./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label32.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 d6a56bada7206875b5522c4732ed558727da026e7bf600ff2a0cdce747605d25 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:54:54,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:54:54,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:54:54,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:54:54,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:54:54,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:54:54,706 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:54:54,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:54:54,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:54:54,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:54:54,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:54:54,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:54:54,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:54:54,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:54:54,710 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:54:54,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:54:54,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:54:54,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:54:54,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:54:54,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:54:54,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:54:54,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:54:54,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:54:54,716 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:54:54,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:54:54,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:54:54,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:54:54,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:54:54,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:54:54,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:54:54,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:54:54,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:54:54,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:54:54,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:54:54,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:54:54,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:54:54,718 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:54:54,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6a56bada7206875b5522c4732ed558727da026e7bf600ff2a0cdce747605d25 [2024-11-16 03:54:54,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:54:54,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:54:54,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:54:54,967 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:54:54,968 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:54:54,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label32.c [2024-11-16 03:54:56,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:54:56,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:54:56,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label32.c [2024-11-16 03:54:56,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6507d7d/166cf51af4b04b81aca838df8def941b/FLAG26e748961 [2024-11-16 03:54:56,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6507d7d/166cf51af4b04b81aca838df8def941b [2024-11-16 03:54:56,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:54:56,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:54:56,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:54:56,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:54:56,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:54:56,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:56" (1/1) ... [2024-11-16 03:54:56,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e25d565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:56, skipping insertion in model container [2024-11-16 03:54:56,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:54:56" (1/1) ... [2024-11-16 03:54:56,867 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:54:57,076 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/Problem12_label32.c[5470,5483] [2024-11-16 03:54:57,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:54:57,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:54:57,769 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/Problem12_label32.c[5470,5483] [2024-11-16 03:54:58,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:54:58,109 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:54:58,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58 WrapperNode [2024-11-16 03:54:58,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:54:58,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:54:58,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:54:58,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:54:58,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,379 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:54:58,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:54:58,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:54:58,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:54:58,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:54:58,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,434 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,577 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:54:58,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:54:58,769 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:54:58,769 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:54:58,769 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:54:58,770 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (1/1) ... [2024-11-16 03:54:58,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:54:58,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:54:58,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:54:58,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:54:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:54:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:54:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:54:58,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:54:58,893 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:54:58,895 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:55:02,086 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:55:02,088 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:55:02,088 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:55:02,253 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:55:02,253 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:55:02,283 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:55:02,283 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:55:02,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:02 BoogieIcfgContainer [2024-11-16 03:55:02,284 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:55:02,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:55:02,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:55:02,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:55:02,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:54:56" (1/3) ... [2024-11-16 03:55:02,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45443210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:02, skipping insertion in model container [2024-11-16 03:55:02,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:54:58" (2/3) ... [2024-11-16 03:55:02,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45443210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:02, skipping insertion in model container [2024-11-16 03:55:02,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:55:02" (3/3) ... [2024-11-16 03:55:02,294 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label32.c [2024-11-16 03:55:02,309 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:55:02,309 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:55:02,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:55:02,394 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;@49d864a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:55:02,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:55:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-16 03:55:02,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:02,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:02,416 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:02,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:02,421 INFO L85 PathProgramCache]: Analyzing trace with hash -119450244, now seen corresponding path program 1 times [2024-11-16 03:55:02,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:02,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696189810] [2024-11-16 03:55:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:55:02,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:02,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696189810] [2024-11-16 03:55:02,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696189810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:02,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:02,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:55:02,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274361943] [2024-11-16 03:55:02,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:02,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:02,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:02,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:02,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:02,761 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 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 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:05,682 INFO L93 Difference]: Finished difference Result 2394 states and 4635 transitions. [2024-11-16 03:55:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:05,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-11-16 03:55:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:05,711 INFO L225 Difference]: With dead ends: 2394 [2024-11-16 03:55:05,712 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:55:05,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:05,726 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 793 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:05,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 116 Invalid, 3264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:55:05,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:55:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:55:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.8640583554376657) internal successors, (2811), 1508 states have internal predecessors, (2811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2811 transitions. [2024-11-16 03:55:05,834 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2811 transitions. Word has length 45 [2024-11-16 03:55:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:05,835 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2811 transitions. [2024-11-16 03:55:05,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2811 transitions. [2024-11-16 03:55:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 03:55:05,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:05,840 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:05,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:55:05,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:05,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2137703966, now seen corresponding path program 1 times [2024-11-16 03:55:05,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:05,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473206109] [2024-11-16 03:55:05,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:05,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:55:06,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473206109] [2024-11-16 03:55:06,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473206109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:06,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:55:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222808970] [2024-11-16 03:55:06,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:06,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:06,003 INFO L87 Difference]: Start difference. First operand 1509 states and 2811 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:08,627 INFO L93 Difference]: Finished difference Result 4523 states and 8429 transitions. [2024-11-16 03:55:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 03:55:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:08,636 INFO L225 Difference]: With dead ends: 4523 [2024-11-16 03:55:08,636 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 03:55:08,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:08,639 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 927 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:08,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 357 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:55:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 03:55:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3013. [2024-11-16 03:55:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.650066401062417) internal successors, (4970), 3012 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4970 transitions. [2024-11-16 03:55:08,685 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4970 transitions. Word has length 111 [2024-11-16 03:55:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:08,687 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4970 transitions. [2024-11-16 03:55:08,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:08,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4970 transitions. [2024-11-16 03:55:08,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 03:55:08,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:08,690 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:08,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:55:08,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:08,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash 59333777, now seen corresponding path program 1 times [2024-11-16 03:55:08,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:08,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177447609] [2024-11-16 03:55:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:08,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:55:08,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:08,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177447609] [2024-11-16 03:55:08,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177447609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:08,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:08,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:08,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588233053] [2024-11-16 03:55:08,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:08,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:55:08,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:08,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:55:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:08,961 INFO L87 Difference]: Start difference. First operand 3013 states and 4970 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:11,326 INFO L93 Difference]: Finished difference Result 7566 states and 12135 transitions. [2024-11-16 03:55:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:55:11,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 03:55:11,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:11,338 INFO L225 Difference]: With dead ends: 7566 [2024-11-16 03:55:11,338 INFO L226 Difference]: Without dead ends: 4517 [2024-11-16 03:55:11,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:11,342 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 703 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:11,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 610 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:55:11,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2024-11-16 03:55:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 4517. [2024-11-16 03:55:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4516 states have (on average 1.4506200177147919) internal successors, (6551), 4516 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6551 transitions. [2024-11-16 03:55:11,409 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6551 transitions. Word has length 117 [2024-11-16 03:55:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:11,409 INFO L471 AbstractCegarLoop]: Abstraction has 4517 states and 6551 transitions. [2024-11-16 03:55:11,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:11,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6551 transitions. [2024-11-16 03:55:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-16 03:55:11,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:11,412 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:11,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:55:11,412 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:11,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash 499716965, now seen corresponding path program 1 times [2024-11-16 03:55:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014361223] [2024-11-16 03:55:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:11,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:11,679 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:55:11,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014361223] [2024-11-16 03:55:11,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014361223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:11,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:11,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274066780] [2024-11-16 03:55:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:11,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:55:11,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:11,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:55:11,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:11,682 INFO L87 Difference]: Start difference. First operand 4517 states and 6551 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:14,857 INFO L93 Difference]: Finished difference Result 14305 states and 20482 transitions. [2024-11-16 03:55:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:55:14,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-16 03:55:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:14,882 INFO L225 Difference]: With dead ends: 14305 [2024-11-16 03:55:14,883 INFO L226 Difference]: Without dead ends: 9790 [2024-11-16 03:55:14,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:14,890 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 2135 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 3777 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 3777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:14,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 387 Invalid, 4619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 3777 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:55:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2024-11-16 03:55:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 9781. [2024-11-16 03:55:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 1.3649284253578733) internal successors, (13349), 9780 states have internal predecessors, (13349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:15,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 13349 transitions. [2024-11-16 03:55:15,026 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 13349 transitions. Word has length 162 [2024-11-16 03:55:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:15,026 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 13349 transitions. [2024-11-16 03:55:15,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 13349 transitions. [2024-11-16 03:55:15,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 03:55:15,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:15,029 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:15,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:55:15,030 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:15,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:15,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1537643094, now seen corresponding path program 1 times [2024-11-16 03:55:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540966778] [2024-11-16 03:55:15,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:55:15,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:15,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540966778] [2024-11-16 03:55:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540966778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:55:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718651885] [2024-11-16 03:55:15,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:15,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:55:15,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:55:15,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:55:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:15,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:55:15,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:55:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-16 03:55:15,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:55:15,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718651885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:15,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:55:15,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:55:15,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873772979] [2024-11-16 03:55:15,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:15,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:15,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:15,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:15,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:15,642 INFO L87 Difference]: Start difference. First operand 9781 states and 13349 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:17,751 INFO L93 Difference]: Finished difference Result 27080 states and 37627 transitions. [2024-11-16 03:55:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 191 [2024-11-16 03:55:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:17,789 INFO L225 Difference]: With dead ends: 27080 [2024-11-16 03:55:17,789 INFO L226 Difference]: Without dead ends: 17301 [2024-11-16 03:55:17,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:55:17,802 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 660 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:17,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 379 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:55:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17301 states. [2024-11-16 03:55:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17301 to 14293. [2024-11-16 03:55:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14293 states, 14292 states have (on average 1.4211446963336132) internal successors, (20311), 14292 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14293 states to 14293 states and 20311 transitions. [2024-11-16 03:55:18,094 INFO L78 Accepts]: Start accepts. Automaton has 14293 states and 20311 transitions. Word has length 191 [2024-11-16 03:55:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:18,095 INFO L471 AbstractCegarLoop]: Abstraction has 14293 states and 20311 transitions. [2024-11-16 03:55:18,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 14293 states and 20311 transitions. [2024-11-16 03:55:18,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-16 03:55:18,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:18,097 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:55:18,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:55:18,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:18,298 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:18,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:18,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1508728075, now seen corresponding path program 1 times [2024-11-16 03:55:18,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:18,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390375895] [2024-11-16 03:55:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:18,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 03:55:18,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:18,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390375895] [2024-11-16 03:55:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390375895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:18,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:18,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016228722] [2024-11-16 03:55:18,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:18,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:55:18,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:18,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:55:18,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:18,540 INFO L87 Difference]: Start difference. First operand 14293 states and 20311 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:21,012 INFO L93 Difference]: Finished difference Result 28625 states and 40660 transitions. [2024-11-16 03:55:21,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:55:21,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 259 [2024-11-16 03:55:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:21,039 INFO L225 Difference]: With dead ends: 28625 [2024-11-16 03:55:21,039 INFO L226 Difference]: Without dead ends: 14296 [2024-11-16 03:55:21,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:21,050 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 851 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3442 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 3442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:21,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 409 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 3442 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:55:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14296 states. [2024-11-16 03:55:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14296 to 14293. [2024-11-16 03:55:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14293 states, 14292 states have (on average 1.389238734956619) internal successors, (19855), 14292 states have internal predecessors, (19855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14293 states to 14293 states and 19855 transitions. [2024-11-16 03:55:21,194 INFO L78 Accepts]: Start accepts. Automaton has 14293 states and 19855 transitions. Word has length 259 [2024-11-16 03:55:21,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:21,194 INFO L471 AbstractCegarLoop]: Abstraction has 14293 states and 19855 transitions. [2024-11-16 03:55:21,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 14293 states and 19855 transitions. [2024-11-16 03:55:21,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-16 03:55:21,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:21,198 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:21,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:55:21,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:21,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:21,199 INFO L85 PathProgramCache]: Analyzing trace with hash 931413452, now seen corresponding path program 1 times [2024-11-16 03:55:21,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:21,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624428904] [2024-11-16 03:55:21,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:21,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-16 03:55:21,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:21,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624428904] [2024-11-16 03:55:21,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624428904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:21,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:21,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:55:21,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753559119] [2024-11-16 03:55:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:21,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:21,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:21,335 INFO L87 Difference]: Start difference. First operand 14293 states and 19855 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:23,656 INFO L93 Difference]: Finished difference Result 36104 states and 50067 transitions. [2024-11-16 03:55:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2024-11-16 03:55:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:23,687 INFO L225 Difference]: With dead ends: 36104 [2024-11-16 03:55:23,687 INFO L226 Difference]: Without dead ends: 21813 [2024-11-16 03:55:23,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:23,701 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 695 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:23,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 425 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [782 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:55:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21813 states. [2024-11-16 03:55:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21813 to 18805. [2024-11-16 03:55:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18805 states, 18804 states have (on average 1.2276111465645607) internal successors, (23084), 18804 states have internal predecessors, (23084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18805 states to 18805 states and 23084 transitions. [2024-11-16 03:55:23,954 INFO L78 Accepts]: Start accepts. Automaton has 18805 states and 23084 transitions. Word has length 281 [2024-11-16 03:55:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:23,955 INFO L471 AbstractCegarLoop]: Abstraction has 18805 states and 23084 transitions. [2024-11-16 03:55:23,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 18805 states and 23084 transitions. [2024-11-16 03:55:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-16 03:55:23,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:23,961 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:23,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:55:23,962 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:23,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash -718028107, now seen corresponding path program 1 times [2024-11-16 03:55:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:23,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469949462] [2024-11-16 03:55:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:23,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:55:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469949462] [2024-11-16 03:55:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469949462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091199527] [2024-11-16 03:55:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:24,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:24,156 INFO L87 Difference]: Start difference. First operand 18805 states and 23084 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:26,300 INFO L93 Difference]: Finished difference Result 45128 states and 56525 transitions. [2024-11-16 03:55:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 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 361 [2024-11-16 03:55:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:26,331 INFO L225 Difference]: With dead ends: 45128 [2024-11-16 03:55:26,331 INFO L226 Difference]: Without dead ends: 26325 [2024-11-16 03:55:26,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:26,347 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 766 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:26,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 238 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:55:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26325 states. [2024-11-16 03:55:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26325 to 26325. [2024-11-16 03:55:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26325 states, 26324 states have (on average 1.2194575292508738) internal successors, (32101), 26324 states have internal predecessors, (32101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26325 states to 26325 states and 32101 transitions. [2024-11-16 03:55:26,611 INFO L78 Accepts]: Start accepts. Automaton has 26325 states and 32101 transitions. Word has length 361 [2024-11-16 03:55:26,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:26,612 INFO L471 AbstractCegarLoop]: Abstraction has 26325 states and 32101 transitions. [2024-11-16 03:55:26,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 26325 states and 32101 transitions. [2024-11-16 03:55:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-16 03:55:26,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:26,618 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:26,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:55:26,618 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:26,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash -798724252, now seen corresponding path program 1 times [2024-11-16 03:55:26,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:26,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486962225] [2024-11-16 03:55:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:26,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-16 03:55:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:26,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486962225] [2024-11-16 03:55:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486962225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:26,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:26,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:26,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922204021] [2024-11-16 03:55:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:26,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:26,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:26,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:26,785 INFO L87 Difference]: Start difference. First operand 26325 states and 32101 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:28,956 INFO L93 Difference]: Finished difference Result 66184 states and 80198 transitions. [2024-11-16 03:55:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2024-11-16 03:55:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:28,997 INFO L225 Difference]: With dead ends: 66184 [2024-11-16 03:55:28,997 INFO L226 Difference]: Without dead ends: 39861 [2024-11-16 03:55:29,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:29,011 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 740 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:29,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1339 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:55:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39861 states. [2024-11-16 03:55:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39861 to 38357. [2024-11-16 03:55:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38357 states, 38356 states have (on average 1.179241839607884) internal successors, (45231), 38356 states have internal predecessors, (45231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38357 states to 38357 states and 45231 transitions. [2024-11-16 03:55:29,366 INFO L78 Accepts]: Start accepts. Automaton has 38357 states and 45231 transitions. Word has length 376 [2024-11-16 03:55:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:29,367 INFO L471 AbstractCegarLoop]: Abstraction has 38357 states and 45231 transitions. [2024-11-16 03:55:29,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 38357 states and 45231 transitions. [2024-11-16 03:55:29,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-16 03:55:29,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:29,376 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:29,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:55:29,377 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:29,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:29,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1296692584, now seen corresponding path program 1 times [2024-11-16 03:55:29,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:29,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223858415] [2024-11-16 03:55:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:29,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-16 03:55:29,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223858415] [2024-11-16 03:55:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223858415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:29,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:29,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:29,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617112251] [2024-11-16 03:55:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:29,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:29,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:29,594 INFO L87 Difference]: Start difference. First operand 38357 states and 45231 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:31,934 INFO L93 Difference]: Finished difference Result 94008 states and 110934 transitions. [2024-11-16 03:55:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 466 [2024-11-16 03:55:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:31,999 INFO L225 Difference]: With dead ends: 94008 [2024-11-16 03:55:31,999 INFO L226 Difference]: Without dead ends: 55653 [2024-11-16 03:55:32,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:32,027 INFO L432 NwaCegarLoop]: 1278 mSDtfsCounter, 639 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:32,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1288 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:55:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55653 states. [2024-11-16 03:55:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55653 to 54901. [2024-11-16 03:55:32,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54901 states, 54900 states have (on average 1.1691621129326046) internal successors, (64187), 54900 states have internal predecessors, (64187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54901 states to 54901 states and 64187 transitions. [2024-11-16 03:55:32,738 INFO L78 Accepts]: Start accepts. Automaton has 54901 states and 64187 transitions. Word has length 466 [2024-11-16 03:55:32,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:32,738 INFO L471 AbstractCegarLoop]: Abstraction has 54901 states and 64187 transitions. [2024-11-16 03:55:32,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 54901 states and 64187 transitions. [2024-11-16 03:55:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-11-16 03:55:32,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:32,751 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:32,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:55:32,752 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:32,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:32,752 INFO L85 PathProgramCache]: Analyzing trace with hash -603962274, now seen corresponding path program 1 times [2024-11-16 03:55:32,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:32,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534001914] [2024-11-16 03:55:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:32,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:55:33,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:33,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534001914] [2024-11-16 03:55:33,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534001914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:33,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:33,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:33,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872208760] [2024-11-16 03:55:33,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:33,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:33,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:33,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:33,049 INFO L87 Difference]: Start difference. First operand 54901 states and 64187 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:35,421 INFO L93 Difference]: Finished difference Result 113560 states and 132219 transitions. [2024-11-16 03:55:35,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 470 [2024-11-16 03:55:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:35,480 INFO L225 Difference]: With dead ends: 113560 [2024-11-16 03:55:35,481 INFO L226 Difference]: Without dead ends: 54149 [2024-11-16 03:55:35,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:35,501 INFO L432 NwaCegarLoop]: 1221 mSDtfsCounter, 725 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:35,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 1231 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:55:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54149 states. [2024-11-16 03:55:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54149 to 48133. [2024-11-16 03:55:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48133 states, 48132 states have (on average 1.1180711377046455) internal successors, (53815), 48132 states have internal predecessors, (53815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:36,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48133 states to 48133 states and 53815 transitions. [2024-11-16 03:55:36,079 INFO L78 Accepts]: Start accepts. Automaton has 48133 states and 53815 transitions. Word has length 470 [2024-11-16 03:55:36,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:36,080 INFO L471 AbstractCegarLoop]: Abstraction has 48133 states and 53815 transitions. [2024-11-16 03:55:36,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 48133 states and 53815 transitions. [2024-11-16 03:55:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2024-11-16 03:55:36,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:36,091 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:55:36,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:55:36,092 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:36,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1946659199, now seen corresponding path program 1 times [2024-11-16 03:55:36,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:36,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136078172] [2024-11-16 03:55:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:36,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 627 proven. 16 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-16 03:55:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:36,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136078172] [2024-11-16 03:55:36,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136078172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:55:36,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925839666] [2024-11-16 03:55:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:36,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:55:36,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:55:36,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:55:36,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:55:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:37,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:55:37,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:55:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-16 03:55:37,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:55:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925839666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:37,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:55:37,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:55:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936687196] [2024-11-16 03:55:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:37,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:37,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:55:37,214 INFO L87 Difference]: Start difference. First operand 48133 states and 53815 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:39,705 INFO L93 Difference]: Finished difference Result 109800 states and 124074 transitions. [2024-11-16 03:55:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 536 [2024-11-16 03:55:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:39,781 INFO L225 Difference]: With dead ends: 109800 [2024-11-16 03:55:39,781 INFO L226 Difference]: Without dead ends: 62421 [2024-11-16 03:55:39,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:55:39,817 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 654 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:39,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1379 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:55:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62421 states. [2024-11-16 03:55:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62421 to 60165. [2024-11-16 03:55:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60165 states, 60164 states have (on average 1.1047802672694635) internal successors, (66468), 60164 states have internal predecessors, (66468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60165 states to 60165 states and 66468 transitions. [2024-11-16 03:55:40,519 INFO L78 Accepts]: Start accepts. Automaton has 60165 states and 66468 transitions. Word has length 536 [2024-11-16 03:55:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:40,520 INFO L471 AbstractCegarLoop]: Abstraction has 60165 states and 66468 transitions. [2024-11-16 03:55:40,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 60165 states and 66468 transitions. [2024-11-16 03:55:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-16 03:55:40,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:40,537 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:40,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:55:40,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 03:55:40,739 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:40,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash 607268724, now seen corresponding path program 1 times [2024-11-16 03:55:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:40,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023978699] [2024-11-16 03:55:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-16 03:55:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023978699] [2024-11-16 03:55:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023978699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758016257] [2024-11-16 03:55:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:55:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:55:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:41,447 INFO L87 Difference]: Start difference. First operand 60165 states and 66468 transitions. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:45,209 INFO L93 Difference]: Finished difference Result 181240 states and 201525 transitions. [2024-11-16 03:55:45,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:55:45,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 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 616 [2024-11-16 03:55:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:45,352 INFO L225 Difference]: With dead ends: 181240 [2024-11-16 03:55:45,352 INFO L226 Difference]: Without dead ends: 121829 [2024-11-16 03:55:45,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:55:45,397 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 1614 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4902 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 4902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:45,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 40 Invalid, 5454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 4902 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 03:55:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121829 states. [2024-11-16 03:55:46,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121829 to 121077. [2024-11-16 03:55:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121077 states, 121076 states have (on average 1.1082625788760778) internal successors, (134184), 121076 states have internal predecessors, (134184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121077 states to 121077 states and 134184 transitions. [2024-11-16 03:55:47,108 INFO L78 Accepts]: Start accepts. Automaton has 121077 states and 134184 transitions. Word has length 616 [2024-11-16 03:55:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:47,108 INFO L471 AbstractCegarLoop]: Abstraction has 121077 states and 134184 transitions. [2024-11-16 03:55:47,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 121077 states and 134184 transitions. [2024-11-16 03:55:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-16 03:55:47,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:47,129 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:55:47,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:55:47,130 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:47,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:47,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2088474863, now seen corresponding path program 1 times [2024-11-16 03:55:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812604270] [2024-11-16 03:55:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-16 03:55:47,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812604270] [2024-11-16 03:55:47,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812604270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:47,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:47,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:47,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116888937] [2024-11-16 03:55:47,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:47,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:47,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:47,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:47,559 INFO L87 Difference]: Start difference. First operand 121077 states and 134184 transitions. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:50,293 INFO L93 Difference]: Finished difference Result 244408 states and 270658 transitions. [2024-11-16 03:55:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:50,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 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 624 [2024-11-16 03:55:50,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:50,421 INFO L225 Difference]: With dead ends: 244408 [2024-11-16 03:55:50,421 INFO L226 Difference]: Without dead ends: 124085 [2024-11-16 03:55:50,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:50,454 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 736 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:50,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 199 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:55:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124085 states. [2024-11-16 03:55:51,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124085 to 121077. [2024-11-16 03:55:51,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121077 states, 121076 states have (on average 1.1015643067164425) internal successors, (133373), 121076 states have internal predecessors, (133373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121077 states to 121077 states and 133373 transitions. [2024-11-16 03:55:52,090 INFO L78 Accepts]: Start accepts. Automaton has 121077 states and 133373 transitions. Word has length 624 [2024-11-16 03:55:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:52,090 INFO L471 AbstractCegarLoop]: Abstraction has 121077 states and 133373 transitions. [2024-11-16 03:55:52,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 121077 states and 133373 transitions. [2024-11-16 03:55:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2024-11-16 03:55:52,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:52,110 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:55:52,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:55:52,110 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:52,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash 446614770, now seen corresponding path program 1 times [2024-11-16 03:55:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:52,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945612445] [2024-11-16 03:55:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-16 03:55:52,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:52,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945612445] [2024-11-16 03:55:52,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945612445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:52,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:52,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:52,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246843060] [2024-11-16 03:55:52,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:52,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:52,544 INFO L87 Difference]: Start difference. First operand 121077 states and 133373 transitions. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:55:55,527 INFO L93 Difference]: Finished difference Result 319608 states and 351472 transitions. [2024-11-16 03:55:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:55:55,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 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 662 [2024-11-16 03:55:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:55:55,787 INFO L225 Difference]: With dead ends: 319608 [2024-11-16 03:55:55,788 INFO L226 Difference]: Without dead ends: 199285 [2024-11-16 03:55:55,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:55,839 INFO L432 NwaCegarLoop]: 1323 mSDtfsCounter, 477 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:55:55,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1331 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:55:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199285 states. [2024-11-16 03:55:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199285 to 178229. [2024-11-16 03:55:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178229 states, 178228 states have (on average 1.0838420450209845) internal successors, (193171), 178228 states have internal predecessors, (193171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178229 states to 178229 states and 193171 transitions. [2024-11-16 03:55:58,215 INFO L78 Accepts]: Start accepts. Automaton has 178229 states and 193171 transitions. Word has length 662 [2024-11-16 03:55:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:55:58,215 INFO L471 AbstractCegarLoop]: Abstraction has 178229 states and 193171 transitions. [2024-11-16 03:55:58,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:55:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 178229 states and 193171 transitions. [2024-11-16 03:55:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-16 03:55:58,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:55:58,250 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:55:58,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:55:58,251 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:55:58,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:55:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -38299929, now seen corresponding path program 1 times [2024-11-16 03:55:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:55:58,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060876025] [2024-11-16 03:55:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:55:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:55:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:55:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-16 03:55:58,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:55:58,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060876025] [2024-11-16 03:55:58,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060876025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:55:58,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:55:58,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:55:58,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405064455] [2024-11-16 03:55:58,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:55:58,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:55:58,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:55:58,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:55:58,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:55:58,929 INFO L87 Difference]: Start difference. First operand 178229 states and 193171 transitions. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:01,791 INFO L93 Difference]: Finished difference Result 355704 states and 385583 transitions. [2024-11-16 03:56:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:56:01,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 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 778 [2024-11-16 03:56:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:01,994 INFO L225 Difference]: With dead ends: 355704 [2024-11-16 03:56:01,994 INFO L226 Difference]: Without dead ends: 178229 [2024-11-16 03:56:02,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:56:02,072 INFO L432 NwaCegarLoop]: 1257 mSDtfsCounter, 405 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:02,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1267 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 03:56:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178229 states. [2024-11-16 03:56:03,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178229 to 173717. [2024-11-16 03:56:03,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173717 states, 173716 states have (on average 1.0592173432499021) internal successors, (184003), 173716 states have internal predecessors, (184003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173717 states to 173717 states and 184003 transitions. [2024-11-16 03:56:04,490 INFO L78 Accepts]: Start accepts. Automaton has 173717 states and 184003 transitions. Word has length 778 [2024-11-16 03:56:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:04,491 INFO L471 AbstractCegarLoop]: Abstraction has 173717 states and 184003 transitions. [2024-11-16 03:56:04,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 173717 states and 184003 transitions. [2024-11-16 03:56:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2024-11-16 03:56:04,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:04,539 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:04,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:56:04,539 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:04,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:04,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1772660232, now seen corresponding path program 1 times [2024-11-16 03:56:04,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:04,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208185308] [2024-11-16 03:56:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:04,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-16 03:56:05,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:05,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208185308] [2024-11-16 03:56:05,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208185308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:56:05,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:56:05,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:56:05,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233760677] [2024-11-16 03:56:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:56:05,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:56:05,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:56:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:56:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:05,689 INFO L87 Difference]: Start difference. First operand 173717 states and 184003 transitions. Second operand has 4 states, 4 states have (on average 137.0) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:56:09,968 INFO L93 Difference]: Finished difference Result 343672 states and 365418 transitions. [2024-11-16 03:56:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:56:09,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 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 809 [2024-11-16 03:56:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:56:10,224 INFO L225 Difference]: With dead ends: 343672 [2024-11-16 03:56:10,224 INFO L226 Difference]: Without dead ends: 200037 [2024-11-16 03:56:10,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:56:10,292 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 1443 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4729 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 5233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 4729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:56:10,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 65 Invalid, 5233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 4729 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 03:56:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200037 states. [2024-11-16 03:56:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200037 to 175973. [2024-11-16 03:56:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175973 states, 175972 states have (on average 1.0590434841906666) internal successors, (186362), 175972 states have internal predecessors, (186362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175973 states to 175973 states and 186362 transitions. [2024-11-16 03:56:12,524 INFO L78 Accepts]: Start accepts. Automaton has 175973 states and 186362 transitions. Word has length 809 [2024-11-16 03:56:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:56:12,525 INFO L471 AbstractCegarLoop]: Abstraction has 175973 states and 186362 transitions. [2024-11-16 03:56:12,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:56:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 175973 states and 186362 transitions. [2024-11-16 03:56:12,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2024-11-16 03:56:12,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:56:12,577 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:56:12,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 03:56:12,577 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:56:12,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:56:12,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1053360780, now seen corresponding path program 1 times [2024-11-16 03:56:12,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:56:12,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547509061] [2024-11-16 03:56:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:12,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:56:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 1095 proven. 16 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-16 03:56:13,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:56:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547509061] [2024-11-16 03:56:13,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547509061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:56:13,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932599035] [2024-11-16 03:56:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:56:13,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:56:13,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:56:13,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:56:13,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:56:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:56:14,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 03:56:14,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:56:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 992 proven. 110 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-16 03:56:15,827 INFO L311 TraceCheckSpWp]: Computing backward predicates...