./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/Problem17_label52.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 673e4a4bf325c025d58fd334f1e832326bf41b68123ee166ef18eb1ee4097cb0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:20:28,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:20:28,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:20:28,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:20:28,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:20:28,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:20:28,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:20:28,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:20:28,574 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:20:28,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:20:28,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:20:28,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:20:28,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:20:28,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:20:28,580 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:20:28,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:20:28,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:20:28,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:20:28,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:20:28,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:20:28,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:20:28,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:20:28,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:20:28,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:20:28,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:20:28,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:20:28,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:20:28,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:20:28,585 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:20:28,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:20:28,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:20:28,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:20:28,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:20:28,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:20:28,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:20:28,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:20:28,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:20:28,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:20:28,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:20:28,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:20:28,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:20:28,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:20:28,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673e4a4bf325c025d58fd334f1e832326bf41b68123ee166ef18eb1ee4097cb0 [2024-11-16 04:20:28,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:20:28,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:20:28,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:20:28,878 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:20:28,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:20:28,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label52.c [2024-11-16 04:20:30,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:20:30,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:20:30,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label52.c [2024-11-16 04:20:30,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb3feeb5/715f38c283a24d18b008c776b1392528/FLAGccce0c058 [2024-11-16 04:20:30,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb3feeb5/715f38c283a24d18b008c776b1392528 [2024-11-16 04:20:30,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:20:30,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:20:30,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:20:30,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:20:30,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:20:30,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:20:30" (1/1) ... [2024-11-16 04:20:30,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee4d4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:30, skipping insertion in model container [2024-11-16 04:20:30,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:20:30" (1/1) ... [2024-11-16 04:20:31,014 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:20:31,232 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/Problem17_label52.c[1111,1124] [2024-11-16 04:20:31,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:20:31,881 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:20:31,897 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/Problem17_label52.c[1111,1124] [2024-11-16 04:20:32,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:20:32,180 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:20:32,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32 WrapperNode [2024-11-16 04:20:32,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:20:32,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:20:32,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:20:32,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:20:32,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,567 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-16 04:20:32,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:20:32,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:20:32,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:20:32,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:20:32,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,755 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]. [2024-11-16 04:20:32,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:32,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:20:32,997 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:20:32,998 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:20:32,998 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:20:32,999 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (1/1) ... [2024-11-16 04:20:33,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:20:33,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:20:33,033 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) [2024-11-16 04:20:33,041 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 [2024-11-16 04:20:33,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:20:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:20:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:20:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:20:33,140 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:20:33,142 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:20:36,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2024-11-16 04:20:36,565 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-16 04:20:36,565 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:20:36,590 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:20:36,591 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:20:36,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:20:36 BoogieIcfgContainer [2024-11-16 04:20:36,594 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:20:36,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:20:36,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:20:36,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:20:36,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:20:30" (1/3) ... [2024-11-16 04:20:36,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ac4c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:20:36, skipping insertion in model container [2024-11-16 04:20:36,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:20:32" (2/3) ... [2024-11-16 04:20:36,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ac4c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:20:36, skipping insertion in model container [2024-11-16 04:20:36,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:20:36" (3/3) ... [2024-11-16 04:20:36,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label52.c [2024-11-16 04:20:36,618 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:20:36,618 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:20:36,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:20:36,704 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;@8989bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:20:36,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:20:36,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 591 states have (on average 1.8020304568527918) internal successors, (1065), 592 states have internal predecessors, (1065), 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) [2024-11-16 04:20:36,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-16 04:20:36,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:36,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:36,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:36,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:36,725 INFO L85 PathProgramCache]: Analyzing trace with hash 237121528, now seen corresponding path program 1 times [2024-11-16 04:20:36,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:36,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142390544] [2024-11-16 04:20:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:36,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:36,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:36,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:36,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142390544] [2024-11-16 04:20:36,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142390544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:36,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:36,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:36,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614070551] [2024-11-16 04:20:36,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:36,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:36,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:36,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:36,991 INFO L87 Difference]: Start difference. First operand has 593 states, 591 states have (on average 1.8020304568527918) internal successors, (1065), 592 states have internal predecessors, (1065), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-16 04:20:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:39,331 INFO L93 Difference]: Finished difference Result 1650 states and 3035 transitions. [2024-11-16 04:20:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-16 04:20:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:39,350 INFO L225 Difference]: With dead ends: 1650 [2024-11-16 04:20:39,351 INFO L226 Difference]: Without dead ends: 980 [2024-11-16 04:20:39,355 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 [2024-11-16 04:20:39,358 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 482 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:39,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 507 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 04:20:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-16 04:20:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2024-11-16 04:20:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 973 states have (on average 1.551901336073998) internal successors, (1510), 973 states have internal predecessors, (1510), 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) [2024-11-16 04:20:39,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1510 transitions. [2024-11-16 04:20:39,436 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1510 transitions. Word has length 8 [2024-11-16 04:20:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:39,437 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1510 transitions. [2024-11-16 04:20:39,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-16 04:20:39,437 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1510 transitions. [2024-11-16 04:20:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 04:20:39,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:39,440 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:20:39,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:20:39,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:39,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1849377849, now seen corresponding path program 1 times [2024-11-16 04:20:39,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:39,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603639553] [2024-11-16 04:20:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:39,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:39,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:39,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603639553] [2024-11-16 04:20:39,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603639553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:39,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:39,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:39,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327541725] [2024-11-16 04:20:39,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:39,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:39,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:39,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:39,745 INFO L87 Difference]: Start difference. First operand 974 states and 1510 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2024-11-16 04:20:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:41,756 INFO L93 Difference]: Finished difference Result 2824 states and 4391 transitions. [2024-11-16 04:20:41,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:41,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 76 [2024-11-16 04:20:41,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:41,763 INFO L225 Difference]: With dead ends: 2824 [2024-11-16 04:20:41,764 INFO L226 Difference]: Without dead ends: 1852 [2024-11-16 04:20:41,765 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 [2024-11-16 04:20:41,766 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 408 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:41,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 586 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 04:20:41,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-16 04:20:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1846. [2024-11-16 04:20:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 1.3495934959349594) internal successors, (2490), 1845 states have internal predecessors, (2490), 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) [2024-11-16 04:20:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2490 transitions. [2024-11-16 04:20:41,813 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2490 transitions. Word has length 76 [2024-11-16 04:20:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:41,814 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 2490 transitions. [2024-11-16 04:20:41,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2024-11-16 04:20:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2490 transitions. [2024-11-16 04:20:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 04:20:41,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:41,818 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 04:20:41,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:20:41,819 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:41,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:41,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1791382963, now seen corresponding path program 1 times [2024-11-16 04:20:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:41,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892659931] [2024-11-16 04:20:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:41,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:42,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892659931] [2024-11-16 04:20:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892659931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:42,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:42,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444279949] [2024-11-16 04:20:42,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:42,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:42,027 INFO L87 Difference]: Start difference. First operand 1846 states and 2490 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-16 04:20:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:43,872 INFO L93 Difference]: Finished difference Result 4564 states and 6297 transitions. [2024-11-16 04:20:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2024-11-16 04:20:43,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:43,882 INFO L225 Difference]: With dead ends: 4564 [2024-11-16 04:20:43,882 INFO L226 Difference]: Without dead ends: 2720 [2024-11-16 04:20:43,885 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 [2024-11-16 04:20:43,886 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 501 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:43,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 891 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:20:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2024-11-16 04:20:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2718. [2024-11-16 04:20:43,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2717 states have (on average 1.2999631947000367) internal successors, (3532), 2717 states have internal predecessors, (3532), 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) [2024-11-16 04:20:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3532 transitions. [2024-11-16 04:20:43,931 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3532 transitions. Word has length 79 [2024-11-16 04:20:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:43,932 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 3532 transitions. [2024-11-16 04:20:43,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2024-11-16 04:20:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3532 transitions. [2024-11-16 04:20:43,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 04:20:43,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:43,940 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:43,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:20:43,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:43,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1302848483, now seen corresponding path program 1 times [2024-11-16 04:20:43,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:43,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796596974] [2024-11-16 04:20:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 04:20:44,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:44,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796596974] [2024-11-16 04:20:44,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796596974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:44,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:44,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:20:44,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289909787] [2024-11-16 04:20:44,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:44,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:44,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:44,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:44,280 INFO L87 Difference]: Start difference. First operand 2718 states and 3532 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2024-11-16 04:20:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:45,897 INFO L93 Difference]: Finished difference Result 8004 states and 10384 transitions. [2024-11-16 04:20:45,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:45,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 149 [2024-11-16 04:20:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:45,914 INFO L225 Difference]: With dead ends: 8004 [2024-11-16 04:20:45,914 INFO L226 Difference]: Without dead ends: 4432 [2024-11-16 04:20:45,922 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 [2024-11-16 04:20:45,925 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 387 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:45,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 593 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 04:20:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2024-11-16 04:20:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3575. [2024-11-16 04:20:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3574 states have (on average 1.1773922775601566) internal successors, (4208), 3574 states have internal predecessors, (4208), 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) [2024-11-16 04:20:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 4208 transitions. [2024-11-16 04:20:45,992 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 4208 transitions. Word has length 149 [2024-11-16 04:20:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:45,993 INFO L471 AbstractCegarLoop]: Abstraction has 3575 states and 4208 transitions. [2024-11-16 04:20:45,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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) [2024-11-16 04:20:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 4208 transitions. [2024-11-16 04:20:45,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 04:20:45,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:45,995 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:45,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:20:45,996 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:45,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:45,996 INFO L85 PathProgramCache]: Analyzing trace with hash -700683545, now seen corresponding path program 1 times [2024-11-16 04:20:45,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:45,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970615477] [2024-11-16 04:20:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:45,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970615477] [2024-11-16 04:20:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970615477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:46,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:46,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:46,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253220108] [2024-11-16 04:20:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:46,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:46,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:46,204 INFO L87 Difference]: Start difference. First operand 3575 states and 4208 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-11-16 04:20:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:47,727 INFO L93 Difference]: Finished difference Result 9286 states and 11101 transitions. [2024-11-16 04:20:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:47,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2024-11-16 04:20:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:47,747 INFO L225 Difference]: With dead ends: 9286 [2024-11-16 04:20:47,747 INFO L226 Difference]: Without dead ends: 5713 [2024-11-16 04:20:47,753 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 [2024-11-16 04:20:47,755 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 496 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:47,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 789 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:20:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5713 states. [2024-11-16 04:20:47,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5713 to 5713. [2024-11-16 04:20:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5713 states, 5712 states have (on average 1.1593137254901962) internal successors, (6622), 5712 states have internal predecessors, (6622), 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) [2024-11-16 04:20:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5713 states to 5713 states and 6622 transitions. [2024-11-16 04:20:47,866 INFO L78 Accepts]: Start accepts. Automaton has 5713 states and 6622 transitions. Word has length 162 [2024-11-16 04:20:47,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:47,867 INFO L471 AbstractCegarLoop]: Abstraction has 5713 states and 6622 transitions. [2024-11-16 04:20:47,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-11-16 04:20:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5713 states and 6622 transitions. [2024-11-16 04:20:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 04:20:47,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:47,873 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:47,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:20:47,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:47,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:47,874 INFO L85 PathProgramCache]: Analyzing trace with hash 23813250, now seen corresponding path program 1 times [2024-11-16 04:20:47,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:47,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137136235] [2024-11-16 04:20:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:47,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 9 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137136235] [2024-11-16 04:20:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137136235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:20:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671901585] [2024-11-16 04:20:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:48,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:20:48,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:20:48,255 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) [2024-11-16 04:20:48,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:20:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:48,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:20:48,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:20:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 9 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:48,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:20:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:48,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671901585] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:20:48,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:20:48,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-16 04:20:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673460865] [2024-11-16 04:20:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:48,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:20:48,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:20:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:20:48,941 INFO L87 Difference]: Start difference. First operand 5713 states and 6622 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-16 04:20:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:51,596 INFO L93 Difference]: Finished difference Result 17003 states and 19995 transitions. [2024-11-16 04:20:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:20:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 164 [2024-11-16 04:20:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:51,629 INFO L225 Difference]: With dead ends: 17003 [2024-11-16 04:20:51,629 INFO L226 Difference]: Without dead ends: 10410 [2024-11-16 04:20:51,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:20:51,639 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 883 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:51,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 172 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 04:20:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10410 states. [2024-11-16 04:20:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10410 to 10404. [2024-11-16 04:20:51,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10404 states, 10403 states have (on average 1.1549553013553782) internal successors, (12015), 10403 states have internal predecessors, (12015), 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) [2024-11-16 04:20:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10404 states to 10404 states and 12015 transitions. [2024-11-16 04:20:51,791 INFO L78 Accepts]: Start accepts. Automaton has 10404 states and 12015 transitions. Word has length 164 [2024-11-16 04:20:51,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:51,792 INFO L471 AbstractCegarLoop]: Abstraction has 10404 states and 12015 transitions. [2024-11-16 04:20:51,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-16 04:20:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10404 states and 12015 transitions. [2024-11-16 04:20:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-16 04:20:51,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:51,795 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:51,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:20:51,995 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,SelfDestructingSolverStorable5 [2024-11-16 04:20:51,996 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:51,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2120553993, now seen corresponding path program 1 times [2024-11-16 04:20:51,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:51,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575201588] [2024-11-16 04:20:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:51,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 14 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:20:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575201588] [2024-11-16 04:20:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575201588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:20:52,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817798268] [2024-11-16 04:20:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:20:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:20:52,438 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) [2024-11-16 04:20:52,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:20:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:52,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:20:52,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:20:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 152 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 04:20:52,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:20:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 04:20:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817798268] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:20:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:20:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 6 [2024-11-16 04:20:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468923027] [2024-11-16 04:20:53,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:53,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:20:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:53,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:20:53,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:20:53,100 INFO L87 Difference]: Start difference. First operand 10404 states and 12015 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-16 04:20:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:55,442 INFO L93 Difference]: Finished difference Result 28935 states and 33458 transitions. [2024-11-16 04:20:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:20:55,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 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 239 [2024-11-16 04:20:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:55,484 INFO L225 Difference]: With dead ends: 28935 [2024-11-16 04:20:55,485 INFO L226 Difference]: Without dead ends: 18533 [2024-11-16 04:20:55,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:20:55,500 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 883 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 2826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:55,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 178 Invalid, 2826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 04:20:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18533 states. [2024-11-16 04:20:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18533 to 18526. [2024-11-16 04:20:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18526 states, 18525 states have (on average 1.1425641025641025) internal successors, (21166), 18525 states have internal predecessors, (21166), 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) [2024-11-16 04:20:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18526 states to 18526 states and 21166 transitions. [2024-11-16 04:20:55,768 INFO L78 Accepts]: Start accepts. Automaton has 18526 states and 21166 transitions. Word has length 239 [2024-11-16 04:20:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:55,769 INFO L471 AbstractCegarLoop]: Abstraction has 18526 states and 21166 transitions. [2024-11-16 04:20:55,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-11-16 04:20:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 18526 states and 21166 transitions. [2024-11-16 04:20:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-16 04:20:55,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:55,774 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-16 04:20:55,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:20:55,978 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,SelfDestructingSolverStorable6 [2024-11-16 04:20:55,979 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:55,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 860798848, now seen corresponding path program 1 times [2024-11-16 04:20:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:55,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167185434] [2024-11-16 04:20:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:55,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-16 04:20:56,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:56,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167185434] [2024-11-16 04:20:56,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167185434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:56,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:56,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:56,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328441856] [2024-11-16 04:20:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:56,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:56,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:56,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:56,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:56,534 INFO L87 Difference]: Start difference. First operand 18526 states and 21166 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-16 04:20:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:20:58,208 INFO L93 Difference]: Finished difference Result 50757 states and 57460 transitions. [2024-11-16 04:20:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:20:58,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 345 [2024-11-16 04:20:58,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:20:58,264 INFO L225 Difference]: With dead ends: 50757 [2024-11-16 04:20:58,265 INFO L226 Difference]: Without dead ends: 32233 [2024-11-16 04:20:58,287 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 [2024-11-16 04:20:58,288 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 427 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:20:58,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 674 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:20:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32233 states. [2024-11-16 04:20:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32233 to 29640. [2024-11-16 04:20:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29640 states, 29639 states have (on average 1.1308073821653901) internal successors, (33516), 29639 states have internal predecessors, (33516), 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) [2024-11-16 04:20:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29640 states to 29640 states and 33516 transitions. [2024-11-16 04:20:58,899 INFO L78 Accepts]: Start accepts. Automaton has 29640 states and 33516 transitions. Word has length 345 [2024-11-16 04:20:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:20:58,900 INFO L471 AbstractCegarLoop]: Abstraction has 29640 states and 33516 transitions. [2024-11-16 04:20:58,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2024-11-16 04:20:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 29640 states and 33516 transitions. [2024-11-16 04:20:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-16 04:20:58,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:20:58,908 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:20:58,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:20:58,908 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:20:58,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:20:58,909 INFO L85 PathProgramCache]: Analyzing trace with hash -826509547, now seen corresponding path program 1 times [2024-11-16 04:20:58,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:20:58,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171233377] [2024-11-16 04:20:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:20:58,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:20:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:20:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-16 04:20:59,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:20:59,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171233377] [2024-11-16 04:20:59,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171233377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:20:59,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:20:59,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:20:59,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370446681] [2024-11-16 04:20:59,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:20:59,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:20:59,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:20:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:20:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:20:59,446 INFO L87 Difference]: Start difference. First operand 29640 states and 33516 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2024-11-16 04:21:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:01,124 INFO L93 Difference]: Finished difference Result 68681 states and 78069 transitions. [2024-11-16 04:21:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 346 [2024-11-16 04:21:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:01,198 INFO L225 Difference]: With dead ends: 68681 [2024-11-16 04:21:01,198 INFO L226 Difference]: Without dead ends: 39042 [2024-11-16 04:21:01,225 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 [2024-11-16 04:21:01,226 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 436 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:01,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 646 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:21:01,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39042 states. [2024-11-16 04:21:01,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39042 to 36905. [2024-11-16 04:21:01,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36905 states, 36904 states have (on average 1.1338066334272707) internal successors, (41842), 36904 states have internal predecessors, (41842), 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) [2024-11-16 04:21:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36905 states to 36905 states and 41842 transitions. [2024-11-16 04:21:01,675 INFO L78 Accepts]: Start accepts. Automaton has 36905 states and 41842 transitions. Word has length 346 [2024-11-16 04:21:01,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:01,676 INFO L471 AbstractCegarLoop]: Abstraction has 36905 states and 41842 transitions. [2024-11-16 04:21:01,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2024-11-16 04:21:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 36905 states and 41842 transitions. [2024-11-16 04:21:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-16 04:21:01,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:01,688 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:01,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:21:01,688 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:01,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:01,689 INFO L85 PathProgramCache]: Analyzing trace with hash -881355894, now seen corresponding path program 1 times [2024-11-16 04:21:01,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:01,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871466739] [2024-11-16 04:21:01,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:01,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:21:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:02,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871466739] [2024-11-16 04:21:02,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871466739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:02,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:02,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279626232] [2024-11-16 04:21:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:02,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:21:02,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:21:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:02,130 INFO L87 Difference]: Start difference. First operand 36905 states and 41842 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2024-11-16 04:21:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:04,322 INFO L93 Difference]: Finished difference Result 78920 states and 89163 transitions. [2024-11-16 04:21:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 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 348 [2024-11-16 04:21:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:04,370 INFO L225 Difference]: With dead ends: 78920 [2024-11-16 04:21:04,371 INFO L226 Difference]: Without dead ends: 41591 [2024-11-16 04:21:04,397 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 [2024-11-16 04:21:04,398 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 606 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:04,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 254 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 04:21:04,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41591 states. [2024-11-16 04:21:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41591 to 37331. [2024-11-16 04:21:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37331 states, 37330 states have (on average 1.1323332440396463) internal successors, (42270), 37330 states have internal predecessors, (42270), 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) [2024-11-16 04:21:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37331 states to 37331 states and 42270 transitions. [2024-11-16 04:21:04,965 INFO L78 Accepts]: Start accepts. Automaton has 37331 states and 42270 transitions. Word has length 348 [2024-11-16 04:21:04,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:04,966 INFO L471 AbstractCegarLoop]: Abstraction has 37331 states and 42270 transitions. [2024-11-16 04:21:04,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2024-11-16 04:21:04,966 INFO L276 IsEmpty]: Start isEmpty. Operand 37331 states and 42270 transitions. [2024-11-16 04:21:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-16 04:21:04,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:04,975 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:21:04,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:21:04,975 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:04,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1234722554, now seen corresponding path program 1 times [2024-11-16 04:21:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:04,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390722138] [2024-11-16 04:21:04,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:04,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 04:21:05,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:05,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390722138] [2024-11-16 04:21:05,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390722138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:05,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:05,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:21:05,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102991766] [2024-11-16 04:21:05,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:05,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:21:05,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:21:05,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:05,546 INFO L87 Difference]: Start difference. First operand 37331 states and 42270 transitions. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-11-16 04:21:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:08,111 INFO L93 Difference]: Finished difference Result 100329 states and 113545 transitions. [2024-11-16 04:21:08,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:08,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 350 [2024-11-16 04:21:08,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:08,193 INFO L225 Difference]: With dead ends: 100329 [2024-11-16 04:21:08,193 INFO L226 Difference]: Without dead ends: 63426 [2024-11-16 04:21:08,231 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 [2024-11-16 04:21:08,232 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 828 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:08,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 198 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 04:21:08,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63426 states. [2024-11-16 04:21:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63426 to 58298. [2024-11-16 04:21:08,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58298 states, 58297 states have (on average 1.1346896066692969) internal successors, (66149), 58297 states have internal predecessors, (66149), 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) [2024-11-16 04:21:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58298 states to 58298 states and 66149 transitions. [2024-11-16 04:21:08,962 INFO L78 Accepts]: Start accepts. Automaton has 58298 states and 66149 transitions. Word has length 350 [2024-11-16 04:21:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:08,962 INFO L471 AbstractCegarLoop]: Abstraction has 58298 states and 66149 transitions. [2024-11-16 04:21:08,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-11-16 04:21:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 58298 states and 66149 transitions. [2024-11-16 04:21:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-16 04:21:08,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:08,967 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-16 04:21:08,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:21:08,968 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:08,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:08,968 INFO L85 PathProgramCache]: Analyzing trace with hash 680733174, now seen corresponding path program 1 times [2024-11-16 04:21:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:08,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931335897] [2024-11-16 04:21:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 229 proven. 5 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-16 04:21:09,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:09,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931335897] [2024-11-16 04:21:09,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931335897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:09,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028384574] [2024-11-16 04:21:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:09,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:09,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:21:09,892 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) [2024-11-16 04:21:09,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:21:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:10,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 04:21:10,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:21:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 229 proven. 5 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-16 04:21:10,343 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:21:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-11-16 04:21:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028384574] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:21:10,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:21:10,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-16 04:21:10,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499273810] [2024-11-16 04:21:10,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:10,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:10,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:10,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:21:10,659 INFO L87 Difference]: Start difference. First operand 58298 states and 66149 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-16 04:21:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:12,463 INFO L93 Difference]: Finished difference Result 119136 states and 135025 transitions. [2024-11-16 04:21:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:12,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 365 [2024-11-16 04:21:12,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:12,524 INFO L225 Difference]: With dead ends: 119136 [2024-11-16 04:21:12,524 INFO L226 Difference]: Without dead ends: 60833 [2024-11-16 04:21:12,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 727 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:21:12,555 INFO L432 NwaCegarLoop]: 672 mSDtfsCounter, 483 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:12,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 718 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:21:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60833 states. [2024-11-16 04:21:13,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60833 to 60362. [2024-11-16 04:21:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60362 states, 60361 states have (on average 1.1168635377147496) internal successors, (67415), 60361 states have internal predecessors, (67415), 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) [2024-11-16 04:21:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60362 states to 60362 states and 67415 transitions. [2024-11-16 04:21:13,216 INFO L78 Accepts]: Start accepts. Automaton has 60362 states and 67415 transitions. Word has length 365 [2024-11-16 04:21:13,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:13,217 INFO L471 AbstractCegarLoop]: Abstraction has 60362 states and 67415 transitions. [2024-11-16 04:21:13,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-16 04:21:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand 60362 states and 67415 transitions. [2024-11-16 04:21:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-11-16 04:21:13,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:13,241 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:13,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:21:13,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:21:13,442 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:13,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1146198843, now seen corresponding path program 1 times [2024-11-16 04:21:13,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:13,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940925938] [2024-11-16 04:21:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:13,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:14,299 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-16 04:21:14,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:14,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940925938] [2024-11-16 04:21:14,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940925938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:14,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:14,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:14,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561471391] [2024-11-16 04:21:14,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:14,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:14,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:14,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:14,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:14,306 INFO L87 Difference]: Start difference. First operand 60362 states and 67415 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2024-11-16 04:21:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:16,074 INFO L93 Difference]: Finished difference Result 131827 states and 147003 transitions. [2024-11-16 04:21:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:16,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 578 [2024-11-16 04:21:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:16,147 INFO L225 Difference]: With dead ends: 131827 [2024-11-16 04:21:16,147 INFO L226 Difference]: Without dead ends: 70189 [2024-11-16 04:21:16,169 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 [2024-11-16 04:21:16,170 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 444 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:16,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 819 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:21:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70189 states. [2024-11-16 04:21:16,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70189 to 69322. [2024-11-16 04:21:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69322 states, 69321 states have (on average 1.107745127739069) internal successors, (76790), 69321 states have internal predecessors, (76790), 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) [2024-11-16 04:21:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69322 states to 69322 states and 76790 transitions. [2024-11-16 04:21:16,921 INFO L78 Accepts]: Start accepts. Automaton has 69322 states and 76790 transitions. Word has length 578 [2024-11-16 04:21:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:16,922 INFO L471 AbstractCegarLoop]: Abstraction has 69322 states and 76790 transitions. [2024-11-16 04:21:16,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2024-11-16 04:21:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 69322 states and 76790 transitions. [2024-11-16 04:21:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2024-11-16 04:21:16,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:16,949 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:16,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:21:16,949 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:16,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 640882603, now seen corresponding path program 1 times [2024-11-16 04:21:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:16,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30920999] [2024-11-16 04:21:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:16,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-16 04:21:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:17,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30920999] [2024-11-16 04:21:17,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30920999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:17,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:17,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601817690] [2024-11-16 04:21:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:17,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:17,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:17,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:17,474 INFO L87 Difference]: Start difference. First operand 69322 states and 76790 transitions. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-11-16 04:21:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:19,143 INFO L93 Difference]: Finished difference Result 145890 states and 161878 transitions. [2024-11-16 04:21:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 589 [2024-11-16 04:21:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:19,233 INFO L225 Difference]: With dead ends: 145890 [2024-11-16 04:21:19,234 INFO L226 Difference]: Without dead ends: 76996 [2024-11-16 04:21:19,274 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 [2024-11-16 04:21:19,274 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 503 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:19,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 678 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:21:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76996 states. [2024-11-16 04:21:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76996 to 76566. [2024-11-16 04:21:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76566 states, 76565 states have (on average 1.1029713315483576) internal successors, (84449), 76565 states have internal predecessors, (84449), 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) [2024-11-16 04:21:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76566 states to 76566 states and 84449 transitions. [2024-11-16 04:21:20,297 INFO L78 Accepts]: Start accepts. Automaton has 76566 states and 84449 transitions. Word has length 589 [2024-11-16 04:21:20,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:20,298 INFO L471 AbstractCegarLoop]: Abstraction has 76566 states and 84449 transitions. [2024-11-16 04:21:20,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2024-11-16 04:21:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 76566 states and 84449 transitions. [2024-11-16 04:21:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-11-16 04:21:20,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:20,314 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:20,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 04:21:20,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:20,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1554102683, now seen corresponding path program 1 times [2024-11-16 04:21:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:20,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850465931] [2024-11-16 04:21:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-11-16 04:21:21,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:21,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850465931] [2024-11-16 04:21:21,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850465931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:21,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:21,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:21,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634368758] [2024-11-16 04:21:21,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:21,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:21,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:21,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:21,476 INFO L87 Difference]: Start difference. First operand 76566 states and 84449 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-16 04:21:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:22,719 INFO L93 Difference]: Finished difference Result 152701 states and 168465 transitions. [2024-11-16 04:21:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 603 [2024-11-16 04:21:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:22,812 INFO L225 Difference]: With dead ends: 152701 [2024-11-16 04:21:22,812 INFO L226 Difference]: Without dead ends: 76563 [2024-11-16 04:21:23,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:23,006 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 625 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:23,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 554 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:21:23,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76563 states. [2024-11-16 04:21:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76563 to 76135. [2024-11-16 04:21:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76135 states, 76134 states have (on average 1.103055139622245) internal successors, (83980), 76134 states have internal predecessors, (83980), 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) [2024-11-16 04:21:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76135 states to 76135 states and 83980 transitions. [2024-11-16 04:21:24,138 INFO L78 Accepts]: Start accepts. Automaton has 76135 states and 83980 transitions. Word has length 603 [2024-11-16 04:21:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:24,139 INFO L471 AbstractCegarLoop]: Abstraction has 76135 states and 83980 transitions. [2024-11-16 04:21:24,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-16 04:21:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 76135 states and 83980 transitions. [2024-11-16 04:21:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-16 04:21:24,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:24,156 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:24,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:21:24,156 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:24,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1344461947, now seen corresponding path program 1 times [2024-11-16 04:21:24,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:24,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566304772] [2024-11-16 04:21:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:21:25,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:25,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566304772] [2024-11-16 04:21:25,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566304772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:25,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:25,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:25,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029209169] [2024-11-16 04:21:25,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:25,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:25,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:25,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:25,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:25,126 INFO L87 Difference]: Start difference. First operand 76135 states and 83980 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2024-11-16 04:21:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:26,902 INFO L93 Difference]: Finished difference Result 162519 states and 179641 transitions. [2024-11-16 04:21:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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 607 [2024-11-16 04:21:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:27,002 INFO L225 Difference]: With dead ends: 162519 [2024-11-16 04:21:27,002 INFO L226 Difference]: Without dead ends: 86812 [2024-11-16 04:21:27,041 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 [2024-11-16 04:21:27,042 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 101 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:27,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 770 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:21:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86812 states. [2024-11-16 04:21:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86812 to 83394. [2024-11-16 04:21:28,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83394 states, 83393 states have (on average 1.1016512177281066) internal successors, (91870), 83393 states have internal predecessors, (91870), 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) [2024-11-16 04:21:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83394 states to 83394 states and 91870 transitions. [2024-11-16 04:21:28,163 INFO L78 Accepts]: Start accepts. Automaton has 83394 states and 91870 transitions. Word has length 607 [2024-11-16 04:21:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:28,163 INFO L471 AbstractCegarLoop]: Abstraction has 83394 states and 91870 transitions. [2024-11-16 04:21:28,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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) [2024-11-16 04:21:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 83394 states and 91870 transitions. [2024-11-16 04:21:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2024-11-16 04:21:28,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:28,187 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:28,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:21:28,188 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:28,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1368730763, now seen corresponding path program 1 times [2024-11-16 04:21:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:28,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124089505] [2024-11-16 04:21:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:28,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:21:29,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:29,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124089505] [2024-11-16 04:21:29,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124089505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:29,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:29,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802449241] [2024-11-16 04:21:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:29,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:29,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:29,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:29,091 INFO L87 Difference]: Start difference. First operand 83394 states and 91870 transitions. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2024-11-16 04:21:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:31,020 INFO L93 Difference]: Finished difference Result 174474 states and 192309 transitions. [2024-11-16 04:21:31,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:31,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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 635 [2024-11-16 04:21:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:31,116 INFO L225 Difference]: With dead ends: 174474 [2024-11-16 04:21:31,117 INFO L226 Difference]: Without dead ends: 91508 [2024-11-16 04:21:31,129 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 [2024-11-16 04:21:31,130 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 118 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:31,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 338 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:21:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91508 states. [2024-11-16 04:21:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91508 to 88941. [2024-11-16 04:21:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88941 states, 88940 states have (on average 1.1002361142343153) internal successors, (97855), 88940 states have internal predecessors, (97855), 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) [2024-11-16 04:21:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88941 states to 88941 states and 97855 transitions. [2024-11-16 04:21:32,106 INFO L78 Accepts]: Start accepts. Automaton has 88941 states and 97855 transitions. Word has length 635 [2024-11-16 04:21:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:32,106 INFO L471 AbstractCegarLoop]: Abstraction has 88941 states and 97855 transitions. [2024-11-16 04:21:32,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2024-11-16 04:21:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 88941 states and 97855 transitions. [2024-11-16 04:21:32,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-16 04:21:32,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:32,133 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:32,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:21:32,133 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:32,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash -6306404, now seen corresponding path program 1 times [2024-11-16 04:21:32,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:32,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853159573] [2024-11-16 04:21:32,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:32,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-16 04:21:32,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853159573] [2024-11-16 04:21:32,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853159573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:32,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:32,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:32,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841270711] [2024-11-16 04:21:32,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:32,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:32,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:32,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:32,359 INFO L87 Difference]: Start difference. First operand 88941 states and 97855 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-16 04:21:34,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:34,387 INFO L93 Difference]: Finished difference Result 184289 states and 202737 transitions. [2024-11-16 04:21:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:34,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 696 [2024-11-16 04:21:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:34,503 INFO L225 Difference]: With dead ends: 184289 [2024-11-16 04:21:34,503 INFO L226 Difference]: Without dead ends: 94492 [2024-11-16 04:21:34,564 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 [2024-11-16 04:21:34,564 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 443 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:34,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 781 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 04:21:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94492 states. [2024-11-16 04:21:35,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94492 to 90211. [2024-11-16 04:21:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90211 states, 90210 states have (on average 1.1000886819643054) internal successors, (99239), 90210 states have internal predecessors, (99239), 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) [2024-11-16 04:21:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90211 states to 90211 states and 99239 transitions. [2024-11-16 04:21:35,891 INFO L78 Accepts]: Start accepts. Automaton has 90211 states and 99239 transitions. Word has length 696 [2024-11-16 04:21:35,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:35,892 INFO L471 AbstractCegarLoop]: Abstraction has 90211 states and 99239 transitions. [2024-11-16 04:21:35,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-16 04:21:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 90211 states and 99239 transitions. [2024-11-16 04:21:35,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-16 04:21:35,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:35,921 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:35,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 04:21:35,921 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:35,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:35,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1861639402, now seen corresponding path program 1 times [2024-11-16 04:21:35,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:35,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289474464] [2024-11-16 04:21:35,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-16 04:21:36,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:36,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289474464] [2024-11-16 04:21:36,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289474464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:36,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:36,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:21:36,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904105288] [2024-11-16 04:21:36,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:36,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:21:36,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:36,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:21:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:21:36,794 INFO L87 Difference]: Start difference. First operand 90211 states and 99239 transitions. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-11-16 04:21:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:38,578 INFO L93 Difference]: Finished difference Result 193236 states and 212523 transitions. [2024-11-16 04:21:38,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:21:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 699 [2024-11-16 04:21:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:38,694 INFO L225 Difference]: With dead ends: 193236 [2024-11-16 04:21:38,694 INFO L226 Difference]: Without dead ends: 103024 [2024-11-16 04:21:38,739 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 [2024-11-16 04:21:38,740 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 126 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:38,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 299 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 04:21:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103024 states. [2024-11-16 04:21:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103024 to 91492. [2024-11-16 04:21:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91492 states, 91491 states have (on average 1.0913532478604453) internal successors, (99849), 91491 states have internal predecessors, (99849), 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) [2024-11-16 04:21:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91492 states to 91492 states and 99849 transitions. [2024-11-16 04:21:40,057 INFO L78 Accepts]: Start accepts. Automaton has 91492 states and 99849 transitions. Word has length 699 [2024-11-16 04:21:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:21:40,057 INFO L471 AbstractCegarLoop]: Abstraction has 91492 states and 99849 transitions. [2024-11-16 04:21:40,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2024-11-16 04:21:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 91492 states and 99849 transitions. [2024-11-16 04:21:40,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2024-11-16 04:21:40,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:21:40,094 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:21:40,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:21:40,095 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:21:40,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:21:40,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1492845026, now seen corresponding path program 1 times [2024-11-16 04:21:40,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:21:40,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586577093] [2024-11-16 04:21:40,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:21:40,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:21:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:21:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-16 04:21:41,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:21:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586577093] [2024-11-16 04:21:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586577093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:21:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:21:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:21:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754616274] [2024-11-16 04:21:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:21:41,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:21:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:21:41,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:21:41,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:21:41,088 INFO L87 Difference]: Start difference. First operand 91492 states and 99849 transitions. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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) [2024-11-16 04:21:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:21:43,726 INFO L93 Difference]: Finished difference Result 204742 states and 223731 transitions. [2024-11-16 04:21:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:21:43,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 751 [2024-11-16 04:21:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:21:43,855 INFO L225 Difference]: With dead ends: 204742 [2024-11-16 04:21:43,856 INFO L226 Difference]: Without dead ends: 113678 [2024-11-16 04:21:43,869 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 [2024-11-16 04:21:43,870 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 586 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:21:43,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 294 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 04:21:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113678 states. [2024-11-16 04:21:44,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113678 to 102560.