/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:17:28,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:17:28,458 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:17:28,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:17:28,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:17:28,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:17:28,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:17:28,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:17:28,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:17:28,487 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:17:28,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:17:28,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:17:28,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:17:28,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:17:28,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:17:28,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:17:28,491 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:17:28,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:17:28,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:17:28,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:17:28,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:17:28,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:17:28,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:17:28,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:17:28,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:17:28,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:17:28,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:17:28,712 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:17:28,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-21 14:17:29,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:17:29,896 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:17:29,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-21 14:17:29,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63878f96/a61c3e5db3ae4a1481bac73f721fbfcc/FLAGfb34f6a76 [2023-12-21 14:17:29,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63878f96/a61c3e5db3ae4a1481bac73f721fbfcc [2023-12-21 14:17:29,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:17:29,932 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:17:29,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:17:29,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:17:29,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:17:29,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:17:29" (1/1) ... [2023-12-21 14:17:29,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa19f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:29, skipping insertion in model container [2023-12-21 14:17:29,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:17:29" (1/1) ... [2023-12-21 14:17:29,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:17:30,146 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2023-12-21 14:17:30,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:17:30,208 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:17:30,255 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c[8604,8617] [2023-12-21 14:17:30,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:17:30,288 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:17:30,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30 WrapperNode [2023-12-21 14:17:30,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:17:30,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:17:30,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:17:30,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:17:30,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,345 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 713 [2023-12-21 14:17:30,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:17:30,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:17:30,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:17:30,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:17:30,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,371 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]. [2023-12-21 14:17:30,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:17:30,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:17:30,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:17:30,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:17:30,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (1/1) ... [2023-12-21 14:17:30,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:17:30,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:17:30,447 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) [2023-12-21 14:17:30,468 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 [2023-12-21 14:17:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:17:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:17:30,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:17:30,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:17:30,600 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:17:30,602 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:17:31,088 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:17:31,132 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:17:31,133 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 14:17:31,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:17:31 BoogieIcfgContainer [2023-12-21 14:17:31,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:17:31,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:17:31,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:17:31,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:17:31,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:17:29" (1/3) ... [2023-12-21 14:17:31,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4428725e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:17:31, skipping insertion in model container [2023-12-21 14:17:31,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:17:30" (2/3) ... [2023-12-21 14:17:31,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4428725e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:17:31, skipping insertion in model container [2023-12-21 14:17:31,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:17:31" (3/3) ... [2023-12-21 14:17:31,138 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+cfa-reducer.c [2023-12-21 14:17:31,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:17:31,153 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 14:17:31,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:17:31,201 INFO L357 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, mHoare=true, 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;@273a9025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:17:31,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 14:17:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 14:17:31,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:31,217 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:31,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:31,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:31,223 INFO L85 PathProgramCache]: Analyzing trace with hash 304652064, now seen corresponding path program 1 times [2023-12-21 14:17:31,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:31,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830418720] [2023-12-21 14:17:31,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:31,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:31,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:31,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830418720] [2023-12-21 14:17:31,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830418720] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:31,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:31,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:31,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182464951] [2023-12-21 14:17:31,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:31,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:31,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:31,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:31,656 INFO L87 Difference]: Start difference. First operand has 155 states, 153 states have (on average 1.7712418300653594) internal successors, (271), 154 states have internal predecessors, (271), 0 states have call successors, (0), 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 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:31,725 INFO L93 Difference]: Finished difference Result 331 states and 550 transitions. [2023-12-21 14:17:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-21 14:17:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:31,739 INFO L225 Difference]: With dead ends: 331 [2023-12-21 14:17:31,739 INFO L226 Difference]: Without dead ends: 235 [2023-12-21 14:17:31,742 INFO L412 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 [2023-12-21 14:17:31,744 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 192 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:31,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 537 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-21 14:17:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2023-12-21 14:17:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2023-12-21 14:17:31,777 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 100 [2023-12-21 14:17:31,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:31,778 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2023-12-21 14:17:31,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2023-12-21 14:17:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 14:17:31,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:31,780 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:31,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:17:31,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:31,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash -483910651, now seen corresponding path program 1 times [2023-12-21 14:17:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672526454] [2023-12-21 14:17:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:31,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:31,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:31,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672526454] [2023-12-21 14:17:31,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672526454] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:31,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:31,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:31,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042584576] [2023-12-21 14:17:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:31,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:31,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:31,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:31,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:31,933 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:31,972 INFO L93 Difference]: Finished difference Result 557 states and 850 transitions. [2023-12-21 14:17:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-21 14:17:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:31,974 INFO L225 Difference]: With dead ends: 557 [2023-12-21 14:17:31,975 INFO L226 Difference]: Without dead ends: 387 [2023-12-21 14:17:31,975 INFO L412 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 [2023-12-21 14:17:31,976 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 128 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:31,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 465 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-21 14:17:31,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2023-12-21 14:17:31,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5) internal successors, (576), 384 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 576 transitions. [2023-12-21 14:17:31,997 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 576 transitions. Word has length 101 [2023-12-21 14:17:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:31,998 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 576 transitions. [2023-12-21 14:17:31,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 576 transitions. [2023-12-21 14:17:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 14:17:32,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:32,001 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:32,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:17:32,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:32,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1453510063, now seen corresponding path program 1 times [2023-12-21 14:17:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140783686] [2023-12-21 14:17:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:32,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140783686] [2023-12-21 14:17:32,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140783686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:32,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:32,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:32,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257247502] [2023-12-21 14:17:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:32,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:32,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:32,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:32,098 INFO L87 Difference]: Start difference. First operand 385 states and 576 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:32,121 INFO L93 Difference]: Finished difference Result 997 states and 1550 transitions. [2023-12-21 14:17:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:32,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2023-12-21 14:17:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:32,126 INFO L225 Difference]: With dead ends: 997 [2023-12-21 14:17:32,126 INFO L226 Difference]: Without dead ends: 675 [2023-12-21 14:17:32,128 INFO L412 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 [2023-12-21 14:17:32,129 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 123 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:32,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:32,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-12-21 14:17:32,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 673. [2023-12-21 14:17:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.5357142857142858) internal successors, (1032), 672 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1032 transitions. [2023-12-21 14:17:32,181 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1032 transitions. Word has length 102 [2023-12-21 14:17:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:32,181 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1032 transitions. [2023-12-21 14:17:32,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,182 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1032 transitions. [2023-12-21 14:17:32,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 14:17:32,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:32,184 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:32,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 14:17:32,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:32,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:32,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1672154048, now seen corresponding path program 1 times [2023-12-21 14:17:32,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:32,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115398782] [2023-12-21 14:17:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:32,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:32,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:32,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115398782] [2023-12-21 14:17:32,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115398782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:32,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:32,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:32,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270315194] [2023-12-21 14:17:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:32,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:32,325 INFO L87 Difference]: Start difference. First operand 673 states and 1032 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:32,340 INFO L93 Difference]: Finished difference Result 1829 states and 2866 transitions. [2023-12-21 14:17:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-21 14:17:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:32,344 INFO L225 Difference]: With dead ends: 1829 [2023-12-21 14:17:32,344 INFO L226 Difference]: Without dead ends: 1219 [2023-12-21 14:17:32,345 INFO L412 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 [2023-12-21 14:17:32,346 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 118 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:32,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 457 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:32,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-12-21 14:17:32,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1217. [2023-12-21 14:17:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.5526315789473684) internal successors, (1888), 1216 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1888 transitions. [2023-12-21 14:17:32,377 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1888 transitions. Word has length 103 [2023-12-21 14:17:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:32,378 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 1888 transitions. [2023-12-21 14:17:32,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1888 transitions. [2023-12-21 14:17:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 14:17:32,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:32,382 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:32,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 14:17:32,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:32,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1766547414, now seen corresponding path program 1 times [2023-12-21 14:17:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:32,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727842971] [2023-12-21 14:17:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:32,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727842971] [2023-12-21 14:17:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727842971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:32,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:32,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:32,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740728561] [2023-12-21 14:17:32,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:32,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:32,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:32,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:32,482 INFO L87 Difference]: Start difference. First operand 1217 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:32,501 INFO L93 Difference]: Finished difference Result 3397 states and 5330 transitions. [2023-12-21 14:17:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2023-12-21 14:17:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:32,508 INFO L225 Difference]: With dead ends: 3397 [2023-12-21 14:17:32,508 INFO L226 Difference]: Without dead ends: 2243 [2023-12-21 14:17:32,509 INFO L412 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 [2023-12-21 14:17:32,510 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 113 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:32,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2023-12-21 14:17:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2241. [2023-12-21 14:17:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 2240 states have (on average 1.5571428571428572) internal successors, (3488), 2240 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3488 transitions. [2023-12-21 14:17:32,538 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3488 transitions. Word has length 104 [2023-12-21 14:17:32,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:32,538 INFO L495 AbstractCegarLoop]: Abstraction has 2241 states and 3488 transitions. [2023-12-21 14:17:32,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3488 transitions. [2023-12-21 14:17:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 14:17:32,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:32,542 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:32,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 14:17:32,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:32,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:32,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1695207288, now seen corresponding path program 1 times [2023-12-21 14:17:32,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:32,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530016873] [2023-12-21 14:17:32,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:32,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530016873] [2023-12-21 14:17:32,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530016873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:32,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:32,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074436488] [2023-12-21 14:17:32,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:32,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:32,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:32,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:32,623 INFO L87 Difference]: Start difference. First operand 2241 states and 3488 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:32,650 INFO L93 Difference]: Finished difference Result 6341 states and 9922 transitions. [2023-12-21 14:17:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:32,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-12-21 14:17:32,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:32,662 INFO L225 Difference]: With dead ends: 6341 [2023-12-21 14:17:32,662 INFO L226 Difference]: Without dead ends: 4163 [2023-12-21 14:17:32,667 INFO L412 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 [2023-12-21 14:17:32,670 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 108 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:32,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 449 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2023-12-21 14:17:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4161. [2023-12-21 14:17:32,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 4160 states have (on average 1.5538461538461539) internal successors, (6464), 4160 states have internal predecessors, (6464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 6464 transitions. [2023-12-21 14:17:32,833 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 6464 transitions. Word has length 105 [2023-12-21 14:17:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:32,834 INFO L495 AbstractCegarLoop]: Abstraction has 4161 states and 6464 transitions. [2023-12-21 14:17:32,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 6464 transitions. [2023-12-21 14:17:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 14:17:32,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:32,835 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:32,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 14:17:32,836 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:32,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1794051376, now seen corresponding path program 1 times [2023-12-21 14:17:32,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:32,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879680336] [2023-12-21 14:17:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:32,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:32,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879680336] [2023-12-21 14:17:32,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879680336] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:32,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:32,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:32,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69587060] [2023-12-21 14:17:32,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:32,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:32,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:32,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:32,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:32,947 INFO L87 Difference]: Start difference. First operand 4161 states and 6464 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:33,005 INFO L93 Difference]: Finished difference Result 11845 states and 18434 transitions. [2023-12-21 14:17:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2023-12-21 14:17:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:33,031 INFO L225 Difference]: With dead ends: 11845 [2023-12-21 14:17:33,031 INFO L226 Difference]: Without dead ends: 7747 [2023-12-21 14:17:33,036 INFO L412 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 [2023-12-21 14:17:33,038 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 103 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:33,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 445 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7747 states. [2023-12-21 14:17:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7747 to 7745. [2023-12-21 14:17:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7745 states, 7744 states have (on average 1.5454545454545454) internal successors, (11968), 7744 states have internal predecessors, (11968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7745 states to 7745 states and 11968 transitions. [2023-12-21 14:17:33,187 INFO L78 Accepts]: Start accepts. Automaton has 7745 states and 11968 transitions. Word has length 106 [2023-12-21 14:17:33,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:33,187 INFO L495 AbstractCegarLoop]: Abstraction has 7745 states and 11968 transitions. [2023-12-21 14:17:33,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7745 states and 11968 transitions. [2023-12-21 14:17:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 14:17:33,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:33,188 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:33,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 14:17:33,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:33,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash -369340920, now seen corresponding path program 1 times [2023-12-21 14:17:33,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:33,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246831166] [2023-12-21 14:17:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:33,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246831166] [2023-12-21 14:17:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246831166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:33,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:33,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293649644] [2023-12-21 14:17:33,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:33,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:33,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:33,314 INFO L87 Difference]: Start difference. First operand 7745 states and 11968 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:33,408 INFO L93 Difference]: Finished difference Result 22085 states and 34114 transitions. [2023-12-21 14:17:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:33,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2023-12-21 14:17:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:33,464 INFO L225 Difference]: With dead ends: 22085 [2023-12-21 14:17:33,465 INFO L226 Difference]: Without dead ends: 14403 [2023-12-21 14:17:33,475 INFO L412 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 [2023-12-21 14:17:33,475 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 98 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:33,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14403 states. [2023-12-21 14:17:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14403 to 14401. [2023-12-21 14:17:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14400 states have (on average 1.5333333333333334) internal successors, (22080), 14400 states have internal predecessors, (22080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 22080 transitions. [2023-12-21 14:17:33,708 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 22080 transitions. Word has length 107 [2023-12-21 14:17:33,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:33,708 INFO L495 AbstractCegarLoop]: Abstraction has 14401 states and 22080 transitions. [2023-12-21 14:17:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 22080 transitions. [2023-12-21 14:17:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 14:17:33,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:33,709 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:33,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:17:33,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:33,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash 47272354, now seen corresponding path program 1 times [2023-12-21 14:17:33,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:33,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773293671] [2023-12-21 14:17:33,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:33,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:33,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:33,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773293671] [2023-12-21 14:17:33,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773293671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:33,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:17:33,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053147709] [2023-12-21 14:17:33,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:33,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:17:33,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:33,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:17:33,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:17:33,952 INFO L87 Difference]: Start difference. First operand 14401 states and 22080 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:35,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:35,172 INFO L93 Difference]: Finished difference Result 243809 states and 374352 transitions. [2023-12-21 14:17:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 14:17:35,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2023-12-21 14:17:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:35,696 INFO L225 Difference]: With dead ends: 243809 [2023-12-21 14:17:35,697 INFO L226 Difference]: Without dead ends: 229471 [2023-12-21 14:17:35,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-21 14:17:35,787 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 2802 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:35,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 5342 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:35,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229471 states. [2023-12-21 14:17:37,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229471 to 28737. [2023-12-21 14:17:37,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.5167037861915367) internal successors, (43584), 28736 states have internal predecessors, (43584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:37,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 43584 transitions. [2023-12-21 14:17:37,692 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 43584 transitions. Word has length 108 [2023-12-21 14:17:37,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:37,692 INFO L495 AbstractCegarLoop]: Abstraction has 28737 states and 43584 transitions. [2023-12-21 14:17:37,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:37,692 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 43584 transitions. [2023-12-21 14:17:37,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 14:17:37,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:37,693 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:37,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:17:37,693 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:37,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1578245085, now seen corresponding path program 1 times [2023-12-21 14:17:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:37,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295526560] [2023-12-21 14:17:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:37,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:38,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295526560] [2023-12-21 14:17:38,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295526560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:38,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:17:38,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124665416] [2023-12-21 14:17:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:38,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:17:38,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:38,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:17:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:17:38,159 INFO L87 Difference]: Start difference. First operand 28737 states and 43584 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:38,702 INFO L93 Difference]: Finished difference Result 57413 states and 87106 transitions. [2023-12-21 14:17:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:17:38,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2023-12-21 14:17:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:38,734 INFO L225 Difference]: With dead ends: 57413 [2023-12-21 14:17:38,734 INFO L226 Difference]: Without dead ends: 28739 [2023-12-21 14:17:38,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:17:38,757 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 796 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:38,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1178 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:38,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28739 states. [2023-12-21 14:17:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28739 to 28737. [2023-12-21 14:17:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28737 states, 28736 states have (on average 1.5077951002227172) internal successors, (43328), 28736 states have internal predecessors, (43328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28737 states to 28737 states and 43328 transitions. [2023-12-21 14:17:39,244 INFO L78 Accepts]: Start accepts. Automaton has 28737 states and 43328 transitions. Word has length 110 [2023-12-21 14:17:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:39,245 INFO L495 AbstractCegarLoop]: Abstraction has 28737 states and 43328 transitions. [2023-12-21 14:17:39,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 28737 states and 43328 transitions. [2023-12-21 14:17:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 14:17:39,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:39,246 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:17:39,246 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:39,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1557242430, now seen corresponding path program 1 times [2023-12-21 14:17:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:39,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534599231] [2023-12-21 14:17:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:39,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:39,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:39,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534599231] [2023-12-21 14:17:39,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534599231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:39,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:39,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:17:39,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930412153] [2023-12-21 14:17:39,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:39,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:17:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:39,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:17:39,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:17:39,311 INFO L87 Difference]: Start difference. First operand 28737 states and 43328 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:39,440 INFO L93 Difference]: Finished difference Result 71367 states and 107588 transitions. [2023-12-21 14:17:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:17:39,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2023-12-21 14:17:39,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:39,483 INFO L225 Difference]: With dead ends: 71367 [2023-12-21 14:17:39,484 INFO L226 Difference]: Without dead ends: 42693 [2023-12-21 14:17:39,509 INFO L412 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 [2023-12-21 14:17:39,510 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 89 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:39,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 398 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42693 states. [2023-12-21 14:17:39,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42693 to 42691. [2023-12-21 14:17:39,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42691 states, 42690 states have (on average 1.4977278051065823) internal successors, (63938), 42690 states have internal predecessors, (63938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42691 states to 42691 states and 63938 transitions. [2023-12-21 14:17:40,200 INFO L78 Accepts]: Start accepts. Automaton has 42691 states and 63938 transitions. Word has length 110 [2023-12-21 14:17:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:40,201 INFO L495 AbstractCegarLoop]: Abstraction has 42691 states and 63938 transitions. [2023-12-21 14:17:40,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 42691 states and 63938 transitions. [2023-12-21 14:17:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:40,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:40,202 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:40,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:17:40,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:40,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1679048153, now seen corresponding path program 1 times [2023-12-21 14:17:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122815349] [2023-12-21 14:17:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:40,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122815349] [2023-12-21 14:17:40,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122815349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:40,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:40,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:40,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486236681] [2023-12-21 14:17:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:40,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:40,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:40,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:40,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:40,295 INFO L87 Difference]: Start difference. First operand 42691 states and 63938 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:40,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:40,521 INFO L93 Difference]: Finished difference Result 85317 states and 127811 transitions. [2023-12-21 14:17:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:40,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:40,571 INFO L225 Difference]: With dead ends: 85317 [2023-12-21 14:17:40,572 INFO L226 Difference]: Without dead ends: 42691 [2023-12-21 14:17:40,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:40,610 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 517 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:40,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 147 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42691 states. [2023-12-21 14:17:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42691 to 42691. [2023-12-21 14:17:41,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42691 states, 42690 states have (on average 1.4887327242914032) internal successors, (63554), 42690 states have internal predecessors, (63554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42691 states to 42691 states and 63554 transitions. [2023-12-21 14:17:41,284 INFO L78 Accepts]: Start accepts. Automaton has 42691 states and 63554 transitions. Word has length 111 [2023-12-21 14:17:41,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:41,284 INFO L495 AbstractCegarLoop]: Abstraction has 42691 states and 63554 transitions. [2023-12-21 14:17:41,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 42691 states and 63554 transitions. [2023-12-21 14:17:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:41,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:41,285 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:41,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:17:41,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:41,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash -62368962, now seen corresponding path program 1 times [2023-12-21 14:17:41,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:41,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671753434] [2023-12-21 14:17:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:41,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:41,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:41,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671753434] [2023-12-21 14:17:41,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671753434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:41,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:41,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:41,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768534937] [2023-12-21 14:17:41,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:41,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:41,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:41,390 INFO L87 Difference]: Start difference. First operand 42691 states and 63554 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:41,721 INFO L93 Difference]: Finished difference Result 113991 states and 170052 transitions. [2023-12-21 14:17:41,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:41,796 INFO L225 Difference]: With dead ends: 113991 [2023-12-21 14:17:41,796 INFO L226 Difference]: Without dead ends: 71365 [2023-12-21 14:17:41,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:41,833 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 823 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:41,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 205 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:41,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71365 states. [2023-12-21 14:17:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71365 to 71363. [2023-12-21 14:17:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4860850312491243) internal successors, (106050), 71362 states have internal predecessors, (106050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 106050 transitions. [2023-12-21 14:17:42,806 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 106050 transitions. Word has length 111 [2023-12-21 14:17:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:42,807 INFO L495 AbstractCegarLoop]: Abstraction has 71363 states and 106050 transitions. [2023-12-21 14:17:42,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 106050 transitions. [2023-12-21 14:17:42,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:42,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:42,808 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:42,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:17:42,808 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:42,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1684057699, now seen corresponding path program 1 times [2023-12-21 14:17:42,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:42,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408808791] [2023-12-21 14:17:42,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:42,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:42,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:42,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408808791] [2023-12-21 14:17:42,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408808791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:42,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:42,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:42,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009174005] [2023-12-21 14:17:42,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:42,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:42,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:42,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:42,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:42,895 INFO L87 Difference]: Start difference. First operand 71363 states and 106050 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:43,368 INFO L93 Difference]: Finished difference Result 142661 states and 212035 transitions. [2023-12-21 14:17:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:43,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:43,446 INFO L225 Difference]: With dead ends: 142661 [2023-12-21 14:17:43,447 INFO L226 Difference]: Without dead ends: 71363 [2023-12-21 14:17:43,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:43,493 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 475 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:43,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 171 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:17:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2023-12-21 14:17:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2023-12-21 14:17:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4771166727389928) internal successors, (105410), 71362 states have internal predecessors, (105410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:44,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 105410 transitions. [2023-12-21 14:17:44,598 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 105410 transitions. Word has length 111 [2023-12-21 14:17:44,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:44,598 INFO L495 AbstractCegarLoop]: Abstraction has 71363 states and 105410 transitions. [2023-12-21 14:17:44,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:44,599 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 105410 transitions. [2023-12-21 14:17:44,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:44,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:44,599 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:44,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:17:44,599 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:44,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1812143006, now seen corresponding path program 1 times [2023-12-21 14:17:44,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:44,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833914626] [2023-12-21 14:17:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:44,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833914626] [2023-12-21 14:17:44,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833914626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:44,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:44,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797784323] [2023-12-21 14:17:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:44,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:44,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:44,685 INFO L87 Difference]: Start difference. First operand 71363 states and 105410 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:45,241 INFO L93 Difference]: Finished difference Result 142661 states and 210755 transitions. [2023-12-21 14:17:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:45,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:45,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:45,335 INFO L225 Difference]: With dead ends: 142661 [2023-12-21 14:17:45,335 INFO L226 Difference]: Without dead ends: 71363 [2023-12-21 14:17:45,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:45,368 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 498 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 155 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2023-12-21 14:17:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2023-12-21 14:17:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4681483142288614) internal successors, (104770), 71362 states have internal predecessors, (104770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 104770 transitions. [2023-12-21 14:17:46,251 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 104770 transitions. Word has length 111 [2023-12-21 14:17:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:46,251 INFO L495 AbstractCegarLoop]: Abstraction has 71363 states and 104770 transitions. [2023-12-21 14:17:46,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 104770 transitions. [2023-12-21 14:17:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:46,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:46,252 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:46,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 14:17:46,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:46,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2114553063, now seen corresponding path program 1 times [2023-12-21 14:17:46,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:46,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826138971] [2023-12-21 14:17:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:46,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:46,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826138971] [2023-12-21 14:17:46,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826138971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:46,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:46,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402711276] [2023-12-21 14:17:46,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:46,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:46,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:46,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:46,323 INFO L87 Difference]: Start difference. First operand 71363 states and 104770 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:46,819 INFO L93 Difference]: Finished difference Result 142661 states and 209475 transitions. [2023-12-21 14:17:46,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:46,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:46,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:46,897 INFO L225 Difference]: With dead ends: 142661 [2023-12-21 14:17:46,897 INFO L226 Difference]: Without dead ends: 71363 [2023-12-21 14:17:46,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:46,932 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 521 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:46,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 139 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2023-12-21 14:17:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2023-12-21 14:17:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.45917995571873) internal successors, (104130), 71362 states have internal predecessors, (104130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 104130 transitions. [2023-12-21 14:17:47,956 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 104130 transitions. Word has length 111 [2023-12-21 14:17:47,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:47,957 INFO L495 AbstractCegarLoop]: Abstraction has 71363 states and 104130 transitions. [2023-12-21 14:17:47,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:47,957 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 104130 transitions. [2023-12-21 14:17:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:47,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:47,957 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:47,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 14:17:47,957 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:47,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1818295508, now seen corresponding path program 1 times [2023-12-21 14:17:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:47,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223183040] [2023-12-21 14:17:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:48,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:48,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223183040] [2023-12-21 14:17:48,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223183040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:48,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:48,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 14:17:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958519237] [2023-12-21 14:17:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:48,031 INFO L87 Difference]: Start difference. First operand 71363 states and 104130 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:48,376 INFO L93 Difference]: Finished difference Result 142661 states and 208195 transitions. [2023-12-21 14:17:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 14:17:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:48,636 INFO L225 Difference]: With dead ends: 142661 [2023-12-21 14:17:48,637 INFO L226 Difference]: Without dead ends: 71363 [2023-12-21 14:17:48,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:17:48,667 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 440 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:48,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 187 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71363 states. [2023-12-21 14:17:49,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71363 to 71363. [2023-12-21 14:17:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71363 states, 71362 states have (on average 1.4502115972085985) internal successors, (103490), 71362 states have internal predecessors, (103490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71363 states to 71363 states and 103490 transitions. [2023-12-21 14:17:49,532 INFO L78 Accepts]: Start accepts. Automaton has 71363 states and 103490 transitions. Word has length 111 [2023-12-21 14:17:49,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:49,533 INFO L495 AbstractCegarLoop]: Abstraction has 71363 states and 103490 transitions. [2023-12-21 14:17:49,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 71363 states and 103490 transitions. [2023-12-21 14:17:49,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 14:17:49,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:49,534 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:49,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 14:17:49,534 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:49,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1289005007, now seen corresponding path program 1 times [2023-12-21 14:17:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:49,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38787919] [2023-12-21 14:17:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:17:49,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:49,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38787919] [2023-12-21 14:17:49,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38787919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:49,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:49,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 14:17:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498291902] [2023-12-21 14:17:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:49,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 14:17:49,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:49,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 14:17:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 14:17:49,945 INFO L87 Difference]: Start difference. First operand 71363 states and 103490 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:50,230 INFO L93 Difference]: Finished difference Result 135677 states and 196158 transitions. [2023-12-21 14:17:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 14:17:50,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-21 14:17:50,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:50,396 INFO L225 Difference]: With dead ends: 135677 [2023-12-21 14:17:50,396 INFO L226 Difference]: Without dead ends: 135675 [2023-12-21 14:17:50,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:17:50,436 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 260 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:50,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 912 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 14:17:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135675 states. [2023-12-21 14:17:51,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135675 to 73411. [2023-12-21 14:17:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73411 states, 73410 states have (on average 1.4359079144530718) internal successors, (105410), 73410 states have internal predecessors, (105410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:51,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73411 states to 73411 states and 105410 transitions. [2023-12-21 14:17:51,830 INFO L78 Accepts]: Start accepts. Automaton has 73411 states and 105410 transitions. Word has length 111 [2023-12-21 14:17:51,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:51,831 INFO L495 AbstractCegarLoop]: Abstraction has 73411 states and 105410 transitions. [2023-12-21 14:17:51,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:51,831 INFO L276 IsEmpty]: Start isEmpty. Operand 73411 states and 105410 transitions. [2023-12-21 14:17:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:17:51,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:51,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 14:17:51,845 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:51,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash -558287503, now seen corresponding path program 1 times [2023-12-21 14:17:51,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:51,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129769961] [2023-12-21 14:17:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:51,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:52,064 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 14:17:52,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:52,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129769961] [2023-12-21 14:17:52,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129769961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:52,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:52,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:17:52,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540311829] [2023-12-21 14:17:52,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:52,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:17:52,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:52,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:17:52,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:17:52,067 INFO L87 Difference]: Start difference. First operand 73411 states and 105410 transitions. Second operand has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:17:53,794 INFO L93 Difference]: Finished difference Result 682965 states and 980363 transitions. [2023-12-21 14:17:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:17:53,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:17:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:17:54,926 INFO L225 Difference]: With dead ends: 682965 [2023-12-21 14:17:54,927 INFO L226 Difference]: Without dead ends: 609619 [2023-12-21 14:17:55,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:17:55,018 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 2294 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:17:55,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2294 Valid, 2838 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:17:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609619 states. [2023-12-21 14:17:58,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609619 to 146755. [2023-12-21 14:17:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146755 states, 146754 states have (on average 1.4317429167177727) internal successors, (210114), 146754 states have internal predecessors, (210114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146755 states to 146755 states and 210114 transitions. [2023-12-21 14:17:59,520 INFO L78 Accepts]: Start accepts. Automaton has 146755 states and 210114 transitions. Word has length 149 [2023-12-21 14:17:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:17:59,520 INFO L495 AbstractCegarLoop]: Abstraction has 146755 states and 210114 transitions. [2023-12-21 14:17:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:17:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 146755 states and 210114 transitions. [2023-12-21 14:17:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:17:59,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:17:59,558 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:17:59,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 14:17:59,558 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:17:59,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:17:59,559 INFO L85 PathProgramCache]: Analyzing trace with hash 508632567, now seen corresponding path program 1 times [2023-12-21 14:17:59,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:17:59,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796790118] [2023-12-21 14:17:59,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:17:59,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:17:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:17:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 14:17:59,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:17:59,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796790118] [2023-12-21 14:17:59,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796790118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:17:59,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:17:59,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:17:59,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447371064] [2023-12-21 14:17:59,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:17:59,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:17:59,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:17:59,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:17:59,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:17:59,736 INFO L87 Difference]: Start difference. First operand 146755 states and 210114 transitions. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:01,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:18:01,727 INFO L93 Difference]: Finished difference Result 756309 states and 1085067 transitions. [2023-12-21 14:18:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:18:01,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:18:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:18:03,033 INFO L225 Difference]: With dead ends: 756309 [2023-12-21 14:18:03,034 INFO L226 Difference]: Without dead ends: 682963 [2023-12-21 14:18:03,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:18:03,153 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 2351 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:18:03,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 2622 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:18:03,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682963 states. [2023-12-21 14:18:08,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682963 to 256835. [2023-12-21 14:18:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256835 states, 256834 states have (on average 1.427357748584689) internal successors, (366594), 256834 states have internal predecessors, (366594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256835 states to 256835 states and 366594 transitions. [2023-12-21 14:18:09,557 INFO L78 Accepts]: Start accepts. Automaton has 256835 states and 366594 transitions. Word has length 149 [2023-12-21 14:18:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:18:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 256835 states and 366594 transitions. [2023-12-21 14:18:09,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 256835 states and 366594 transitions. [2023-12-21 14:18:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:18:09,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:18:09,607 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:18:09,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 14:18:09,608 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:18:09,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:18:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2117606013, now seen corresponding path program 1 times [2023-12-21 14:18:09,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:18:09,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117264210] [2023-12-21 14:18:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:18:09,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:18:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:18:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 14:18:09,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:18:09,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117264210] [2023-12-21 14:18:09,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117264210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:18:09,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:18:09,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:18:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159511352] [2023-12-21 14:18:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:18:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:18:09,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:18:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:18:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:18:09,900 INFO L87 Difference]: Start difference. First operand 256835 states and 366594 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:18:12,842 INFO L93 Difference]: Finished difference Result 829653 states and 1189771 transitions. [2023-12-21 14:18:12,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:18:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:18:12,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:18:13,853 INFO L225 Difference]: With dead ends: 829653 [2023-12-21 14:18:13,853 INFO L226 Difference]: Without dead ends: 756307 [2023-12-21 14:18:13,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:18:13,931 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 2600 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:18:13,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 2669 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:18:14,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756307 states. [2023-12-21 14:18:20,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756307 to 330179. [2023-12-21 14:18:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330179 states, 330178 states have (on average 1.4274058235254923) internal successors, (471298), 330178 states have internal predecessors, (471298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330179 states to 330179 states and 471298 transitions. [2023-12-21 14:18:20,882 INFO L78 Accepts]: Start accepts. Automaton has 330179 states and 471298 transitions. Word has length 149 [2023-12-21 14:18:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:18:20,883 INFO L495 AbstractCegarLoop]: Abstraction has 330179 states and 471298 transitions. [2023-12-21 14:18:20,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 330179 states and 471298 transitions. [2023-12-21 14:18:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:18:20,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:18:20,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:18:20,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 14:18:20,904 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:18:20,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:18:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1606765327, now seen corresponding path program 1 times [2023-12-21 14:18:20,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:18:20,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632466550] [2023-12-21 14:18:20,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:18:20,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:18:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:18:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 14:18:21,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:18:21,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632466550] [2023-12-21 14:18:21,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632466550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:18:21,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:18:21,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:18:21,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667890924] [2023-12-21 14:18:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:18:21,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:18:21,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:18:21,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:18:21,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:18:21,457 INFO L87 Difference]: Start difference. First operand 330179 states and 471298 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:18:24,363 INFO L93 Difference]: Finished difference Result 902997 states and 1294475 transitions. [2023-12-21 14:18:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:18:24,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:18:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:18:25,664 INFO L225 Difference]: With dead ends: 902997 [2023-12-21 14:18:25,664 INFO L226 Difference]: Without dead ends: 829651 [2023-12-21 14:18:25,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:18:25,757 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2735 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:18:25,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2735 Valid, 2620 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:18:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829651 states. [2023-12-21 14:18:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829651 to 403523. [2023-12-21 14:18:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403523 states, 403522 states have (on average 1.427436422301634) internal successors, (576002), 403522 states have internal predecessors, (576002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403523 states to 403523 states and 576002 transitions. [2023-12-21 14:18:35,531 INFO L78 Accepts]: Start accepts. Automaton has 403523 states and 576002 transitions. Word has length 149 [2023-12-21 14:18:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:18:35,531 INFO L495 AbstractCegarLoop]: Abstraction has 403523 states and 576002 transitions. [2023-12-21 14:18:35,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 403523 states and 576002 transitions. [2023-12-21 14:18:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:18:35,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:18:35,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:18:35,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 14:18:35,569 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:18:35,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:18:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash 452819221, now seen corresponding path program 1 times [2023-12-21 14:18:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:18:35,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102537921] [2023-12-21 14:18:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:18:35,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:18:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:18:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 14:18:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:18:35,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102537921] [2023-12-21 14:18:35,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102537921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:18:35,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:18:35,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:18:35,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295944507] [2023-12-21 14:18:35,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:18:35,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:18:35,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:18:35,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:18:35,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:18:35,916 INFO L87 Difference]: Start difference. First operand 403523 states and 576002 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:18:39,410 INFO L93 Difference]: Finished difference Result 976341 states and 1399179 transitions. [2023-12-21 14:18:39,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:18:39,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:18:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:18:41,155 INFO L225 Difference]: With dead ends: 976341 [2023-12-21 14:18:41,155 INFO L226 Difference]: Without dead ends: 902995 [2023-12-21 14:18:41,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:18:41,289 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 2454 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:18:41,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 2686 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:18:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902995 states. [2023-12-21 14:18:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902995 to 476867. [2023-12-21 14:18:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476867 states, 476866 states have (on average 1.4274576086363884) internal successors, (680706), 476866 states have internal predecessors, (680706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476867 states to 476867 states and 680706 transitions. [2023-12-21 14:18:50,669 INFO L78 Accepts]: Start accepts. Automaton has 476867 states and 680706 transitions. Word has length 149 [2023-12-21 14:18:50,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:18:50,669 INFO L495 AbstractCegarLoop]: Abstraction has 476867 states and 680706 transitions. [2023-12-21 14:18:50,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 476867 states and 680706 transitions. [2023-12-21 14:18:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:18:50,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:18:50,688 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:18:50,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 14:18:50,688 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:18:50,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:18:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 748864649, now seen corresponding path program 1 times [2023-12-21 14:18:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:18:50,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925048749] [2023-12-21 14:18:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:18:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:18:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:18:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 14:18:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:18:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925048749] [2023-12-21 14:18:51,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925048749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:18:51,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:18:51,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:18:51,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912164965] [2023-12-21 14:18:51,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:18:51,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:18:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:18:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:18:51,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:18:51,325 INFO L87 Difference]: Start difference. First operand 476867 states and 680706 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:18:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:18:55,028 INFO L93 Difference]: Finished difference Result 1049685 states and 1503883 transitions. [2023-12-21 14:18:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:18:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:18:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:18:56,623 INFO L225 Difference]: With dead ends: 1049685 [2023-12-21 14:18:56,624 INFO L226 Difference]: Without dead ends: 976339 [2023-12-21 14:18:56,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:18:56,771 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 2206 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:18:56,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 2983 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:18:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976339 states. [2023-12-21 14:19:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976339 to 550211. [2023-12-21 14:19:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550211 states, 550210 states have (on average 1.4274731466167463) internal successors, (785410), 550210 states have internal predecessors, (785410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:07,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550211 states to 550211 states and 785410 transitions. [2023-12-21 14:19:07,661 INFO L78 Accepts]: Start accepts. Automaton has 550211 states and 785410 transitions. Word has length 149 [2023-12-21 14:19:07,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:19:07,661 INFO L495 AbstractCegarLoop]: Abstraction has 550211 states and 785410 transitions. [2023-12-21 14:19:07,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 550211 states and 785410 transitions. [2023-12-21 14:19:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:19:07,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:19:07,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:19:07,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 14:19:07,678 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:19:07,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:19:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash -142168579, now seen corresponding path program 1 times [2023-12-21 14:19:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:19:07,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567789712] [2023-12-21 14:19:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:19:07,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:19:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:19:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 14:19:08,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:19:08,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567789712] [2023-12-21 14:19:08,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567789712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:19:08,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:19:08,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:19:08,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737836089] [2023-12-21 14:19:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:19:08,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:19:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:19:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:19:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:19:08,141 INFO L87 Difference]: Start difference. First operand 550211 states and 785410 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:11,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:19:11,626 INFO L93 Difference]: Finished difference Result 1123029 states and 1608587 transitions. [2023-12-21 14:19:11,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:19:11,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:19:11,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:19:13,577 INFO L225 Difference]: With dead ends: 1123029 [2023-12-21 14:19:13,577 INFO L226 Difference]: Without dead ends: 1049683 [2023-12-21 14:19:13,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:19:13,746 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2188 mSDsluCounter, 2915 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2188 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:19:13,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2188 Valid, 3244 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:19:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049683 states. [2023-12-21 14:19:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049683 to 623555. [2023-12-21 14:19:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623555 states, 623554 states have (on average 1.4274850293639365) internal successors, (890114), 623554 states have internal predecessors, (890114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623555 states to 623555 states and 890114 transitions. [2023-12-21 14:19:26,443 INFO L78 Accepts]: Start accepts. Automaton has 623555 states and 890114 transitions. Word has length 149 [2023-12-21 14:19:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:19:26,443 INFO L495 AbstractCegarLoop]: Abstraction has 623555 states and 890114 transitions. [2023-12-21 14:19:26,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:26,443 INFO L276 IsEmpty]: Start isEmpty. Operand 623555 states and 890114 transitions. [2023-12-21 14:19:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 14:19:26,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:19:26,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:19:26,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 14:19:26,861 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:19:26,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:19:26,861 INFO L85 PathProgramCache]: Analyzing trace with hash -646908821, now seen corresponding path program 1 times [2023-12-21 14:19:26,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:19:26,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295646078] [2023-12-21 14:19:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:19:26,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:19:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:19:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 14:19:26,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:19:26,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295646078] [2023-12-21 14:19:26,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295646078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:19:26,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:19:26,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 14:19:26,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940585965] [2023-12-21 14:19:26,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:19:26,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:19:26,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:19:26,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:19:26,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-21 14:19:26,998 INFO L87 Difference]: Start difference. First operand 623555 states and 890114 transitions. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:19:30,834 INFO L93 Difference]: Finished difference Result 1168469 states and 1674123 transitions. [2023-12-21 14:19:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 14:19:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-21 14:19:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:19:33,481 INFO L225 Difference]: With dead ends: 1168469 [2023-12-21 14:19:33,481 INFO L226 Difference]: Without dead ends: 1109075 [2023-12-21 14:19:33,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:19:33,839 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2299 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:19:33,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2299 Valid, 3388 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:19:34,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109075 states. [2023-12-21 14:19:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109075 to 682947. [2023-12-21 14:19:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682947 states, 682946 states have (on average 1.428168552125644) internal successors, (975362), 682946 states have internal predecessors, (975362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682947 states to 682947 states and 975362 transitions. [2023-12-21 14:19:46,907 INFO L78 Accepts]: Start accepts. Automaton has 682947 states and 975362 transitions. Word has length 149 [2023-12-21 14:19:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:19:46,907 INFO L495 AbstractCegarLoop]: Abstraction has 682947 states and 975362 transitions. [2023-12-21 14:19:46,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 14:19:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 682947 states and 975362 transitions. [2023-12-21 14:19:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 14:19:46,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:19:46,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 14:19:46,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 14:19:46,937 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:19:46,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:19:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 800361650, now seen corresponding path program 1 times [2023-12-21 14:19:46,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:19:46,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373388476] [2023-12-21 14:19:46,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:19:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:19:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:19:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:19:47,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:19:47,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373388476] [2023-12-21 14:19:47,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373388476] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:19:47,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445313740] [2023-12-21 14:19:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:19:47,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:19:47,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:19:47,632 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) [2023-12-21 14:19:47,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 14:19:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:19:47,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 14:19:47,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:19:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:19:48,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:19:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 14:19:48,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445313740] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:19:48,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:19:48,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 21 [2023-12-21 14:19:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091182079] [2023-12-21 14:19:48,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:19:48,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 14:19:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:19:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 14:19:48,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:19:48,679 INFO L87 Difference]: Start difference. First operand 682947 states and 975362 transitions. Second operand has 21 states, 21 states have (on average 21.0) internal successors, (441), 21 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)