./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_label49.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08af54cde19107da336de06530b4d4e9301f950145de9f25438005f74799fda5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 16:55:58,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 16:55:58,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 16:55:58,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 16:55:58,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 16:55:58,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 16:55:58,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 16:55:58,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 16:55:58,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 16:55:58,485 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 16:55:58,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 16:55:58,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 16:55:58,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 16:55:58,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 16:55:58,487 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 16:55:58,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 16:55:58,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 16:55:58,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 16:55:58,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 16:55:58,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 16:55:58,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 16:55:58,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 16:55:58,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 16:55:58,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 16:55:58,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 16:55:58,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 16:55:58,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:55:58,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 16:55:58,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 16:55:58,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 16:55:58,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 16:55:58,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08af54cde19107da336de06530b4d4e9301f950145de9f25438005f74799fda5 [2024-11-11 16:55:58,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 16:55:58,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 16:55:58,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 16:55:58,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 16:55:58,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 16:55:58,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label49.c [2024-11-11 16:55:59,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 16:56:00,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 16:56:00,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c [2024-11-11 16:56:00,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4972325b6/9dbcc97aea3141b0b558cd76a9574dcc/FLAG594a2f93d [2024-11-11 16:56:00,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4972325b6/9dbcc97aea3141b0b558cd76a9574dcc [2024-11-11 16:56:00,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 16:56:00,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 16:56:00,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 16:56:00,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 16:56:00,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 16:56:00,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:56:00" (1/1) ... [2024-11-11 16:56:00,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f2ba91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:00, skipping insertion in model container [2024-11-11 16:56:00,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:56:00" (1/1) ... [2024-11-11 16:56:00,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 16:56:00,658 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_label49.c[5366,5379] [2024-11-11 16:56:01,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:56:01,143 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 16:56:01,162 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_label49.c[5366,5379] [2024-11-11 16:56:01,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:56:01,501 INFO L204 MainTranslator]: Completed translation [2024-11-11 16:56:01,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01 WrapperNode [2024-11-11 16:56:01,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 16:56:01,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 16:56:01,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 16:56:01,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 16:56:01,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:01,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:01,820 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-11 16:56:01,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 16:56:01,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 16:56:01,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 16:56:01,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 16:56:01,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:01,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:01,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,033 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]. [2024-11-11 16:56:02,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 16:56:02,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 16:56:02,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 16:56:02,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 16:56:02,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (1/1) ... [2024-11-11 16:56:02,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:56:02,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:56:02,248 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) [2024-11-11 16:56:02,249 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 [2024-11-11 16:56:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 16:56:02,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 16:56:02,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 16:56:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 16:56:02,376 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 16:56:02,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 16:56:05,477 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-11 16:56:05,477 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 16:56:05,501 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 16:56:05,501 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 16:56:05,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:56:05 BoogieIcfgContainer [2024-11-11 16:56:05,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 16:56:05,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 16:56:05,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 16:56:05,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 16:56:05,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 04:56:00" (1/3) ... [2024-11-11 16:56:05,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cd9f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:56:05, skipping insertion in model container [2024-11-11 16:56:05,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:56:01" (2/3) ... [2024-11-11 16:56:05,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cd9f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:56:05, skipping insertion in model container [2024-11-11 16:56:05,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:56:05" (3/3) ... [2024-11-11 16:56:05,513 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label49.c [2024-11-11 16:56:05,527 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 16:56:05,527 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 16:56:05,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 16:56:05,611 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;@c9a3640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 16:56:05,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 16:56:05,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:05,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-11 16:56:05,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:05,624 INFO L218 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] [2024-11-11 16:56:05,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:05,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:05,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2024-11-11 16:56:05,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:05,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716067211] [2024-11-11 16:56:05,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:05,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:56:06,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:06,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716067211] [2024-11-11 16:56:06,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716067211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:06,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:06,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:06,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926877341] [2024-11-11 16:56:06,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:06,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:56:06,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:56:06,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:56:06,039 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:10,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:10,654 INFO L93 Difference]: Finished difference Result 3155 states and 6150 transitions. [2024-11-11 16:56:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 16:56:10,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-11 16:56:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:10,676 INFO L225 Difference]: With dead ends: 3155 [2024-11-11 16:56:10,676 INFO L226 Difference]: Without dead ends: 2265 [2024-11-11 16:56:10,680 INFO L434 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 [2024-11-11 16:56:10,683 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 2412 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 1719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:10,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 234 Invalid, 5453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1719 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-11 16:56:10,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2024-11-11 16:56:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2257. [2024-11-11 16:56:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2256 states have (on average 1.5350177304964538) internal successors, (3463), 2256 states have internal predecessors, (3463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3463 transitions. [2024-11-11 16:56:10,817 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3463 transitions. Word has length 42 [2024-11-11 16:56:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:10,818 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3463 transitions. [2024-11-11 16:56:10,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3463 transitions. [2024-11-11 16:56:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-11 16:56:10,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:10,823 INFO L218 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:10,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 16:56:10,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:10,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash -471596609, now seen corresponding path program 1 times [2024-11-11 16:56:10,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708951509] [2024-11-11 16:56:10,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 16:56:11,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:11,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708951509] [2024-11-11 16:56:11,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708951509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:11,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:11,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:11,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787086956] [2024-11-11 16:56:11,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:11,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:56:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:11,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:56:11,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:56:11,268 INFO L87 Difference]: Start difference. First operand 2257 states and 3463 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:14,320 INFO L93 Difference]: Finished difference Result 6053 states and 9665 transitions. [2024-11-11 16:56:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:56:14,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 182 [2024-11-11 16:56:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:14,330 INFO L225 Difference]: With dead ends: 6053 [2024-11-11 16:56:14,330 INFO L226 Difference]: Without dead ends: 3761 [2024-11-11 16:56:14,331 INFO L434 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 [2024-11-11 16:56:14,332 INFO L435 NwaCegarLoop]: 695 mSDtfsCounter, 704 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:14,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 710 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-11 16:56:14,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2024-11-11 16:56:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 3759. [2024-11-11 16:56:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3759 states, 3758 states have (on average 1.3411389036721661) internal successors, (5040), 3758 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 5040 transitions. [2024-11-11 16:56:14,373 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 5040 transitions. Word has length 182 [2024-11-11 16:56:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:14,373 INFO L471 AbstractCegarLoop]: Abstraction has 3759 states and 5040 transitions. [2024-11-11 16:56:14,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:14,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 5040 transitions. [2024-11-11 16:56:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-11 16:56:14,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:14,380 INFO L218 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:56:14,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 16:56:14,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:14,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -782772530, now seen corresponding path program 1 times [2024-11-11 16:56:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:14,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480316377] [2024-11-11 16:56:14,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-11 16:56:14,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480316377] [2024-11-11 16:56:14,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480316377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:14,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:14,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:56:14,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996238966] [2024-11-11 16:56:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:14,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:14,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:14,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:14,587 INFO L87 Difference]: Start difference. First operand 3759 states and 5040 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:16,682 INFO L93 Difference]: Finished difference Result 10520 states and 14359 transitions. [2024-11-11 16:56:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 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 252 [2024-11-11 16:56:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:16,697 INFO L225 Difference]: With dead ends: 10520 [2024-11-11 16:56:16,698 INFO L226 Difference]: Without dead ends: 6763 [2024-11-11 16:56:16,701 INFO L434 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 [2024-11-11 16:56:16,704 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:16,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 486 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 16:56:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2024-11-11 16:56:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6763. [2024-11-11 16:56:16,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 6762 states have (on average 1.251700680272109) internal successors, (8464), 6762 states have internal predecessors, (8464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 8464 transitions. [2024-11-11 16:56:16,780 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 8464 transitions. Word has length 252 [2024-11-11 16:56:16,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:16,782 INFO L471 AbstractCegarLoop]: Abstraction has 6763 states and 8464 transitions. [2024-11-11 16:56:16,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 8464 transitions. [2024-11-11 16:56:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-11 16:56:16,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:16,788 INFO L218 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:56:16,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 16:56:16,788 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:16,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash -323678199, now seen corresponding path program 1 times [2024-11-11 16:56:16,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:16,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921232613] [2024-11-11 16:56:16,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:16,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 79 proven. 54 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-11 16:56:17,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:17,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921232613] [2024-11-11 16:56:17,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921232613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:56:17,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108117021] [2024-11-11 16:56:17,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:17,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:56:17,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:56:17,119 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) [2024-11-11 16:56:17,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 16:56:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:17,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:56:17,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:56:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:56:17,348 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:56:17,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108117021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:17,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:56:17,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-11 16:56:17,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571095560] [2024-11-11 16:56:17,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:17,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:17,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:17,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:56:17,353 INFO L87 Difference]: Start difference. First operand 6763 states and 8464 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:19,553 INFO L93 Difference]: Finished difference Result 16528 states and 21456 transitions. [2024-11-11 16:56:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 265 [2024-11-11 16:56:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:19,578 INFO L225 Difference]: With dead ends: 16528 [2024-11-11 16:56:19,579 INFO L226 Difference]: Without dead ends: 9767 [2024-11-11 16:56:19,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:56:19,590 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 908 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:19,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 309 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 16:56:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-11 16:56:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-11 16:56:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.2463649395863199) internal successors, (12172), 9766 states have internal predecessors, (12172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12172 transitions. [2024-11-11 16:56:19,730 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12172 transitions. Word has length 265 [2024-11-11 16:56:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:19,730 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12172 transitions. [2024-11-11 16:56:19,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12172 transitions. [2024-11-11 16:56:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-11 16:56:19,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:19,733 INFO L218 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:56:19,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 16:56:19,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:56:19,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:19,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:19,934 INFO L85 PathProgramCache]: Analyzing trace with hash 599792067, now seen corresponding path program 1 times [2024-11-11 16:56:19,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:19,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705440385] [2024-11-11 16:56:19,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:19,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-11 16:56:20,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705440385] [2024-11-11 16:56:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705440385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:20,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:20,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:20,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980684919] [2024-11-11 16:56:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:20,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:20,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:20,119 INFO L87 Difference]: Start difference. First operand 9767 states and 12172 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:22,339 INFO L93 Difference]: Finished difference Result 23287 states and 29350 transitions. [2024-11-11 16:56:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:22,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 282 [2024-11-11 16:56:22,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:22,363 INFO L225 Difference]: With dead ends: 23287 [2024-11-11 16:56:22,364 INFO L226 Difference]: Without dead ends: 13522 [2024-11-11 16:56:22,371 INFO L434 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 [2024-11-11 16:56:22,372 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 733 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:22,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1216 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 16:56:22,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13522 states. [2024-11-11 16:56:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13522 to 13522. [2024-11-11 16:56:22,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13522 states, 13521 states have (on average 1.174395384956734) internal successors, (15879), 13521 states have internal predecessors, (15879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13522 states to 13522 states and 15879 transitions. [2024-11-11 16:56:22,509 INFO L78 Accepts]: Start accepts. Automaton has 13522 states and 15879 transitions. Word has length 282 [2024-11-11 16:56:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:22,509 INFO L471 AbstractCegarLoop]: Abstraction has 13522 states and 15879 transitions. [2024-11-11 16:56:22,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 13522 states and 15879 transitions. [2024-11-11 16:56:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-11 16:56:22,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:22,513 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:22,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 16:56:22,513 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:22,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1891121198, now seen corresponding path program 1 times [2024-11-11 16:56:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148813634] [2024-11-11 16:56:22,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 16:56:22,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148813634] [2024-11-11 16:56:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148813634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:22,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:22,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:22,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702139970] [2024-11-11 16:56:22,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:22,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:22,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:22,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:22,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:22,752 INFO L87 Difference]: Start difference. First operand 13522 states and 15879 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:24,999 INFO L93 Difference]: Finished difference Result 37556 states and 44585 transitions. [2024-11-11 16:56:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:25,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 369 [2024-11-11 16:56:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:25,034 INFO L225 Difference]: With dead ends: 37556 [2024-11-11 16:56:25,035 INFO L226 Difference]: Without dead ends: 24036 [2024-11-11 16:56:25,046 INFO L434 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 [2024-11-11 16:56:25,047 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 640 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:25,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1222 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 16:56:25,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24036 states. [2024-11-11 16:56:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24036 to 24036. [2024-11-11 16:56:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24036 states, 24035 states have (on average 1.1628458498023715) internal successors, (27949), 24035 states have internal predecessors, (27949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24036 states to 24036 states and 27949 transitions. [2024-11-11 16:56:25,264 INFO L78 Accepts]: Start accepts. Automaton has 24036 states and 27949 transitions. Word has length 369 [2024-11-11 16:56:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:25,264 INFO L471 AbstractCegarLoop]: Abstraction has 24036 states and 27949 transitions. [2024-11-11 16:56:25,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 24036 states and 27949 transitions. [2024-11-11 16:56:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-11 16:56:25,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:25,270 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:25,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 16:56:25,270 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:25,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:25,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1037957688, now seen corresponding path program 1 times [2024-11-11 16:56:25,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:25,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751552752] [2024-11-11 16:56:25,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-11 16:56:25,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:25,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751552752] [2024-11-11 16:56:25,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751552752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:25,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:25,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:25,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023379900] [2024-11-11 16:56:25,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:25,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:25,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:25,692 INFO L87 Difference]: Start difference. First operand 24036 states and 27949 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) [2024-11-11 16:56:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:27,694 INFO L93 Difference]: Finished difference Result 54829 states and 63465 transitions. [2024-11-11 16:56:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:27,694 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 373 [2024-11-11 16:56:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:27,732 INFO L225 Difference]: With dead ends: 54829 [2024-11-11 16:56:27,733 INFO L226 Difference]: Without dead ends: 30795 [2024-11-11 16:56:27,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:27,757 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 798 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:27,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 969 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 16:56:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30795 states. [2024-11-11 16:56:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30795 to 27791. [2024-11-11 16:56:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27791 states, 27790 states have (on average 1.1417416336811803) internal successors, (31729), 27790 states have internal predecessors, (31729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27791 states to 27791 states and 31729 transitions. [2024-11-11 16:56:28,000 INFO L78 Accepts]: Start accepts. Automaton has 27791 states and 31729 transitions. Word has length 373 [2024-11-11 16:56:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:28,000 INFO L471 AbstractCegarLoop]: Abstraction has 27791 states and 31729 transitions. [2024-11-11 16:56:28,001 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) [2024-11-11 16:56:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand 27791 states and 31729 transitions. [2024-11-11 16:56:28,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-11 16:56:28,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:28,010 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:28,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 16:56:28,011 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:28,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:28,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2034218913, now seen corresponding path program 1 times [2024-11-11 16:56:28,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:28,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200935069] [2024-11-11 16:56:28,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:28,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-11 16:56:28,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:28,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200935069] [2024-11-11 16:56:28,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200935069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:28,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:28,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:28,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723966546] [2024-11-11 16:56:28,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:28,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:28,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:28,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:28,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:28,359 INFO L87 Difference]: Start difference. First operand 27791 states and 31729 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:30,510 INFO L93 Difference]: Finished difference Result 56331 states and 64213 transitions. [2024-11-11 16:56:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2024-11-11 16:56:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:30,542 INFO L225 Difference]: With dead ends: 56331 [2024-11-11 16:56:30,542 INFO L226 Difference]: Without dead ends: 28542 [2024-11-11 16:56:30,561 INFO L434 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 [2024-11-11 16:56:30,561 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 661 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:30,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 271 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 16:56:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28542 states. [2024-11-11 16:56:30,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28542 to 27040. [2024-11-11 16:56:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27040 states, 27039 states have (on average 1.1331780021450497) internal successors, (30640), 27039 states have internal predecessors, (30640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27040 states to 27040 states and 30640 transitions. [2024-11-11 16:56:30,776 INFO L78 Accepts]: Start accepts. Automaton has 27040 states and 30640 transitions. Word has length 410 [2024-11-11 16:56:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:30,776 INFO L471 AbstractCegarLoop]: Abstraction has 27040 states and 30640 transitions. [2024-11-11 16:56:30,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 27040 states and 30640 transitions. [2024-11-11 16:56:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-11 16:56:30,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:30,783 INFO L218 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:30,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 16:56:30,783 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:30,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash 18092703, now seen corresponding path program 1 times [2024-11-11 16:56:30,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:30,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827235363] [2024-11-11 16:56:30,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 160 proven. 230 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-11 16:56:31,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827235363] [2024-11-11 16:56:31,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827235363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:56:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096024460] [2024-11-11 16:56:31,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:31,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:56:31,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:56:31,172 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) [2024-11-11 16:56:31,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 16:56:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:31,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:56:31,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 16:56:31,461 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-11 16:56:31,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 16:56:31,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096024460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:31,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 16:56:31,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-11 16:56:31,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406935859] [2024-11-11 16:56:31,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:31,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:31,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:31,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:31,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:56:31,464 INFO L87 Difference]: Start difference. First operand 27040 states and 30640 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:33,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:33,824 INFO L93 Difference]: Finished difference Result 72102 states and 82428 transitions. [2024-11-11 16:56:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:33,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 421 [2024-11-11 16:56:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:33,868 INFO L225 Difference]: With dead ends: 72102 [2024-11-11 16:56:33,869 INFO L226 Difference]: Without dead ends: 45064 [2024-11-11 16:56:33,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 16:56:33,881 INFO L435 NwaCegarLoop]: 1047 mSDtfsCounter, 663 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:33,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1055 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 16:56:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45064 states. [2024-11-11 16:56:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45064 to 44313. [2024-11-11 16:56:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44313 states, 44312 states have (on average 1.1428281278209063) internal successors, (50641), 44312 states have internal predecessors, (50641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44313 states to 44313 states and 50641 transitions. [2024-11-11 16:56:34,231 INFO L78 Accepts]: Start accepts. Automaton has 44313 states and 50641 transitions. Word has length 421 [2024-11-11 16:56:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:34,234 INFO L471 AbstractCegarLoop]: Abstraction has 44313 states and 50641 transitions. [2024-11-11 16:56:34,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 44313 states and 50641 transitions. [2024-11-11 16:56:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-11 16:56:34,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:34,242 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-11 16:56:34,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 16:56:34,443 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,SelfDestructingSolverStorable8 [2024-11-11 16:56:34,443 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:34,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:34,444 INFO L85 PathProgramCache]: Analyzing trace with hash -242279663, now seen corresponding path program 1 times [2024-11-11 16:56:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:34,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037554989] [2024-11-11 16:56:34,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-11 16:56:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037554989] [2024-11-11 16:56:34,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037554989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:34,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:34,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:34,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379442513] [2024-11-11 16:56:34,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:34,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:34,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:34,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:34,644 INFO L87 Difference]: Start difference. First operand 44313 states and 50641 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:36,838 INFO L93 Difference]: Finished difference Result 104395 states and 118788 transitions. [2024-11-11 16:56:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 489 [2024-11-11 16:56:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:36,902 INFO L225 Difference]: With dead ends: 104395 [2024-11-11 16:56:36,902 INFO L226 Difference]: Without dead ends: 60084 [2024-11-11 16:56:36,931 INFO L434 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 [2024-11-11 16:56:36,932 INFO L435 NwaCegarLoop]: 1295 mSDtfsCounter, 696 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:36,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1303 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 16:56:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60084 states. [2024-11-11 16:56:37,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60084 to 54827. [2024-11-11 16:56:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54827 states, 54826 states have (on average 1.1200342903002225) internal successors, (61407), 54826 states have internal predecessors, (61407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54827 states to 54827 states and 61407 transitions. [2024-11-11 16:56:37,382 INFO L78 Accepts]: Start accepts. Automaton has 54827 states and 61407 transitions. Word has length 489 [2024-11-11 16:56:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:37,382 INFO L471 AbstractCegarLoop]: Abstraction has 54827 states and 61407 transitions. [2024-11-11 16:56:37,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 54827 states and 61407 transitions. [2024-11-11 16:56:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-11 16:56:37,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:37,599 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:56:37,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 16:56:37,599 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:37,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:37,604 INFO L85 PathProgramCache]: Analyzing trace with hash 155447839, now seen corresponding path program 1 times [2024-11-11 16:56:37,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:37,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360385750] [2024-11-11 16:56:37,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:37,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:37,890 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-11 16:56:37,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:37,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360385750] [2024-11-11 16:56:37,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360385750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:37,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:37,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:37,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987354214] [2024-11-11 16:56:37,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:37,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:37,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:37,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:37,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:37,893 INFO L87 Difference]: Start difference. First operand 54827 states and 61407 transitions. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:40,178 INFO L93 Difference]: Finished difference Result 114158 states and 127392 transitions. [2024-11-11 16:56:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 498 [2024-11-11 16:56:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:40,236 INFO L225 Difference]: With dead ends: 114158 [2024-11-11 16:56:40,236 INFO L226 Difference]: Without dead ends: 58582 [2024-11-11 16:56:40,252 INFO L434 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 [2024-11-11 16:56:40,252 INFO L435 NwaCegarLoop]: 1073 mSDtfsCounter, 778 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:40,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1080 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 16:56:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58582 states. [2024-11-11 16:56:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58582 to 54827. [2024-11-11 16:56:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54827 states, 54826 states have (on average 1.103947032429869) internal successors, (60525), 54826 states have internal predecessors, (60525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54827 states to 54827 states and 60525 transitions. [2024-11-11 16:56:40,829 INFO L78 Accepts]: Start accepts. Automaton has 54827 states and 60525 transitions. Word has length 498 [2024-11-11 16:56:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:40,830 INFO L471 AbstractCegarLoop]: Abstraction has 54827 states and 60525 transitions. [2024-11-11 16:56:40,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 54827 states and 60525 transitions. [2024-11-11 16:56:40,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-11-11 16:56:40,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:40,838 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:40,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 16:56:40,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:40,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1419183226, now seen corresponding path program 1 times [2024-11-11 16:56:40,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:40,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028455888] [2024-11-11 16:56:40,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-11 16:56:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028455888] [2024-11-11 16:56:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028455888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:40,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:40,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:40,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313114820] [2024-11-11 16:56:40,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:40,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:40,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:40,995 INFO L87 Difference]: Start difference. First operand 54827 states and 60525 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:43,609 INFO L93 Difference]: Finished difference Result 130680 states and 144332 transitions. [2024-11-11 16:56:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 516 [2024-11-11 16:56:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:43,683 INFO L225 Difference]: With dead ends: 130680 [2024-11-11 16:56:43,684 INFO L226 Difference]: Without dead ends: 76606 [2024-11-11 16:56:43,714 INFO L434 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 [2024-11-11 16:56:43,715 INFO L435 NwaCegarLoop]: 1330 mSDtfsCounter, 657 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:43,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1338 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 16:56:43,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76606 states. [2024-11-11 16:56:44,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76606 to 73602. [2024-11-11 16:56:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73602 states, 73601 states have (on average 1.0915204956454396) internal successors, (80337), 73601 states have internal predecessors, (80337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73602 states to 73602 states and 80337 transitions. [2024-11-11 16:56:44,391 INFO L78 Accepts]: Start accepts. Automaton has 73602 states and 80337 transitions. Word has length 516 [2024-11-11 16:56:44,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:44,391 INFO L471 AbstractCegarLoop]: Abstraction has 73602 states and 80337 transitions. [2024-11-11 16:56:44,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 73602 states and 80337 transitions. [2024-11-11 16:56:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-11 16:56:44,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:56:44,409 INFO L218 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:56:44,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 16:56:44,410 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:56:44,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:56:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash 90389593, now seen corresponding path program 1 times [2024-11-11 16:56:44,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:56:44,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926236013] [2024-11-11 16:56:44,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:56:44,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:56:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:56:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-11 16:56:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:56:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926236013] [2024-11-11 16:56:44,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926236013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:56:44,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:56:44,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:56:44,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015903373] [2024-11-11 16:56:44,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:56:44,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:56:44,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:56:44,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:56:44,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:56:44,853 INFO L87 Difference]: Start difference. First operand 73602 states and 80337 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:56:47,239 INFO L93 Difference]: Finished difference Result 147951 states and 161677 transitions. [2024-11-11 16:56:47,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:56:47,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 686 [2024-11-11 16:56:47,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:56:47,240 INFO L225 Difference]: With dead ends: 147951 [2024-11-11 16:56:47,240 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 16:56:47,262 INFO L434 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 [2024-11-11 16:56:47,262 INFO L435 NwaCegarLoop]: 1106 mSDtfsCounter, 757 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:56:47,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1113 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 16:56:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 16:56:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 16:56:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 16:56:47,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 686 [2024-11-11 16:56:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:56:47,263 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 16:56:47,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:56:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 16:56:47,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 16:56:47,265 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 16:56:47,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 16:56:47,270 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:56:47,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 16:56:48,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 16:56:48,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 04:56:48 BoogieIcfgContainer [2024-11-11 16:56:48,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 16:56:48,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 16:56:48,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 16:56:48,618 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 16:56:48,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:56:05" (3/4) ... [2024-11-11 16:56:48,620 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 16:56:48,656 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-11 16:56:48,660 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-11 16:56:48,664 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 16:56:48,668 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 16:56:48,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 16:56:48,960 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 16:56:48,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 16:56:48,960 INFO L158 Benchmark]: Toolchain (without parser) took 48634.58ms. Allocated memory was 178.3MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 108.1MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-11 16:56:48,960 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 16:56:48,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1174.48ms. Allocated memory was 178.3MB in the beginning and 245.4MB in the end (delta: 67.1MB). Free memory was 107.7MB in the beginning and 138.7MB in the end (delta: -31.1MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2024-11-11 16:56:48,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 318.08ms. Allocated memory is still 245.4MB. Free memory was 138.7MB in the beginning and 133.4MB in the end (delta: 5.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-11 16:56:48,961 INFO L158 Benchmark]: Boogie Preprocessor took 399.16ms. Allocated memory is still 245.4MB. Free memory was 133.4MB in the beginning and 88.0MB in the end (delta: 45.4MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2024-11-11 16:56:48,961 INFO L158 Benchmark]: RCFGBuilder took 3280.54ms. Allocated memory was 245.4MB in the beginning and 499.1MB in the end (delta: 253.8MB). Free memory was 88.0MB in the beginning and 285.7MB in the end (delta: -197.7MB). Peak memory consumption was 198.8MB. Max. memory is 16.1GB. [2024-11-11 16:56:48,961 INFO L158 Benchmark]: TraceAbstraction took 43113.27ms. Allocated memory was 499.1MB in the beginning and 4.0GB in the end (delta: 3.5GB). Free memory was 284.7MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-11-11 16:56:48,962 INFO L158 Benchmark]: Witness Printer took 342.71ms. Allocated memory is still 4.0GB. Free memory was 2.8GB in the beginning and 3.1GB in the end (delta: -366.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-11-11 16:56:48,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1174.48ms. Allocated memory was 178.3MB in the beginning and 245.4MB in the end (delta: 67.1MB). Free memory was 107.7MB in the beginning and 138.7MB in the end (delta: -31.1MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 318.08ms. Allocated memory is still 245.4MB. Free memory was 138.7MB in the beginning and 133.4MB in the end (delta: 5.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 399.16ms. Allocated memory is still 245.4MB. Free memory was 133.4MB in the beginning and 88.0MB in the end (delta: 45.4MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. * RCFGBuilder took 3280.54ms. Allocated memory was 245.4MB in the beginning and 499.1MB in the end (delta: 253.8MB). Free memory was 88.0MB in the beginning and 285.7MB in the end (delta: -197.7MB). Peak memory consumption was 198.8MB. Max. memory is 16.1GB. * TraceAbstraction took 43113.27ms. Allocated memory was 499.1MB in the beginning and 4.0GB in the end (delta: 3.5GB). Free memory was 284.7MB in the beginning and 2.8GB in the end (delta: -2.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 342.71ms. Allocated memory is still 4.0GB. Free memory was 2.8GB in the beginning and 3.1GB in the end (delta: -366.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 148]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 818 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.7s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 33.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11076 SdHoareTripleChecker+Valid, 29.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11076 mSDsluCounter, 11306 SdHoareTripleChecker+Invalid, 24.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 8760 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31372 IncrementalHoareTripleChecker+Invalid, 40132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8760 mSolverCounterUnsat, 11185 mSDtfsCounter, 31372 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 727 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73602occurred in iteration=12, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 17283 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 5471 NumberOfCodeBlocks, 5471 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5456 ConstructedInterpolants, 0 QuantifiedInterpolants, 13487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 6043/6327 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4828]: Loop Invariant Derived loop invariant: ((((((((a7 <= 13) && (5 == a5)) || (((a2 <= 170) && (a7 == 13)) && (((long long) a17 + 124) <= 0))) || ((a5 != 4) && (a2 <= 189))) || ((0 <= ((long long) a17 + 107)) && (a2 <= 189))) || ((a24 <= 14) && (5 == a5))) || (a24 == 13)) || ((a5 <= 4) && (190 <= a2))) RESULT: Ultimate proved your program to be correct! [2024-11-11 16:56:48,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE