./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_label02.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 5f9f68a3a1240fc969efb46a01cb5f627c0ce9dd351fdfdef3544b10231a4d97 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:05:32,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:05:32,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:05:32,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:05:32,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:05:32,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:05:32,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:05:32,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:05:32,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:05:32,610 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:05:32,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:05:32,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:05:32,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:05:32,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:05:32,612 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:05:32,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:05:32,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:05:32,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:05:32,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:05:32,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:05:32,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:05:32,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:05:32,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:05:32,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:05:32,618 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:05:32,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:05:32,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:05:32,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:05:32,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:05:32,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:05:32,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:05:32,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:05:32,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:05:32,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:05:32,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:05:32,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:05:32,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:05:32,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f9f68a3a1240fc969efb46a01cb5f627c0ce9dd351fdfdef3544b10231a4d97 [2024-11-21 22:05:32,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:05:32,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:05:32,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:05:32,847 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:05:32,848 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:05:32,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label02.c [2024-11-21 22:05:34,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:05:34,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:05:34,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label02.c [2024-11-21 22:05:34,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1151f240/581bc19063bc4afb80b0925edff8927f/FLAG74f738e52 [2024-11-21 22:05:34,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1151f240/581bc19063bc4afb80b0925edff8927f [2024-11-21 22:05:34,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:05:34,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:05:34,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:05:34,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:05:34,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:05:34,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:34" (1/1) ... [2024-11-21 22:05:34,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6099d862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:34, skipping insertion in model container [2024-11-21 22:05:34,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:34" (1/1) ... [2024-11-21 22:05:34,915 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:05:35,114 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_label02.c[7651,7664] [2024-11-21 22:05:35,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:05:35,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:05:35,679 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_label02.c[7651,7664] [2024-11-21 22:05:36,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:05:36,096 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:05:36,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36 WrapperNode [2024-11-21 22:05:36,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:05:36,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:05:36,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:05:36,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:05:36,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,433 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-21 22:05:36,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:05:36,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:05:36,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:05:36,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:05:36,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,668 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]. [2024-11-21 22:05:36,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:05:36,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:05:36,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:05:36,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:05:36,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (1/1) ... [2024-11-21 22:05:36,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:05:36,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:05:36,982 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) [2024-11-21 22:05:36,984 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 [2024-11-21 22:05:37,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:05:37,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:05:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:05:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:05:37,067 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:05:37,069 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:05:40,236 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-21 22:05:40,236 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:05:40,269 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:05:40,269 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:05:40,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:40 BoogieIcfgContainer [2024-11-21 22:05:40,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:05:40,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:05:40,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:05:40,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:05:40,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:34" (1/3) ... [2024-11-21 22:05:40,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca83dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:40, skipping insertion in model container [2024-11-21 22:05:40,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:36" (2/3) ... [2024-11-21 22:05:40,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca83dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:40, skipping insertion in model container [2024-11-21 22:05:40,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:40" (3/3) ... [2024-11-21 22:05:40,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label02.c [2024-11-21 22:05:40,303 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:05:40,303 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:05:40,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:05:40,368 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;@3eb10d74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:05:40,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:05:40,374 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) [2024-11-21 22:05:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-21 22:05:40,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:40,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:05:40,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:40,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:40,385 INFO L85 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2024-11-21 22:05:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:40,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515853035] [2024-11-21 22:05:40,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:40,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:05:40,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515853035] [2024-11-21 22:05:40,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515853035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:40,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:05:40,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:05:40,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120237700] [2024-11-21 22:05:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:40,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:05:40,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:05:40,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:05:40,731 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 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:43,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:05:43,842 INFO L93 Difference]: Finished difference Result 2404 states and 4645 transitions. [2024-11-21 22:05:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:05:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-21 22:05:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:05:43,865 INFO L225 Difference]: With dead ends: 2404 [2024-11-21 22:05:43,866 INFO L226 Difference]: Without dead ends: 1506 [2024-11-21 22:05:43,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:05:43,872 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 758 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:05:43,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 525 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-21 22:05:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-21 22:05:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-21 22:05:43,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.6066445182724252) internal successors, (2418), 1505 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2418 transitions. [2024-11-21 22:05:43,969 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2418 transitions. Word has length 62 [2024-11-21 22:05:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:05:43,970 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2418 transitions. [2024-11-21 22:05:43,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:43,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2418 transitions. [2024-11-21 22:05:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-21 22:05:43,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:43,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:05:43,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:05:43,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:43,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash 158284175, now seen corresponding path program 1 times [2024-11-21 22:05:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998758118] [2024-11-21 22:05:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:05:44,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:44,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998758118] [2024-11-21 22:05:44,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998758118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:44,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:05:44,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:05:44,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180565095] [2024-11-21 22:05:44,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:44,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:05:44,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:44,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:05:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:05:44,104 INFO L87 Difference]: Start difference. First operand 1506 states and 2418 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:05:46,706 INFO L93 Difference]: Finished difference Result 4512 states and 7249 transitions. [2024-11-21 22:05:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:05:46,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-21 22:05:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:05:46,714 INFO L225 Difference]: With dead ends: 4512 [2024-11-21 22:05:46,715 INFO L226 Difference]: Without dead ends: 3008 [2024-11-21 22:05:46,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:05:46,718 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 774 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:05:46,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 449 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:05:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-21 22:05:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-11-21 22:05:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4156967076820752) internal successors, (4257), 3007 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4257 transitions. [2024-11-21 22:05:46,757 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4257 transitions. Word has length 137 [2024-11-21 22:05:46,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:05:46,759 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4257 transitions. [2024-11-21 22:05:46,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4257 transitions. [2024-11-21 22:05:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-21 22:05:46,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:46,761 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:05:46,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:05:46,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:46,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1924184374, now seen corresponding path program 1 times [2024-11-21 22:05:46,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643863377] [2024-11-21 22:05:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:46,983 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:05:46,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:46,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643863377] [2024-11-21 22:05:46,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643863377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:46,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:05:46,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:05:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739844338] [2024-11-21 22:05:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:46,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:05:46,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:46,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:05:46,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:05:46,985 INFO L87 Difference]: Start difference. First operand 3008 states and 4257 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:05:50,977 INFO L93 Difference]: Finished difference Result 9769 states and 13601 transitions. [2024-11-21 22:05:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:05:50,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-11-21 22:05:50,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:05:50,993 INFO L225 Difference]: With dead ends: 9769 [2024-11-21 22:05:50,994 INFO L226 Difference]: Without dead ends: 6763 [2024-11-21 22:05:50,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:05:50,997 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 2180 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4712 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 5459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 4712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:05:50,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 166 Invalid, 5459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 4712 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-21 22:05:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2024-11-21 22:05:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6763. [2024-11-21 22:05:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 6762 states have (on average 1.3507837917775807) internal successors, (9134), 6762 states have internal predecessors, (9134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 9134 transitions. [2024-11-21 22:05:51,107 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 9134 transitions. Word has length 139 [2024-11-21 22:05:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:05:51,107 INFO L471 AbstractCegarLoop]: Abstraction has 6763 states and 9134 transitions. [2024-11-21 22:05:51,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 9134 transitions. [2024-11-21 22:05:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-21 22:05:51,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:51,114 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:05:51,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:05:51,115 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:51,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1063433376, now seen corresponding path program 1 times [2024-11-21 22:05:51,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:51,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072164097] [2024-11-21 22:05:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:51,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-21 22:05:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:51,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072164097] [2024-11-21 22:05:51,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072164097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:05:51,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363601921] [2024-11-21 22:05:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:51,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:05:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:05:51,540 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) [2024-11-21 22:05:51,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 22:05:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:51,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-21 22:05:51,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:05:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-21 22:05:51,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 22:05:51,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363601921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:51,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 22:05:51,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-21 22:05:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912425599] [2024-11-21 22:05:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:51,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:05:51,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:05:51,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:05:51,870 INFO L87 Difference]: Start difference. First operand 6763 states and 9134 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:53,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:05:53,902 INFO L93 Difference]: Finished difference Result 15777 states and 21144 transitions. [2024-11-21 22:05:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:05:53,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 207 [2024-11-21 22:05:53,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:05:53,929 INFO L225 Difference]: With dead ends: 15777 [2024-11-21 22:05:53,930 INFO L226 Difference]: Without dead ends: 9767 [2024-11-21 22:05:53,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:05:53,938 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 712 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:05:53,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 156 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-21 22:05:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-21 22:05:54,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-21 22:05:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.2556829817734998) internal successors, (12263), 9766 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12263 transitions. [2024-11-21 22:05:54,056 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12263 transitions. Word has length 207 [2024-11-21 22:05:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:05:54,057 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12263 transitions. [2024-11-21 22:05:54,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12263 transitions. [2024-11-21 22:05:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-21 22:05:54,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:54,061 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:05:54,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-21 22:05:54,261 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 [2024-11-21 22:05:54,263 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:54,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:54,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2118553831, now seen corresponding path program 1 times [2024-11-21 22:05:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:54,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909719057] [2024-11-21 22:05:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-21 22:05:54,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:54,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909719057] [2024-11-21 22:05:54,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909719057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:54,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:05:54,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:05:54,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643588200] [2024-11-21 22:05:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:54,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:05:54,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:05:54,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:05:54,610 INFO L87 Difference]: Start difference. First operand 9767 states and 12263 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:05:57,764 INFO L93 Difference]: Finished difference Result 27118 states and 34546 transitions. [2024-11-21 22:05:57,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:05:57,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 274 [2024-11-21 22:05:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:05:57,808 INFO L225 Difference]: With dead ends: 27118 [2024-11-21 22:05:57,809 INFO L226 Difference]: Without dead ends: 18030 [2024-11-21 22:05:57,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:05:57,821 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 775 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3717 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 3717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:05:57,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 365 Invalid, 4343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 3717 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-21 22:05:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18030 states. [2024-11-21 22:05:58,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18030 to 15775. [2024-11-21 22:05:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15774 states have (on average 1.1934195511601369) internal successors, (18825), 15774 states have internal predecessors, (18825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 18825 transitions. [2024-11-21 22:05:58,128 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 18825 transitions. Word has length 274 [2024-11-21 22:05:58,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:05:58,128 INFO L471 AbstractCegarLoop]: Abstraction has 15775 states and 18825 transitions. [2024-11-21 22:05:58,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:05:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 18825 transitions. [2024-11-21 22:05:58,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-21 22:05:58,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:05:58,136 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:05:58,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:05:58,137 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:05:58,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:05:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash -797031540, now seen corresponding path program 1 times [2024-11-21 22:05:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:05:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490455180] [2024-11-21 22:05:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:05:58,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:05:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:05:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-21 22:05:58,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:05:58,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490455180] [2024-11-21 22:05:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490455180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:05:58,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:05:58,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:05:58,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804630792] [2024-11-21 22:05:58,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:05:58,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:05:58,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:05:58,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:05:58,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:05:58,351 INFO L87 Difference]: Start difference. First operand 15775 states and 18825 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:00,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:00,977 INFO L93 Difference]: Finished difference Result 39058 states and 47478 transitions. [2024-11-21 22:06:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:00,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 385 [2024-11-21 22:06:00,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:01,011 INFO L225 Difference]: With dead ends: 39058 [2024-11-21 22:06:01,012 INFO L226 Difference]: Without dead ends: 24036 [2024-11-21 22:06:01,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:01,027 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 695 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:01,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 428 Invalid, 2900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:06:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24036 states. [2024-11-21 22:06:01,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24036 to 24036. [2024-11-21 22:06:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24036 states, 24035 states have (on average 1.182275847722072) internal successors, (28416), 24035 states have internal predecessors, (28416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24036 states to 24036 states and 28416 transitions. [2024-11-21 22:06:01,247 INFO L78 Accepts]: Start accepts. Automaton has 24036 states and 28416 transitions. Word has length 385 [2024-11-21 22:06:01,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:01,248 INFO L471 AbstractCegarLoop]: Abstraction has 24036 states and 28416 transitions. [2024-11-21 22:06:01,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:01,248 INFO L276 IsEmpty]: Start isEmpty. Operand 24036 states and 28416 transitions. [2024-11-21 22:06:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-21 22:06:01,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:01,253 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:06:01,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:06:01,253 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:01,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:01,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1789129640, now seen corresponding path program 1 times [2024-11-21 22:06:01,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:01,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962037165] [2024-11-21 22:06:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:01,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-21 22:06:01,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:01,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962037165] [2024-11-21 22:06:01,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962037165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:01,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:01,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107312335] [2024-11-21 22:06:01,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:01,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:01,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:01,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:01,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:01,554 INFO L87 Difference]: Start difference. First operand 24036 states and 28416 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:03,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:03,624 INFO L93 Difference]: Finished difference Result 56331 states and 68010 transitions. [2024-11-21 22:06:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 396 [2024-11-21 22:06:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:03,675 INFO L225 Difference]: With dead ends: 56331 [2024-11-21 22:06:03,676 INFO L226 Difference]: Without dead ends: 33048 [2024-11-21 22:06:03,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:03,700 INFO L432 NwaCegarLoop]: 1208 mSDtfsCounter, 669 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:03,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1216 Invalid, 2683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-21 22:06:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33048 states. [2024-11-21 22:06:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33048 to 30795. [2024-11-21 22:06:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30795 states, 30794 states have (on average 1.1705851789309605) internal successors, (36047), 30794 states have internal predecessors, (36047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30795 states to 30795 states and 36047 transitions. [2024-11-21 22:06:03,963 INFO L78 Accepts]: Start accepts. Automaton has 30795 states and 36047 transitions. Word has length 396 [2024-11-21 22:06:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:03,963 INFO L471 AbstractCegarLoop]: Abstraction has 30795 states and 36047 transitions. [2024-11-21 22:06:03,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 30795 states and 36047 transitions. [2024-11-21 22:06:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-21 22:06:03,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:03,969 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:06:03,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:06:03,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:03,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1548462628, now seen corresponding path program 1 times [2024-11-21 22:06:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739858101] [2024-11-21 22:06:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:03,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-21 22:06:04,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:04,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739858101] [2024-11-21 22:06:04,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739858101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:04,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:04,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:04,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937707913] [2024-11-21 22:06:04,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:04,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:04,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:04,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:04,443 INFO L87 Difference]: Start difference. First operand 30795 states and 36047 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:06,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:06,919 INFO L93 Difference]: Finished difference Result 69849 states and 83272 transitions. [2024-11-21 22:06:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 417 [2024-11-21 22:06:06,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:06,960 INFO L225 Difference]: With dead ends: 69849 [2024-11-21 22:06:06,961 INFO L226 Difference]: Without dead ends: 39807 [2024-11-21 22:06:06,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:06,984 INFO L432 NwaCegarLoop]: 1277 mSDtfsCounter, 673 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:06,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1285 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-21 22:06:07,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39807 states. [2024-11-21 22:06:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39807 to 39807. [2024-11-21 22:06:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39807 states, 39806 states have (on average 1.1525146962769433) internal successors, (45877), 39806 states have internal predecessors, (45877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39807 states to 39807 states and 45877 transitions. [2024-11-21 22:06:07,313 INFO L78 Accepts]: Start accepts. Automaton has 39807 states and 45877 transitions. Word has length 417 [2024-11-21 22:06:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:07,314 INFO L471 AbstractCegarLoop]: Abstraction has 39807 states and 45877 transitions. [2024-11-21 22:06:07,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 39807 states and 45877 transitions. [2024-11-21 22:06:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-21 22:06:07,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:07,325 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:06:07,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:06:07,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:07,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash -405541038, now seen corresponding path program 1 times [2024-11-21 22:06:07,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:07,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079515305] [2024-11-21 22:06:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:07,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 452 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:06:08,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079515305] [2024-11-21 22:06:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079515305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 22:06:08,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735379031] [2024-11-21 22:06:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:08,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 22:06:08,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:06:08,676 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) [2024-11-21 22:06:08,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 22:06:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:08,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-21 22:06:08,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 22:06:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 312 proven. 60 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-21 22:06:09,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 22:06:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 312 proven. 60 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-21 22:06:09,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735379031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 22:06:09,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 22:06:09,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2024-11-21 22:06:09,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852881860] [2024-11-21 22:06:09,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 22:06:09,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-21 22:06:09,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:09,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-21 22:06:09,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-21 22:06:09,388 INFO L87 Difference]: Start difference. First operand 39807 states and 45877 transitions. Second operand has 11 states, 11 states have (on average 80.36363636363636) internal successors, (884), 11 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:35,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:35,041 INFO L93 Difference]: Finished difference Result 171236 states and 194891 transitions. [2024-11-21 22:06:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-21 22:06:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 80.36363636363636) internal successors, (884), 11 states have internal predecessors, (884), 0 states have call successors, (0), 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 [2024-11-21 22:06:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:35,184 INFO L225 Difference]: With dead ends: 171236 [2024-11-21 22:06:35,184 INFO L226 Difference]: Without dead ends: 130680 [2024-11-21 22:06:35,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2024-11-21 22:06:35,221 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 12823 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 43196 mSolverCounterSat, 3810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12823 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 47006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3810 IncrementalHoareTripleChecker+Valid, 43196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:35,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12823 Valid, 329 Invalid, 47006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3810 Valid, 43196 Invalid, 0 Unknown, 0 Unchecked, 24.2s Time] [2024-11-21 22:06:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130680 states. [2024-11-21 22:06:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130680 to 84116. [2024-11-21 22:06:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84116 states, 84115 states have (on average 1.1242227902276645) internal successors, (94564), 84115 states have internal predecessors, (94564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84116 states to 84116 states and 94564 transitions. [2024-11-21 22:06:36,417 INFO L78 Accepts]: Start accepts. Automaton has 84116 states and 94564 transitions. Word has length 421 [2024-11-21 22:06:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:36,419 INFO L471 AbstractCegarLoop]: Abstraction has 84116 states and 94564 transitions. [2024-11-21 22:06:36,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 80.36363636363636) internal successors, (884), 11 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 84116 states and 94564 transitions. [2024-11-21 22:06:36,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-21 22:06:36,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:36,427 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-21 22:06:36,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 22:06:36,627 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 [2024-11-21 22:06:36,628 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:36,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:36,629 INFO L85 PathProgramCache]: Analyzing trace with hash -15096808, now seen corresponding path program 1 times [2024-11-21 22:06:36,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:36,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141549761] [2024-11-21 22:06:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:36,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-21 22:06:37,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:37,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141549761] [2024-11-21 22:06:37,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141549761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:37,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:37,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:37,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221115570] [2024-11-21 22:06:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:37,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:37,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:37,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:37,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:37,231 INFO L87 Difference]: Start difference. First operand 84116 states and 94564 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:40,331 INFO L93 Difference]: Finished difference Result 225306 states and 254534 transitions. [2024-11-21 22:06:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:40,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 463 [2024-11-21 22:06:40,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:40,697 INFO L225 Difference]: With dead ends: 225306 [2024-11-21 22:06:40,697 INFO L226 Difference]: Without dead ends: 140441 [2024-11-21 22:06:40,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:40,775 INFO L432 NwaCegarLoop]: 1336 mSDtfsCounter, 657 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:40,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1343 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:06:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140441 states. [2024-11-21 22:06:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140441 to 130678. [2024-11-21 22:06:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130678 states, 130677 states have (on average 1.1015480918600824) internal successors, (143947), 130677 states have internal predecessors, (143947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:42,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130678 states to 130678 states and 143947 transitions. [2024-11-21 22:06:42,410 INFO L78 Accepts]: Start accepts. Automaton has 130678 states and 143947 transitions. Word has length 463 [2024-11-21 22:06:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:42,411 INFO L471 AbstractCegarLoop]: Abstraction has 130678 states and 143947 transitions. [2024-11-21 22:06:42,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 130678 states and 143947 transitions. [2024-11-21 22:06:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-21 22:06:42,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:42,433 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:06:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 22:06:42,434 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:42,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:42,435 INFO L85 PathProgramCache]: Analyzing trace with hash -321984110, now seen corresponding path program 1 times [2024-11-21 22:06:42,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:42,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001108991] [2024-11-21 22:06:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:42,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-21 22:06:42,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:42,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001108991] [2024-11-21 22:06:42,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001108991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:42,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:42,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:42,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035728095] [2024-11-21 22:06:42,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:42,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:42,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:42,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:42,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:42,816 INFO L87 Difference]: Start difference. First operand 130678 states and 143947 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:46,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:46,019 INFO L93 Difference]: Finished difference Result 310169 states and 344532 transitions. [2024-11-21 22:06:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:46,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 488 [2024-11-21 22:06:46,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:46,228 INFO L225 Difference]: With dead ends: 310169 [2024-11-21 22:06:46,229 INFO L226 Difference]: Without dead ends: 178742 [2024-11-21 22:06:46,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:46,282 INFO L432 NwaCegarLoop]: 1117 mSDtfsCounter, 781 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:46,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1124 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:06:46,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178742 states. [2024-11-21 22:06:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178742 to 171232. [2024-11-21 22:06:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171232 states, 171231 states have (on average 1.1036844963820804) internal successors, (188985), 171231 states have internal predecessors, (188985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171232 states to 171232 states and 188985 transitions. [2024-11-21 22:06:48,747 INFO L78 Accepts]: Start accepts. Automaton has 171232 states and 188985 transitions. Word has length 488 [2024-11-21 22:06:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:48,748 INFO L471 AbstractCegarLoop]: Abstraction has 171232 states and 188985 transitions. [2024-11-21 22:06:48,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:48,748 INFO L276 IsEmpty]: Start isEmpty. Operand 171232 states and 188985 transitions. [2024-11-21 22:06:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-21 22:06:48,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:48,771 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:06:48,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:06:48,771 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:48,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 8677539, now seen corresponding path program 1 times [2024-11-21 22:06:48,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:48,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589233289] [2024-11-21 22:06:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-21 22:06:48,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:48,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589233289] [2024-11-21 22:06:48,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589233289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:48,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:48,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:48,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897536936] [2024-11-21 22:06:48,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:48,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:48,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:48,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:48,964 INFO L87 Difference]: Start difference. First operand 171232 states and 188985 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:52,164 INFO L93 Difference]: Finished difference Result 343964 states and 379477 transitions. [2024-11-21 22:06:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:52,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 494 [2024-11-21 22:06:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:52,396 INFO L225 Difference]: With dead ends: 343964 [2024-11-21 22:06:52,396 INFO L226 Difference]: Without dead ends: 172734 [2024-11-21 22:06:52,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:52,481 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 800 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:52,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 222 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 2215 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-21 22:06:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172734 states. [2024-11-21 22:06:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172734 to 160718. [2024-11-21 22:06:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160718 states, 160717 states have (on average 1.07856045097905) internal successors, (173343), 160717 states have internal predecessors, (173343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160718 states to 160718 states and 173343 transitions. [2024-11-21 22:06:54,497 INFO L78 Accepts]: Start accepts. Automaton has 160718 states and 173343 transitions. Word has length 494 [2024-11-21 22:06:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:06:54,498 INFO L471 AbstractCegarLoop]: Abstraction has 160718 states and 173343 transitions. [2024-11-21 22:06:54,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 160718 states and 173343 transitions. [2024-11-21 22:06:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-21 22:06:54,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:06:54,505 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:06:54,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:06:54,505 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:06:54,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:06:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1716293343, now seen corresponding path program 1 times [2024-11-21 22:06:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:06:54,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972777729] [2024-11-21 22:06:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:06:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:06:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:06:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-21 22:06:54,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:06:54,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972777729] [2024-11-21 22:06:54,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972777729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:06:54,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:06:54,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:06:54,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249412607] [2024-11-21 22:06:54,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:06:54,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:06:54,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:06:54,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:06:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:54,994 INFO L87 Difference]: Start difference. First operand 160718 states and 173343 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:06:58,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:06:58,350 INFO L93 Difference]: Finished difference Result 362739 states and 392799 transitions. [2024-11-21 22:06:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:06:58,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 494 [2024-11-21 22:06:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:06:58,602 INFO L225 Difference]: With dead ends: 362739 [2024-11-21 22:06:58,603 INFO L226 Difference]: Without dead ends: 202023 [2024-11-21 22:06:58,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:06:58,693 INFO L432 NwaCegarLoop]: 1235 mSDtfsCounter, 666 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:06:58,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1243 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-21 22:06:58,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202023 states. [2024-11-21 22:07:00,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202023 to 196015. [2024-11-21 22:07:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196015 states, 196014 states have (on average 1.070474557939739) internal successors, (209828), 196014 states have internal predecessors, (209828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196015 states to 196015 states and 209828 transitions. [2024-11-21 22:07:01,589 INFO L78 Accepts]: Start accepts. Automaton has 196015 states and 209828 transitions. Word has length 494 [2024-11-21 22:07:01,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:07:01,590 INFO L471 AbstractCegarLoop]: Abstraction has 196015 states and 209828 transitions. [2024-11-21 22:07:01,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 196015 states and 209828 transitions. [2024-11-21 22:07:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-21 22:07:01,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:07:01,610 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:07:01,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:07:01,610 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:07:01,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:07:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1685247736, now seen corresponding path program 1 times [2024-11-21 22:07:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:07:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553935969] [2024-11-21 22:07:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:07:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:07:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:07:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-21 22:07:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:07:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553935969] [2024-11-21 22:07:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553935969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:07:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:07:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:07:01,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797309720] [2024-11-21 22:07:01,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:07:01,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:07:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:07:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:07:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:07:01,846 INFO L87 Difference]: Start difference. First operand 196015 states and 209828 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:07:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:07:04,965 INFO L93 Difference]: Finished difference Result 395783 states and 423457 transitions. [2024-11-21 22:07:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:07:04,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 545 [2024-11-21 22:07:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:07:05,210 INFO L225 Difference]: With dead ends: 395783 [2024-11-21 22:07:05,210 INFO L226 Difference]: Without dead ends: 195264