22:25,870 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:25,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:25,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1546004851, now seen corresponding path program 1 times [2024-11-18 10:22:25,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:25,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768671241] [2024-11-18 10:22:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:25,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-18 10:22:26,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:26,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768671241] [2024-11-18 10:22:26,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768671241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:26,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:26,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712562675] [2024-11-18 10:22:26,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:26,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:22:26,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:26,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:22:26,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:22:26,466 INFO L87 Difference]: Start difference. First operand 35614 states and 38334 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 10:22:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:27,717 INFO L93 Difference]: Finished difference Result 72893 states and 78533 transitions. [2024-11-18 10:22:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:22:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 394 [2024-11-18 10:22:27,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:27,761 INFO L225 Difference]: With dead ends: 72893 [2024-11-18 10:22:27,762 INFO L226 Difference]: Without dead ends: 37649 [2024-11-18 10:22:27,788 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 10:22:27,789 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 200 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:27,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 105 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 10:22:27,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37649 states. [2024-11-18 10:22:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37649 to 33762. [2024-11-18 10:22:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33762 states, 33761 states have (on average 1.0759752377003051) internal successors, (36326), 33761 states have internal predecessors, (36326), 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 10:22:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33762 states to 33762 states and 36326 transitions. [2024-11-18 10:22:28,338 INFO L78 Accepts]: Start accepts. Automaton has 33762 states and 36326 transitions. Word has length 394 [2024-11-18 10:22:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:28,339 INFO L471 AbstractCegarLoop]: Abstraction has 33762 states and 36326 transitions. [2024-11-18 10:22:28,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 10:22:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 33762 states and 36326 transitions. [2024-11-18 10:22:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-18 10:22:28,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:28,351 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:22:28,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 10:22:28,352 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:28,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1148113260, now seen corresponding path program 1 times [2024-11-18 10:22:28,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492080894] [2024-11-18 10:22:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-18 10:22:28,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:28,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492080894] [2024-11-18 10:22:28,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492080894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:28,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:28,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689581426] [2024-11-18 10:22:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:28,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:28,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:28,923 INFO L87 Difference]: Start difference. First operand 33762 states and 36326 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 10:22:29,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:29,593 INFO L93 Difference]: Finished difference Result 69174 states and 74442 transitions. [2024-11-18 10:22:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:29,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 434 [2024-11-18 10:22:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:29,634 INFO L225 Difference]: With dead ends: 69174 [2024-11-18 10:22:29,634 INFO L226 Difference]: Without dead ends: 35782 [2024-11-18 10:22:29,661 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 10:22:29,662 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 156 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:29,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 316 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:22:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35782 states. [2024-11-18 10:22:29,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35782 to 29520. [2024-11-18 10:22:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29520 states, 29519 states have (on average 1.0707679799451202) internal successors, (31608), 29519 states have internal predecessors, (31608), 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 10:22:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29520 states to 29520 states and 31608 transitions. [2024-11-18 10:22:30,031 INFO L78 Accepts]: Start accepts. Automaton has 29520 states and 31608 transitions. Word has length 434 [2024-11-18 10:22:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:30,031 INFO L471 AbstractCegarLoop]: Abstraction has 29520 states and 31608 transitions. [2024-11-18 10:22:30,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 10:22:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 29520 states and 31608 transitions. [2024-11-18 10:22:30,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-18 10:22:30,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:30,041 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:22:30,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 10:22:30,042 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:30,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:30,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1848032332, now seen corresponding path program 1 times [2024-11-18 10:22:30,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:30,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971516048] [2024-11-18 10:22:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:30,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-18 10:22:30,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:30,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971516048] [2024-11-18 10:22:30,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971516048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:30,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:30,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:30,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616516442] [2024-11-18 10:22:30,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:30,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:30,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:30,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:30,464 INFO L87 Difference]: Start difference. First operand 29520 states and 31608 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 10:22:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:31,107 INFO L93 Difference]: Finished difference Result 57758 states and 61913 transitions. [2024-11-18 10:22:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:31,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 468 [2024-11-18 10:22:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:31,148 INFO L225 Difference]: With dead ends: 57758 [2024-11-18 10:22:31,148 INFO L226 Difference]: Without dead ends: 30816 [2024-11-18 10:22:31,270 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 10:22:31,271 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 134 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:31,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 111 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 10:22:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30816 states. [2024-11-18 10:22:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30816 to 29152. [2024-11-18 10:22:31,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29152 states, 29151 states have (on average 1.0702205756234777) internal successors, (31198), 29151 states have internal predecessors, (31198), 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 10:22:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31198 transitions. [2024-11-18 10:22:31,564 INFO L78 Accepts]: Start accepts. Automaton has 29152 states and 31198 transitions. Word has length 468 [2024-11-18 10:22:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:31,564 INFO L471 AbstractCegarLoop]: Abstraction has 29152 states and 31198 transitions. [2024-11-18 10:22:31,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 10:22:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 29152 states and 31198 transitions. [2024-11-18 10:22:31,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-18 10:22:31,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:31,573 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:31,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 10:22:31,573 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:31,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:31,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1117136727, now seen corresponding path program 1 times [2024-11-18 10:22:31,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:31,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452073416] [2024-11-18 10:22:31,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:31,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-18 10:22:32,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:32,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452073416] [2024-11-18 10:22:32,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452073416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:22:32,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084865471] [2024-11-18 10:22:32,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:32,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:32,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:22:32,189 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 10:22:32,190 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 10:22:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:32,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 10:22:32,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:22:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-18 10:22:32,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:22:32,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084865471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:32,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:22:32,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-18 10:22:32,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626232060] [2024-11-18 10:22:32,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:32,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:32,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:32,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:22:32,521 INFO L87 Difference]: Start difference. First operand 29152 states and 31198 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 10:22:33,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:33,114 INFO L93 Difference]: Finished difference Result 55910 states and 59881 transitions. [2024-11-18 10:22:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:33,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 472 [2024-11-18 10:22:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:33,144 INFO L225 Difference]: With dead ends: 55910 [2024-11-18 10:22:33,144 INFO L226 Difference]: Without dead ends: 28782 [2024-11-18 10:22:33,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 10:22:33,162 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 120 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:33,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 163 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:22:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28782 states. [2024-11-18 10:22:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 28046. [2024-11-18 10:22:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28046 states, 28045 states have (on average 1.0686040292387236) internal successors, (29969), 28045 states have internal predecessors, (29969), 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 10:22:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28046 states to 28046 states and 29969 transitions. [2024-11-18 10:22:33,560 INFO L78 Accepts]: Start accepts. Automaton has 28046 states and 29969 transitions. Word has length 472 [2024-11-18 10:22:33,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:33,561 INFO L471 AbstractCegarLoop]: Abstraction has 28046 states and 29969 transitions. [2024-11-18 10:22:33,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 10:22:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 28046 states and 29969 transitions. [2024-11-18 10:22:33,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-18 10:22:33,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:33,571 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:33,584 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 10:22:33,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:33,772 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:33,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2131901513, now seen corresponding path program 1 times [2024-11-18 10:22:33,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:33,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197929162] [2024-11-18 10:22:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:33,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-18 10:22:34,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:34,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197929162] [2024-11-18 10:22:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197929162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:34,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 10:22:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913184236] [2024-11-18 10:22:34,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:34,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 10:22:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 10:22:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 10:22:34,870 INFO L87 Difference]: Start difference. First operand 28046 states and 29969 transitions. Second operand has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 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 10:22:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:36,438 INFO L93 Difference]: Finished difference Result 58856 states and 62884 transitions. [2024-11-18 10:22:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 10:22:36,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 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 523 [2024-11-18 10:22:36,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:36,476 INFO L225 Difference]: With dead ends: 58856 [2024-11-18 10:22:36,476 INFO L226 Difference]: Without dead ends: 33204 [2024-11-18 10:22:36,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:22:36,497 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 214 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:36,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 227 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 10:22:36,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33204 states. [2024-11-18 10:22:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33204 to 29152. [2024-11-18 10:22:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29152 states, 29151 states have (on average 1.069054234846146) internal successors, (31164), 29151 states have internal predecessors, (31164), 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 10:22:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31164 transitions. [2024-11-18 10:22:37,015 INFO L78 Accepts]: Start accepts. Automaton has 29152 states and 31164 transitions. Word has length 523 [2024-11-18 10:22:37,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:37,016 INFO L471 AbstractCegarLoop]: Abstraction has 29152 states and 31164 transitions. [2024-11-18 10:22:37,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 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 10:22:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 29152 states and 31164 transitions. [2024-11-18 10:22:37,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-18 10:22:37,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:37,034 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:37,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 10:22:37,035 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:37,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash 435204898, now seen corresponding path program 1 times [2024-11-18 10:22:37,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:37,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348896120] [2024-11-18 10:22:37,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:38,316 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-18 10:22:38,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348896120] [2024-11-18 10:22:38,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348896120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:22:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634121093] [2024-11-18 10:22:38,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:38,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:38,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:22:38,319 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 10:22:38,321 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 10:22:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:38,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 10:22:38,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:22:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-18 10:22:39,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 10:22:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-18 10:22:42,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634121093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 10:22:42,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 10:22:42,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-18 10:22:42,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308264619] [2024-11-18 10:22:42,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 10:22:42,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 10:22:42,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 10:22:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-18 10:22:42,058 INFO L87 Difference]: Start difference. First operand 29152 states and 31164 transitions. Second operand has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 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 10:22:45,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:45,340 INFO L93 Difference]: Finished difference Result 62169 states and 66307 transitions. [2024-11-18 10:22:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 10:22:45,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 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 533 [2024-11-18 10:22:45,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:45,476 INFO L225 Difference]: With dead ends: 62169 [2024-11-18 10:22:45,476 INFO L226 Difference]: Without dead ends: 28785 [2024-11-18 10:22:45,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2024-11-18 10:22:45,484 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1368 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 3917 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 4433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 3917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:45,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 147 Invalid, 4433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 3917 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 10:22:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28785 states. [2024-11-18 10:22:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28785 to 14401. [2024-11-18 10:22:45,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14400 states have (on average 1.0522916666666666) internal successors, (15153), 14400 states have internal predecessors, (15153), 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 10:22:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 15153 transitions. [2024-11-18 10:22:45,679 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 15153 transitions. Word has length 533 [2024-11-18 10:22:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:45,679 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 15153 transitions. [2024-11-18 10:22:45,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 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 10:22:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 15153 transitions. [2024-11-18 10:22:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2024-11-18 10:22:45,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:45,685 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 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, 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 10:22:45,701 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 10:22:45,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-18 10:22:45,886 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:45,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1729367067, now seen corresponding path program 1 times [2024-11-18 10:22:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:45,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152541168] [2024-11-18 10:22:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:45,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:46,697 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-18 10:22:46,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:46,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152541168] [2024-11-18 10:22:46,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152541168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:22:46,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697491046] [2024-11-18 10:22:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:46,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:22:46,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:22:46,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 10:22:46,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 10:22:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:46,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 10:22:46,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:22:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-18 10:22:47,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 10:22:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 527 proven. 69 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-18 10:22:49,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697491046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 10:22:49,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 10:22:49,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-18 10:22:49,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137455110] [2024-11-18 10:22:49,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 10:22:49,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 10:22:49,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 10:22:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-18 10:22:49,958 INFO L87 Difference]: Start difference. First operand 14401 states and 15153 transitions. Second operand has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 10:22:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:52,247 INFO L93 Difference]: Finished difference Result 36371 states and 38285 transitions. [2024-11-18 10:22:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 10:22:52,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 536 [2024-11-18 10:22:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:52,271 INFO L225 Difference]: With dead ends: 36371 [2024-11-18 10:22:52,271 INFO L226 Difference]: Without dead ends: 20500 [2024-11-18 10:22:52,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1066 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-18 10:22:52,284 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 876 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:52,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 162 Invalid, 3580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 10:22:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20500 states. [2024-11-18 10:22:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20500 to 18461. [2024-11-18 10:22:52,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18461 states, 18460 states have (on average 1.0465872156013) internal successors, (19320), 18460 states have internal predecessors, (19320), 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 10:22:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18461 states to 18461 states and 19320 transitions. [2024-11-18 10:22:52,480 INFO L78 Accepts]: Start accepts. Automaton has 18461 states and 19320 transitions. Word has length 536 [2024-11-18 10:22:52,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:52,480 INFO L471 AbstractCegarLoop]: Abstraction has 18461 states and 19320 transitions. [2024-11-18 10:22:52,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 10:22:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 18461 states and 19320 transitions. [2024-11-18 10:22:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-18 10:22:52,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:52,492 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 10:22:52,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 10:22:52,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-18 10:22:52,693 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:52,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash -90709383, now seen corresponding path program 1 times [2024-11-18 10:22:52,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:52,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901433790] [2024-11-18 10:22:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:52,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-18 10:22:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:53,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901433790] [2024-11-18 10:22:53,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901433790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:53,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:53,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:53,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744119778] [2024-11-18 10:22:53,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:53,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:53,076 INFO L87 Difference]: Start difference. First operand 18461 states and 19320 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 10:22:53,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:53,567 INFO L93 Difference]: Finished difference Result 33964 states and 35530 transitions. [2024-11-18 10:22:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:53,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 670 [2024-11-18 10:22:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:53,582 INFO L225 Difference]: With dead ends: 33964 [2024-11-18 10:22:53,582 INFO L226 Difference]: Without dead ends: 15689 [2024-11-18 10:22:53,593 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 10:22:53,593 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 91 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:53,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 259 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:22:53,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15689 states. [2024-11-18 10:22:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15689 to 13107. [2024-11-18 10:22:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13107 states, 13106 states have (on average 1.0424996184953457) internal successors, (13663), 13106 states have internal predecessors, (13663), 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 10:22:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13107 states to 13107 states and 13663 transitions. [2024-11-18 10:22:53,722 INFO L78 Accepts]: Start accepts. Automaton has 13107 states and 13663 transitions. Word has length 670 [2024-11-18 10:22:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:53,723 INFO L471 AbstractCegarLoop]: Abstraction has 13107 states and 13663 transitions. [2024-11-18 10:22:53,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 10:22:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 13107 states and 13663 transitions. [2024-11-18 10:22:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-18 10:22:53,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:53,729 INFO L215 NwaCegarLoop]: trace histogram [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, 6, 6, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:22:53,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 10:22:53,729 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:53,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1179876378, now seen corresponding path program 1 times [2024-11-18 10:22:53,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:53,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824894077] [2024-11-18 10:22:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 1067 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-18 10:22:54,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:54,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824894077] [2024-11-18 10:22:54,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824894077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:54,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:54,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:22:54,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653718114] [2024-11-18 10:22:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:54,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:22:54,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:54,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:22:54,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:22:54,026 INFO L87 Difference]: Start difference. First operand 13107 states and 13663 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 10:22:54,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:54,478 INFO L93 Difference]: Finished difference Result 25847 states and 26954 transitions. [2024-11-18 10:22:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:22:54,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 671 [2024-11-18 10:22:54,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:54,490 INFO L225 Difference]: With dead ends: 25847 [2024-11-18 10:22:54,490 INFO L226 Difference]: Without dead ends: 12742 [2024-11-18 10:22:54,498 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 10:22:54,498 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 110 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:54,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 309 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 10:22:54,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12742 states. [2024-11-18 10:22:54,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12742 to 10899. [2024-11-18 10:22:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10899 states, 10898 states have (on average 1.0387227014131033) internal successors, (11320), 10898 states have internal predecessors, (11320), 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 10:22:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10899 states to 10899 states and 11320 transitions. [2024-11-18 10:22:54,598 INFO L78 Accepts]: Start accepts. Automaton has 10899 states and 11320 transitions. Word has length 671 [2024-11-18 10:22:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:54,599 INFO L471 AbstractCegarLoop]: Abstraction has 10899 states and 11320 transitions. [2024-11-18 10:22:54,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 10:22:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10899 states and 11320 transitions. [2024-11-18 10:22:54,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-18 10:22:54,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:54,604 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:22:54,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 10:22:54,605 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:54,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:54,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1608734886, now seen corresponding path program 1 times [2024-11-18 10:22:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:54,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578808796] [2024-11-18 10:22:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:54,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:22:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-18 10:22:55,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:22:55,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578808796] [2024-11-18 10:22:55,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578808796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:22:55,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:22:55,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 10:22:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016687324] [2024-11-18 10:22:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:22:55,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:22:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:22:55,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:22:55,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:22:55,215 INFO L87 Difference]: Start difference. First operand 10899 states and 11320 transitions. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 10:22:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:22:55,950 INFO L93 Difference]: Finished difference Result 23829 states and 24745 transitions. [2024-11-18 10:22:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:22:55,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 677 [2024-11-18 10:22:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:22:55,962 INFO L225 Difference]: With dead ends: 23829 [2024-11-18 10:22:55,962 INFO L226 Difference]: Without dead ends: 13300 [2024-11-18 10:22:55,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 10:22:55,969 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 219 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:22:55,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 66 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 10:22:55,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13300 states. [2024-11-18 10:22:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13300 to 9985. [2024-11-18 10:22:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9985 states, 9984 states have (on average 1.0360576923076923) internal successors, (10344), 9984 states have internal predecessors, (10344), 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 10:22:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9985 states to 9985 states and 10344 transitions. [2024-11-18 10:22:56,066 INFO L78 Accepts]: Start accepts. Automaton has 9985 states and 10344 transitions. Word has length 677 [2024-11-18 10:22:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:22:56,067 INFO L471 AbstractCegarLoop]: Abstraction has 9985 states and 10344 transitions. [2024-11-18 10:22:56,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 10:22:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 9985 states and 10344 transitions. [2024-11-18 10:22:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2024-11-18 10:22:56,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:22:56,073 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:22:56,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 10:22:56,073 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:22:56,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:22:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1890581185, now seen corresponding path program 1 times [2024-11-18 10:22:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:22:56,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3745831] [2024-11-18 10:22:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:22:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:22:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat