./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_label50.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 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:54:42,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:54:42,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:54:42,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:54:42,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:54:42,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:54:42,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:54:42,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:54:42,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:54:42,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:54:42,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:54:42,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:54:42,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:54:42,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:54:42,744 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:54:42,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:54:42,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:54:42,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:54:42,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:54:42,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:54:42,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:54:42,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:54:42,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:54:42,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:54:42,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:54:42,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:54:42,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:54:42,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:54:42,748 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:54:42,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:54:42,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:54:42,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:54:42,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:54:42,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:54:42,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:54:42,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:54:42,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 451c7dc1e9ccbf0e1b2bfff20c93c74c6a2c224dafb02ba3904b999265578105 [2024-11-09 19:54:42,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:54:42,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:54:42,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:54:42,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:54:42,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:54:42,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-09 19:54:44,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:54:44,569 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:54:44,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label50.c [2024-11-09 19:54:44,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f708b50/24121a90d233485787ebf4485f1b5843/FLAGa966b413c [2024-11-09 19:54:44,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f708b50/24121a90d233485787ebf4485f1b5843 [2024-11-09 19:54:44,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:54:44,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:54:44,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:54:44,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:54:44,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:54:44,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:54:44" (1/1) ... [2024-11-09 19:54:44,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@beff5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:44, skipping insertion in model container [2024-11-09 19:54:44,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:54:44" (1/1) ... [2024-11-09 19:54:44,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:54:45,140 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_label50.c[1517,1530] [2024-11-09 19:54:45,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:54:45,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:54:45,799 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_label50.c[1517,1530] [2024-11-09 19:54:46,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:54:46,092 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:54:46,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46 WrapperNode [2024-11-09 19:54:46,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:54:46,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:54:46,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:54:46,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:54:46,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,369 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-09 19:54:46,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:54:46,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:54:46,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:54:46,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:54:46,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,550 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]. [2024-11-09 19:54:46,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,624 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:54:46,698 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:54:46,698 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:54:46,698 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:54:46,699 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (1/1) ... [2024-11-09 19:54:46,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:54:46,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:54:46,726 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) [2024-11-09 19:54:46,728 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 [2024-11-09 19:54:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:54:46,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:54:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:54:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:54:46,830 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:54:46,832 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:54:49,751 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2024-11-09 19:54:49,970 INFO L? ?]: Removed 949 outVars from TransFormulas that were not future-live. [2024-11-09 19:54:49,970 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:54:50,008 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:54:50,008 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:54:50,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:54:50 BoogieIcfgContainer [2024-11-09 19:54:50,009 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:54:50,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:54:50,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:54:50,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:54:50,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:54:44" (1/3) ... [2024-11-09 19:54:50,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a02f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:54:50, skipping insertion in model container [2024-11-09 19:54:50,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:54:46" (2/3) ... [2024-11-09 19:54:50,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a02f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:54:50, skipping insertion in model container [2024-11-09 19:54:50,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:54:50" (3/3) ... [2024-11-09 19:54:50,025 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label50.c [2024-11-09 19:54:50,056 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:54:50,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:54:50,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:54:50,148 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;@3a8a1449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:54:50,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:54:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:54:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 19:54:50,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:50,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:54:50,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:50,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:50,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1568673902, now seen corresponding path program 1 times [2024-11-09 19:54:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:50,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926098029] [2024-11-09 19:54:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:50,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:54:50,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:50,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926098029] [2024-11-09 19:54:50,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926098029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:50,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:50,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:54:50,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865842578] [2024-11-09 19:54:50,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:50,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:54:50,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:54:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:54:50,413 INFO L87 Difference]: Start difference. First operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 0 states have call successors, (0), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:54:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:54:53,329 INFO L93 Difference]: Finished difference Result 1650 states and 4109 transitions. [2024-11-09 19:54:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:54:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2024-11-09 19:54:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:54:53,345 INFO L225 Difference]: With dead ends: 1650 [2024-11-09 19:54:53,345 INFO L226 Difference]: Without dead ends: 980 [2024-11-09 19:54:53,353 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 [2024-11-09 19:54:53,356 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 837 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:54:53,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 506 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:54:53,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-11-09 19:54:53,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2024-11-09 19:54:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 973 states have (on average 2.287769784172662) internal successors, (2226), 973 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:54:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 2226 transitions. [2024-11-09 19:54:53,427 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 2226 transitions. Word has length 11 [2024-11-09 19:54:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:53,428 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 2226 transitions. [2024-11-09 19:54:53,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:54:53,428 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 2226 transitions. [2024-11-09 19:54:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 19:54:53,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:53,430 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:54:53,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:54:53,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:53,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1906108558, now seen corresponding path program 1 times [2024-11-09 19:54:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:53,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028036089] [2024-11-09 19:54:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:53,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:54:53,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028036089] [2024-11-09 19:54:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028036089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:53,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:53,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:54:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467815180] [2024-11-09 19:54:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:53,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:54:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:54:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:54:53,623 INFO L87 Difference]: Start difference. First operand 974 states and 2226 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 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) [2024-11-09 19:54:56,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:54:56,120 INFO L93 Difference]: Finished difference Result 2824 states and 6539 transitions. [2024-11-09 19:54:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:54:56,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 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 [2024-11-09 19:54:56,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:54:56,127 INFO L225 Difference]: With dead ends: 2824 [2024-11-09 19:54:56,127 INFO L226 Difference]: Without dead ends: 1852 [2024-11-09 19:54:56,128 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 [2024-11-09 19:54:56,129 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 766 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:54:56,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 586 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 19:54:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-09 19:54:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1846. [2024-11-09 19:54:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 2.1257452574525746) internal successors, (3922), 1845 states have internal predecessors, (3922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:54:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 3922 transitions. [2024-11-09 19:54:56,157 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 3922 transitions. Word has length 79 [2024-11-09 19:54:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:54:56,157 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 3922 transitions. [2024-11-09 19:54:56,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 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) [2024-11-09 19:54:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 3922 transitions. [2024-11-09 19:54:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 19:54:56,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:54:56,159 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:54:56,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:54:56,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:54:56,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:54:56,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1832235557, now seen corresponding path program 1 times [2024-11-09 19:54:56,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:54:56,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873975228] [2024-11-09 19:54:56,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:54:56,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:54:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:54:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:54:56,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:54:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873975228] [2024-11-09 19:54:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873975228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:54:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:54:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:54:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861817021] [2024-11-09 19:54:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:54:56,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:54:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:54:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:54:56,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:54:56,426 INFO L87 Difference]: Start difference. First operand 1846 states and 3922 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:00,390 INFO L93 Difference]: Finished difference Result 6782 states and 14649 transitions. [2024-11-09 19:55:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:55:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-09 19:55:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:00,406 INFO L225 Difference]: With dead ends: 6782 [2024-11-09 19:55:00,406 INFO L226 Difference]: Without dead ends: 4938 [2024-11-09 19:55:00,408 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 [2024-11-09 19:55:00,409 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1673 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 3946 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 4721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 3946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:00,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 291 Invalid, 4721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 3946 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:55:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2024-11-09 19:55:00,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4887. [2024-11-09 19:55:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4887 states, 4886 states have (on average 2.0918952108063857) internal successors, (10221), 4886 states have internal predecessors, (10221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 10221 transitions. [2024-11-09 19:55:00,481 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 10221 transitions. Word has length 82 [2024-11-09 19:55:00,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:00,482 INFO L471 AbstractCegarLoop]: Abstraction has 4887 states and 10221 transitions. [2024-11-09 19:55:00,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 10221 transitions. [2024-11-09 19:55:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-09 19:55:00,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:00,485 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:00,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:55:00,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:00,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:00,485 INFO L85 PathProgramCache]: Analyzing trace with hash -54397561, now seen corresponding path program 1 times [2024-11-09 19:55:00,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:00,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914292156] [2024-11-09 19:55:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:00,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 19:55:00,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:00,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914292156] [2024-11-09 19:55:00,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914292156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:00,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:00,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204235698] [2024-11-09 19:55:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:00,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:00,649 INFO L87 Difference]: Start difference. First operand 4887 states and 10221 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:02,831 INFO L93 Difference]: Finished difference Result 14471 states and 30393 transitions. [2024-11-09 19:55:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 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 154 [2024-11-09 19:55:02,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:02,855 INFO L225 Difference]: With dead ends: 14471 [2024-11-09 19:55:02,856 INFO L226 Difference]: Without dead ends: 8297 [2024-11-09 19:55:02,861 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 [2024-11-09 19:55:02,862 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 745 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:02,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 591 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 19:55:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8297 states. [2024-11-09 19:55:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8297 to 6159. [2024-11-09 19:55:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6159 states, 6158 states have (on average 2.0043845404352063) internal successors, (12343), 6158 states have internal predecessors, (12343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6159 states to 6159 states and 12343 transitions. [2024-11-09 19:55:02,987 INFO L78 Accepts]: Start accepts. Automaton has 6159 states and 12343 transitions. Word has length 154 [2024-11-09 19:55:02,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:02,988 INFO L471 AbstractCegarLoop]: Abstraction has 6159 states and 12343 transitions. [2024-11-09 19:55:02,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6159 states and 12343 transitions. [2024-11-09 19:55:02,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-09 19:55:02,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:02,991 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:55:02,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:55:02,992 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:02,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:02,992 INFO L85 PathProgramCache]: Analyzing trace with hash 684362544, now seen corresponding path program 1 times [2024-11-09 19:55:02,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:02,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019569577] [2024-11-09 19:55:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:02,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 19:55:03,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:03,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019569577] [2024-11-09 19:55:03,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019569577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:03,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:03,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682748867] [2024-11-09 19:55:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:03,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:03,214 INFO L87 Difference]: Start difference. First operand 6159 states and 12343 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:05,923 INFO L93 Difference]: Finished difference Result 14937 states and 30028 transitions. [2024-11-09 19:55:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:05,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 167 [2024-11-09 19:55:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:05,949 INFO L225 Difference]: With dead ends: 14937 [2024-11-09 19:55:05,950 INFO L226 Difference]: Without dead ends: 8780 [2024-11-09 19:55:05,958 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 [2024-11-09 19:55:05,960 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 901 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:05,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 259 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 19:55:05,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8780 states. [2024-11-09 19:55:06,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8780 to 8326. [2024-11-09 19:55:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.018258258258258) internal successors, (16802), 8325 states have internal predecessors, (16802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 16802 transitions. [2024-11-09 19:55:06,115 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 16802 transitions. Word has length 167 [2024-11-09 19:55:06,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:06,116 INFO L471 AbstractCegarLoop]: Abstraction has 8326 states and 16802 transitions. [2024-11-09 19:55:06,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:06,117 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 16802 transitions. [2024-11-09 19:55:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-09 19:55:06,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:06,119 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:06,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:55:06,119 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:06,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:06,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1757153675, now seen corresponding path program 1 times [2024-11-09 19:55:06,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:06,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590061470] [2024-11-09 19:55:06,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:06,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 19:55:06,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:06,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590061470] [2024-11-09 19:55:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590061470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:06,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:06,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:06,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424321512] [2024-11-09 19:55:06,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:06,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:06,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:06,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:06,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:06,255 INFO L87 Difference]: Start difference. First operand 8326 states and 16802 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:08,295 INFO L93 Difference]: Finished difference Result 20915 states and 42848 transitions. [2024-11-09 19:55:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:08,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2024-11-09 19:55:08,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:08,316 INFO L225 Difference]: With dead ends: 20915 [2024-11-09 19:55:08,317 INFO L226 Difference]: Without dead ends: 12591 [2024-11-09 19:55:08,324 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 [2024-11-09 19:55:08,325 INFO L432 NwaCegarLoop]: 1103 mSDtfsCounter, 848 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:08,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1162 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12591 states. [2024-11-09 19:55:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12591 to 12591. [2024-11-09 19:55:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12591 states, 12590 states have (on average 2.0131850675139) internal successors, (25346), 12590 states have internal predecessors, (25346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12591 states to 12591 states and 25346 transitions. [2024-11-09 19:55:08,488 INFO L78 Accepts]: Start accepts. Automaton has 12591 states and 25346 transitions. Word has length 170 [2024-11-09 19:55:08,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:08,489 INFO L471 AbstractCegarLoop]: Abstraction has 12591 states and 25346 transitions. [2024-11-09 19:55:08,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 12591 states and 25346 transitions. [2024-11-09 19:55:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-09 19:55:08,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:08,492 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:55:08,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:08,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2134552995, now seen corresponding path program 1 times [2024-11-09 19:55:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660816100] [2024-11-09 19:55:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 19:55:08,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:08,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660816100] [2024-11-09 19:55:08,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660816100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:08,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:08,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025902909] [2024-11-09 19:55:08,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:08,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:08,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:08,680 INFO L87 Difference]: Start difference. First operand 12591 states and 25346 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:10,848 INFO L93 Difference]: Finished difference Result 30279 states and 61573 transitions. [2024-11-09 19:55:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 251 [2024-11-09 19:55:10,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:10,884 INFO L225 Difference]: With dead ends: 30279 [2024-11-09 19:55:10,884 INFO L226 Difference]: Without dead ends: 15985 [2024-11-09 19:55:10,896 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 [2024-11-09 19:55:10,897 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 746 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:10,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1263 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:10,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15985 states. [2024-11-09 19:55:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15985 to 15985. [2024-11-09 19:55:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15985 states, 15984 states have (on average 1.9642142142142143) internal successors, (31396), 15984 states have internal predecessors, (31396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:11,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15985 states to 15985 states and 31396 transitions. [2024-11-09 19:55:11,178 INFO L78 Accepts]: Start accepts. Automaton has 15985 states and 31396 transitions. Word has length 251 [2024-11-09 19:55:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:11,179 INFO L471 AbstractCegarLoop]: Abstraction has 15985 states and 31396 transitions. [2024-11-09 19:55:11,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 15985 states and 31396 transitions. [2024-11-09 19:55:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-09 19:55:11,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:11,182 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:11,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:55:11,182 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:11,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:11,182 INFO L85 PathProgramCache]: Analyzing trace with hash -868081684, now seen corresponding path program 1 times [2024-11-09 19:55:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842124633] [2024-11-09 19:55:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:11,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:11,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:11,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842124633] [2024-11-09 19:55:11,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842124633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:11,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:11,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:11,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535149426] [2024-11-09 19:55:11,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:11,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:11,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:11,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:11,393 INFO L87 Difference]: Start difference. First operand 15985 states and 31396 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:13,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:13,538 INFO L93 Difference]: Finished difference Result 40108 states and 79207 transitions. [2024-11-09 19:55:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 270 [2024-11-09 19:55:13,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:13,573 INFO L225 Difference]: With dead ends: 40108 [2024-11-09 19:55:13,573 INFO L226 Difference]: Without dead ends: 23271 [2024-11-09 19:55:13,589 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 [2024-11-09 19:55:13,590 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 662 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:13,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1199 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23271 states. [2024-11-09 19:55:13,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23271 to 23260. [2024-11-09 19:55:13,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23260 states, 23259 states have (on average 1.9454834687647793) internal successors, (45250), 23259 states have internal predecessors, (45250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23260 states to 23260 states and 45250 transitions. [2024-11-09 19:55:14,022 INFO L78 Accepts]: Start accepts. Automaton has 23260 states and 45250 transitions. Word has length 270 [2024-11-09 19:55:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:14,022 INFO L471 AbstractCegarLoop]: Abstraction has 23260 states and 45250 transitions. [2024-11-09 19:55:14,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23260 states and 45250 transitions. [2024-11-09 19:55:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-09 19:55:14,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:14,027 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:14,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:55:14,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:14,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1513988224, now seen corresponding path program 1 times [2024-11-09 19:55:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349736223] [2024-11-09 19:55:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:14,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-09 19:55:14,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:14,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349736223] [2024-11-09 19:55:14,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349736223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:14,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:14,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262616336] [2024-11-09 19:55:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:14,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:14,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:14,255 INFO L87 Difference]: Start difference. First operand 23260 states and 45250 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:16,640 INFO L93 Difference]: Finished difference Result 52088 states and 101773 transitions. [2024-11-09 19:55:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:16,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-09 19:55:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:16,681 INFO L225 Difference]: With dead ends: 52088 [2024-11-09 19:55:16,682 INFO L226 Difference]: Without dead ends: 27118 [2024-11-09 19:55:16,703 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 [2024-11-09 19:55:16,703 INFO L432 NwaCegarLoop]: 1150 mSDtfsCounter, 828 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:16,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1222 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 19:55:16,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27118 states. [2024-11-09 19:55:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27118 to 27111. [2024-11-09 19:55:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27111 states, 27110 states have (on average 1.947399483585393) internal successors, (52794), 27110 states have internal predecessors, (52794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27111 states to 27111 states and 52794 transitions. [2024-11-09 19:55:17,109 INFO L78 Accepts]: Start accepts. Automaton has 27111 states and 52794 transitions. Word has length 326 [2024-11-09 19:55:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:17,110 INFO L471 AbstractCegarLoop]: Abstraction has 27111 states and 52794 transitions. [2024-11-09 19:55:17,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:17,110 INFO L276 IsEmpty]: Start isEmpty. Operand 27111 states and 52794 transitions. [2024-11-09 19:55:17,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-09 19:55:17,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:17,119 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:55:17,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:55:17,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:17,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1132304531, now seen corresponding path program 1 times [2024-11-09 19:55:17,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:17,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807108380] [2024-11-09 19:55:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:17,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:55:17,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807108380] [2024-11-09 19:55:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807108380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:17,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:17,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:17,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935807697] [2024-11-09 19:55:17,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:17,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:17,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:17,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:17,507 INFO L87 Difference]: Start difference. First operand 27111 states and 52794 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:19,844 INFO L93 Difference]: Finished difference Result 65367 states and 127610 transitions. [2024-11-09 19:55:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 376 [2024-11-09 19:55:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:19,893 INFO L225 Difference]: With dead ends: 65367 [2024-11-09 19:55:19,894 INFO L226 Difference]: Without dead ends: 38258 [2024-11-09 19:55:19,913 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 [2024-11-09 19:55:19,913 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 711 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:19,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1071 Invalid, 2333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 19:55:19,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38258 states. [2024-11-09 19:55:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38258 to 36084. [2024-11-09 19:55:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36084 states, 36083 states have (on average 1.956904913671258) internal successors, (70611), 36083 states have internal predecessors, (70611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36084 states to 36084 states and 70611 transitions. [2024-11-09 19:55:20,394 INFO L78 Accepts]: Start accepts. Automaton has 36084 states and 70611 transitions. Word has length 376 [2024-11-09 19:55:20,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:20,395 INFO L471 AbstractCegarLoop]: Abstraction has 36084 states and 70611 transitions. [2024-11-09 19:55:20,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:20,395 INFO L276 IsEmpty]: Start isEmpty. Operand 36084 states and 70611 transitions. [2024-11-09 19:55:20,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-09 19:55:20,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:20,402 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:55:20,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:55:20,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:20,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1458606883, now seen corresponding path program 1 times [2024-11-09 19:55:20,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:20,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392425471] [2024-11-09 19:55:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:20,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:20,616 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-09 19:55:20,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:20,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392425471] [2024-11-09 19:55:20,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392425471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:20,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:20,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:20,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646423052] [2024-11-09 19:55:20,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:20,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:20,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:20,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:20,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:20,618 INFO L87 Difference]: Start difference. First operand 36084 states and 70611 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:23,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:23,022 INFO L93 Difference]: Finished difference Result 81170 states and 159016 transitions. [2024-11-09 19:55:23,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2024-11-09 19:55:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:23,075 INFO L225 Difference]: With dead ends: 81170 [2024-11-09 19:55:23,075 INFO L226 Difference]: Without dead ends: 44662 [2024-11-09 19:55:23,097 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 [2024-11-09 19:55:23,098 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 882 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:23,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 201 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:55:23,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44662 states. [2024-11-09 19:55:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44662 to 35652. [2024-11-09 19:55:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35652 states, 35651 states have (on average 1.9575046983254327) internal successors, (69787), 35651 states have internal predecessors, (69787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35652 states to 35652 states and 69787 transitions. [2024-11-09 19:55:23,455 INFO L78 Accepts]: Start accepts. Automaton has 35652 states and 69787 transitions. Word has length 377 [2024-11-09 19:55:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:23,455 INFO L471 AbstractCegarLoop]: Abstraction has 35652 states and 69787 transitions. [2024-11-09 19:55:23,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 35652 states and 69787 transitions. [2024-11-09 19:55:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-09 19:55:23,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:23,461 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:23,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:55:23,461 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:23,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash -394390125, now seen corresponding path program 1 times [2024-11-09 19:55:23,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:23,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070244730] [2024-11-09 19:55:23,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:23,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 19:55:23,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:23,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070244730] [2024-11-09 19:55:23,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070244730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:23,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:23,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:23,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85092105] [2024-11-09 19:55:23,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:23,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:23,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:23,787 INFO L87 Difference]: Start difference. First operand 35652 states and 69787 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:25,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:25,935 INFO L93 Difference]: Finished difference Result 77301 states and 151328 transitions. [2024-11-09 19:55:25,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:25,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 379 [2024-11-09 19:55:25,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:25,985 INFO L225 Difference]: With dead ends: 77301 [2024-11-09 19:55:25,985 INFO L226 Difference]: Without dead ends: 41651 [2024-11-09 19:55:26,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:26,008 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 688 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:26,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1230 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:55:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41651 states. [2024-11-09 19:55:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41651 to 40346. [2024-11-09 19:55:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40346 states, 40345 states have (on average 1.954318998636758) internal successors, (78847), 40345 states have internal predecessors, (78847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40346 states to 40346 states and 78847 transitions. [2024-11-09 19:55:26,420 INFO L78 Accepts]: Start accepts. Automaton has 40346 states and 78847 transitions. Word has length 379 [2024-11-09 19:55:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:26,421 INFO L471 AbstractCegarLoop]: Abstraction has 40346 states and 78847 transitions. [2024-11-09 19:55:26,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 40346 states and 78847 transitions. [2024-11-09 19:55:26,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-09 19:55:26,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:26,427 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:26,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:55:26,428 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:26,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash 114826827, now seen corresponding path program 1 times [2024-11-09 19:55:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399785980] [2024-11-09 19:55:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:55:26,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:26,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399785980] [2024-11-09 19:55:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399785980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:26,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:26,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90583192] [2024-11-09 19:55:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:26,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:26,698 INFO L87 Difference]: Start difference. First operand 40346 states and 78847 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) [2024-11-09 19:55:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:29,235 INFO L93 Difference]: Finished difference Result 93531 states and 183815 transitions. [2024-11-09 19:55:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:29,236 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 410 [2024-11-09 19:55:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:29,312 INFO L225 Difference]: With dead ends: 93531 [2024-11-09 19:55:29,312 INFO L226 Difference]: Without dead ends: 51030 [2024-11-09 19:55:29,342 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 [2024-11-09 19:55:29,342 INFO L432 NwaCegarLoop]: 997 mSDtfsCounter, 761 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:29,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1055 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:55:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51030 states. [2024-11-09 19:55:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51030 to 51012. [2024-11-09 19:55:29,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51012 states, 51011 states have (on average 1.9567348219011587) internal successors, (99815), 51011 states have internal predecessors, (99815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51012 states to 51012 states and 99815 transitions. [2024-11-09 19:55:29,900 INFO L78 Accepts]: Start accepts. Automaton has 51012 states and 99815 transitions. Word has length 410 [2024-11-09 19:55:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:29,901 INFO L471 AbstractCegarLoop]: Abstraction has 51012 states and 99815 transitions. [2024-11-09 19:55:29,901 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) [2024-11-09 19:55:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 51012 states and 99815 transitions. [2024-11-09 19:55:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-09 19:55:29,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:29,907 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:29,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:55:29,907 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:29,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1837753052, now seen corresponding path program 1 times [2024-11-09 19:55:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:29,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554839980] [2024-11-09 19:55:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:55:30,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:30,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554839980] [2024-11-09 19:55:30,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554839980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:30,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:30,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:30,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537317233] [2024-11-09 19:55:30,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:30,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:30,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:30,127 INFO L87 Difference]: Start difference. First operand 51012 states and 99815 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:32,417 INFO L93 Difference]: Finished difference Result 101585 states and 198775 transitions. [2024-11-09 19:55:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:32,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2024-11-09 19:55:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:32,477 INFO L225 Difference]: With dead ends: 101585 [2024-11-09 19:55:32,478 INFO L226 Difference]: Without dead ends: 50573 [2024-11-09 19:55:32,497 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 [2024-11-09 19:55:32,498 INFO L432 NwaCegarLoop]: 1036 mSDtfsCounter, 855 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:32,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1104 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:55:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50573 states. [2024-11-09 19:55:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50573 to 50139. [2024-11-09 19:55:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50139 states, 50138 states have (on average 1.9236706689536878) internal successors, (96449), 50138 states have internal predecessors, (96449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50139 states to 50139 states and 96449 transitions. [2024-11-09 19:55:32,981 INFO L78 Accepts]: Start accepts. Automaton has 50139 states and 96449 transitions. Word has length 412 [2024-11-09 19:55:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:32,982 INFO L471 AbstractCegarLoop]: Abstraction has 50139 states and 96449 transitions. [2024-11-09 19:55:32,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 50139 states and 96449 transitions. [2024-11-09 19:55:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-09 19:55:32,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:32,988 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:32,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:55:32,989 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:32,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:32,989 INFO L85 PathProgramCache]: Analyzing trace with hash -354824228, now seen corresponding path program 1 times [2024-11-09 19:55:32,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:32,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704647787] [2024-11-09 19:55:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:32,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:55:33,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:33,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704647787] [2024-11-09 19:55:33,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704647787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:33,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:33,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:33,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020127876] [2024-11-09 19:55:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:33,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:33,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:33,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:33,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:33,991 INFO L87 Difference]: Start difference. First operand 50139 states and 96449 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:36,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:36,323 INFO L93 Difference]: Finished difference Result 106692 states and 205509 transitions. [2024-11-09 19:55:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:36,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 419 [2024-11-09 19:55:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:36,406 INFO L225 Difference]: With dead ends: 106692 [2024-11-09 19:55:36,406 INFO L226 Difference]: Without dead ends: 56555 [2024-11-09 19:55:36,427 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 [2024-11-09 19:55:36,428 INFO L432 NwaCegarLoop]: 1096 mSDtfsCounter, 651 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:36,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1161 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:55:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56555 states. [2024-11-09 19:55:37,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56555 to 52270. [2024-11-09 19:55:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52270 states, 52269 states have (on average 1.9226118731944364) internal successors, (100493), 52269 states have internal predecessors, (100493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52270 states to 52270 states and 100493 transitions. [2024-11-09 19:55:37,365 INFO L78 Accepts]: Start accepts. Automaton has 52270 states and 100493 transitions. Word has length 419 [2024-11-09 19:55:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:37,369 INFO L471 AbstractCegarLoop]: Abstraction has 52270 states and 100493 transitions. [2024-11-09 19:55:37,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 52270 states and 100493 transitions. [2024-11-09 19:55:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-09 19:55:37,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:37,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:37,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:55:37,387 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:37,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1370892775, now seen corresponding path program 1 times [2024-11-09 19:55:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:37,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573766094] [2024-11-09 19:55:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:37,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:55:37,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:37,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573766094] [2024-11-09 19:55:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573766094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:37,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:37,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:37,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309961200] [2024-11-09 19:55:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:37,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:37,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:37,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:37,747 INFO L87 Difference]: Start difference. First operand 52270 states and 100493 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:40,298 INFO L93 Difference]: Finished difference Result 124192 states and 239511 transitions. [2024-11-09 19:55:40,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:40,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 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 444 [2024-11-09 19:55:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:40,395 INFO L225 Difference]: With dead ends: 124192 [2024-11-09 19:55:40,395 INFO L226 Difference]: Without dead ends: 71923 [2024-11-09 19:55:40,411 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 [2024-11-09 19:55:40,412 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 873 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:40,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 329 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 19:55:40,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71923 states. [2024-11-09 19:55:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71923 to 69758. [2024-11-09 19:55:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69758 states, 69757 states have (on average 1.9278638702925872) internal successors, (134482), 69757 states have internal predecessors, (134482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69758 states to 69758 states and 134482 transitions. [2024-11-09 19:55:41,300 INFO L78 Accepts]: Start accepts. Automaton has 69758 states and 134482 transitions. Word has length 444 [2024-11-09 19:55:41,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:41,300 INFO L471 AbstractCegarLoop]: Abstraction has 69758 states and 134482 transitions. [2024-11-09 19:55:41,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 69758 states and 134482 transitions. [2024-11-09 19:55:41,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-09 19:55:41,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:41,309 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:55:41,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:55:41,309 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:41,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 303184382, now seen corresponding path program 1 times [2024-11-09 19:55:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776163556] [2024-11-09 19:55:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:41,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-09 19:55:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776163556] [2024-11-09 19:55:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776163556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:41,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907324458] [2024-11-09 19:55:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:41,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:41,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:41,931 INFO L87 Difference]: Start difference. First operand 69758 states and 134482 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:44,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:44,206 INFO L93 Difference]: Finished difference Result 151473 states and 292160 transitions. [2024-11-09 19:55:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:44,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 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 447 [2024-11-09 19:55:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:44,309 INFO L225 Difference]: With dead ends: 151473 [2024-11-09 19:55:44,309 INFO L226 Difference]: Without dead ends: 81717 [2024-11-09 19:55:44,342 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 [2024-11-09 19:55:44,343 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 654 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:44,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 423 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:55:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81717 states. [2024-11-09 19:55:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81717 to 80416. [2024-11-09 19:55:45,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80416 states, 80415 states have (on average 1.9258471678169495) internal successors, (154867), 80415 states have internal predecessors, (154867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80416 states to 80416 states and 154867 transitions. [2024-11-09 19:55:45,379 INFO L78 Accepts]: Start accepts. Automaton has 80416 states and 154867 transitions. Word has length 447 [2024-11-09 19:55:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:45,379 INFO L471 AbstractCegarLoop]: Abstraction has 80416 states and 154867 transitions. [2024-11-09 19:55:45,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 80416 states and 154867 transitions. [2024-11-09 19:55:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-09 19:55:45,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:45,620 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:55:45,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:55:45,624 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:45,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2135907728, now seen corresponding path program 1 times [2024-11-09 19:55:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:45,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728502265] [2024-11-09 19:55:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 280 proven. 83 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 19:55:46,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:46,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728502265] [2024-11-09 19:55:46,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728502265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:46,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156356657] [2024-11-09 19:55:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:46,650 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) [2024-11-09 19:55:46,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:55:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:47,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 19:55:47,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:55:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 198 proven. 173 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:47,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:55:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:48,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156356657] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:48,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:55:48,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 5] total 9 [2024-11-09 19:55:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988145541] [2024-11-09 19:55:48,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:48,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 19:55:48,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:48,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 19:55:48,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:55:48,064 INFO L87 Difference]: Start difference. First operand 80416 states and 154867 transitions. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:52,716 INFO L93 Difference]: Finished difference Result 182174 states and 351499 transitions. [2024-11-09 19:55:52,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:55:52,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 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 464 [2024-11-09 19:55:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:52,960 INFO L225 Difference]: With dead ends: 182174 [2024-11-09 19:55:52,961 INFO L226 Difference]: Without dead ends: 99617 [2024-11-09 19:55:53,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:55:53,016 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2164 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4428 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 4974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 4428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:53,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 214 Invalid, 4974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 4428 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:55:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99617 states. [2024-11-09 19:55:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99617 to 84241. [2024-11-09 19:55:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84241 states, 84240 states have (on average 1.9243708452041786) internal successors, (162109), 84240 states have internal predecessors, (162109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84241 states to 84241 states and 162109 transitions. [2024-11-09 19:55:54,691 INFO L78 Accepts]: Start accepts. Automaton has 84241 states and 162109 transitions. Word has length 464 [2024-11-09 19:55:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:54,694 INFO L471 AbstractCegarLoop]: Abstraction has 84241 states and 162109 transitions. [2024-11-09 19:55:54,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 84241 states and 162109 transitions. [2024-11-09 19:55:55,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-09 19:55:55,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:55,127 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:55,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:55:55,328 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,SelfDestructingSolverStorable17 [2024-11-09 19:55:55,328 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:55,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1385675900, now seen corresponding path program 1 times [2024-11-09 19:55:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:55,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755786326] [2024-11-09 19:55:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:55,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-09 19:55:55,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:55,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755786326] [2024-11-09 19:55:55,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755786326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:55,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:55,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:55,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011596928] [2024-11-09 19:55:55,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:55,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:55,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:55,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:55,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:55,618 INFO L87 Difference]: Start difference. First operand 84241 states and 162109 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:58,088 INFO L93 Difference]: Finished difference Result 180442 states and 347223 transitions. [2024-11-09 19:55:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:58,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 497 [2024-11-09 19:55:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:58,207 INFO L225 Difference]: With dead ends: 180442 [2024-11-09 19:55:58,208 INFO L226 Difference]: Without dead ends: 96203 [2024-11-09 19:55:58,256 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 [2024-11-09 19:55:58,257 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 657 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:58,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 405 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96203 states. [2024-11-09 19:55:59,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96203 to 85947. [2024-11-09 19:55:59,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85947 states, 85946 states have (on average 1.921764829078724) internal successors, (165168), 85946 states have internal predecessors, (165168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85947 states to 85947 states and 165168 transitions. [2024-11-09 19:55:59,745 INFO L78 Accepts]: Start accepts. Automaton has 85947 states and 165168 transitions. Word has length 497 [2024-11-09 19:55:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:59,745 INFO L471 AbstractCegarLoop]: Abstraction has 85947 states and 165168 transitions. [2024-11-09 19:55:59,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 85947 states and 165168 transitions. [2024-11-09 19:55:59,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-09 19:55:59,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:59,761 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:59,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:55:59,761 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:59,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1776440201, now seen corresponding path program 1 times [2024-11-09 19:55:59,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:59,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558545822] [2024-11-09 19:55:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:56:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 331 proven. 8 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-09 19:56:01,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:56:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558545822] [2024-11-09 19:56:01,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558545822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:56:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273873741] [2024-11-09 19:56:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:56:01,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:56:01,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:56:01,042 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) [2024-11-09 19:56:01,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:56:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:56:01,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 19:56:01,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:56:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 393 proven. 83 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 19:56:01,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:56:02,617 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 393 proven. 83 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 19:56:02,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273873741] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:56:02,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:56:02,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-09 19:56:02,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443055773] [2024-11-09 19:56:02,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:56:02,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:56:02,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:56:02,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:56:02,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:56:02,620 INFO L87 Difference]: Start difference. First operand 85947 states and 165168 transitions. Second operand has 9 states, 9 states have (on average 98.33333333333333) internal successors, (885), 9 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)