/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/combinations/Problem05_label43+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:36:29,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:36:29,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 00:36:29,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:36:29,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:36:29,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:36:29,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:36:29,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:36:29,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:36:29,657 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:36:29,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:36:29,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:36:29,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:36:29,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:36:29,660 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:36:29,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:36:29,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:36:29,660 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:36:29,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:36:29,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:36:29,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:36:29,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:36:29,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:36:29,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:36:29,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:36:29,662 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:36:29,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:36:29,662 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:36:29,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:36:29,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:36:29,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:36:29,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:36:29,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:36:29,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:36:29,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:36:29,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:36:29,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:36:29,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:36:29,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:36:29,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:36:29,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:36:29,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:36:29,879 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:36:29,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2023-12-16 00:36:31,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:36:31,570 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:36:31,571 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2023-12-16 00:36:31,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5423c05a6/c499cc2c71094a0c8d3f271e05591e82/FLAGbc19b2ffe [2023-12-16 00:36:31,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5423c05a6/c499cc2c71094a0c8d3f271e05591e82 [2023-12-16 00:36:31,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:36:31,662 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:36:31,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:36:31,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:36:31,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:36:31,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:36:31" (1/1) ... [2023-12-16 00:36:31,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657c3c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:31, skipping insertion in model container [2023-12-16 00:36:31,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:36:31" (1/1) ... [2023-12-16 00:36:31,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:36:33,192 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2023-12-16 00:36:33,214 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2023-12-16 00:36:33,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:36:33,462 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:36:34,050 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2023-12-16 00:36:34,054 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2023-12-16 00:36:34,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:36:34,128 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:36:34,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34 WrapperNode [2023-12-16 00:36:34,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:36:34,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:36:34,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:36:34,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:36:34,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,524 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2023-12-16 00:36:34,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:36:34,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:36:34,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:36:34,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:36:34,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,859 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]. [2023-12-16 00:36:34,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:34,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:36:35,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:36:35,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:36:35,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:36:35,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (1/1) ... [2023-12-16 00:36:35,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:36:35,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:36:35,445 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) [2023-12-16 00:36:35,448 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 [2023-12-16 00:36:35,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:36:35,483 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 00:36:35,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 00:36:35,484 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 00:36:35,484 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:36:35,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:36:35,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:36:35,723 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:36:35,725 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:36:41,630 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:36:41,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:36:41,693 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-16 00:36:41,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:36:41 BoogieIcfgContainer [2023-12-16 00:36:41,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:36:41,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:36:41,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:36:41,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:36:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:36:31" (1/3) ... [2023-12-16 00:36:41,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9321961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:36:41, skipping insertion in model container [2023-12-16 00:36:41,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:36:34" (2/3) ... [2023-12-16 00:36:41,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9321961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:36:41, skipping insertion in model container [2023-12-16 00:36:41,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:36:41" (3/3) ... [2023-12-16 00:36:41,699 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.c [2023-12-16 00:36:41,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:36:41,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 00:36:41,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:36:41,764 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;@7030f95f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:36:41,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 00:36:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 00:36:41,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:41,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:41,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:41,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:41,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1330018896, now seen corresponding path program 1 times [2023-12-16 00:36:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946350031] [2023-12-16 00:36:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:42,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:42,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946350031] [2023-12-16 00:36:42,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946350031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:42,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:42,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:36:42,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902818102] [2023-12-16 00:36:42,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:42,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:36:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:42,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:36:42,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:36:42,244 INFO L87 Difference]: Start difference. First operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:44,166 INFO L93 Difference]: Finished difference Result 5133 states and 9582 transitions. [2023-12-16 00:36:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:36:44,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:44,189 INFO L225 Difference]: With dead ends: 5133 [2023-12-16 00:36:44,189 INFO L226 Difference]: Without dead ends: 2635 [2023-12-16 00:36:44,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:36:44,199 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1058 mSDsluCounter, 12236 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 16519 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:44,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 16519 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:36:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-16 00:36:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-16 00:36:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8356387306753459) internal successors, (4512), 2461 states have internal predecessors, (4512), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:36:44,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4568 transitions. [2023-12-16 00:36:44,290 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4568 transitions. Word has length 172 [2023-12-16 00:36:44,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:44,290 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4568 transitions. [2023-12-16 00:36:44,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4568 transitions. [2023-12-16 00:36:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:44,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:44,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:44,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:36:44,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:44,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:44,295 INFO L85 PathProgramCache]: Analyzing trace with hash 831462094, now seen corresponding path program 1 times [2023-12-16 00:36:44,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663673189] [2023-12-16 00:36:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:44,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663673189] [2023-12-16 00:36:44,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663673189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:44,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:44,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 00:36:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677160370] [2023-12-16 00:36:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:44,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 00:36:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:44,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 00:36:44,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 00:36:44,501 INFO L87 Difference]: Start difference. First operand 2495 states and 4568 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:46,447 INFO L93 Difference]: Finished difference Result 2994 states and 5402 transitions. [2023-12-16 00:36:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 00:36:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:46,457 INFO L225 Difference]: With dead ends: 2994 [2023-12-16 00:36:46,457 INFO L226 Difference]: Without dead ends: 2635 [2023-12-16 00:36:46,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 00:36:46,460 INFO L413 NwaCegarLoop]: 4279 mSDtfsCounter, 1046 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 16506 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:46,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 16506 Invalid, 1200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 00:36:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-16 00:36:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-16 00:36:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8352318958502847) internal successors, (4511), 2461 states have internal predecessors, (4511), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 00:36:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4567 transitions. [2023-12-16 00:36:46,511 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4567 transitions. Word has length 172 [2023-12-16 00:36:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:46,512 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4567 transitions. [2023-12-16 00:36:46,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:46,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4567 transitions. [2023-12-16 00:36:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:46,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:46,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:46,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:36:46,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:46,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:46,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1694033588, now seen corresponding path program 1 times [2023-12-16 00:36:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:46,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631684792] [2023-12-16 00:36:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:46,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:46,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631684792] [2023-12-16 00:36:46,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631684792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:46,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:46,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 00:36:46,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174378868] [2023-12-16 00:36:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:46,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:36:46,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:46,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:36:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:36:46,930 INFO L87 Difference]: Start difference. First operand 2495 states and 4567 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:50,169 INFO L93 Difference]: Finished difference Result 3506 states and 6263 transitions. [2023-12-16 00:36:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:36:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:50,180 INFO L225 Difference]: With dead ends: 3506 [2023-12-16 00:36:50,180 INFO L226 Difference]: Without dead ends: 3151 [2023-12-16 00:36:50,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:36:50,182 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5554 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5574 SdHoareTripleChecker+Valid, 16975 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:50,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 16975 Invalid, 2591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:36:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2023-12-16 00:36:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2870. [2023-12-16 00:36:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2804 states have (on average 1.8131241084165477) internal successors, (5084), 2808 states have internal predecessors, (5084), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-16 00:36:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5187 transitions. [2023-12-16 00:36:50,278 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5187 transitions. Word has length 172 [2023-12-16 00:36:50,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:50,279 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 5187 transitions. [2023-12-16 00:36:50,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5187 transitions. [2023-12-16 00:36:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:50,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:50,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:50,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:36:50,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:50,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash -688928312, now seen corresponding path program 1 times [2023-12-16 00:36:50,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:50,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476449950] [2023-12-16 00:36:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:50,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:50,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:50,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476449950] [2023-12-16 00:36:50,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476449950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:50,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:50,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:36:50,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743589029] [2023-12-16 00:36:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:50,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:36:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:36:50,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:36:50,666 INFO L87 Difference]: Start difference. First operand 2870 states and 5187 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:54,987 INFO L93 Difference]: Finished difference Result 4417 states and 7785 transitions. [2023-12-16 00:36:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:36:55,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:55,015 INFO L225 Difference]: With dead ends: 4417 [2023-12-16 00:36:55,016 INFO L226 Difference]: Without dead ends: 3687 [2023-12-16 00:36:55,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:36:55,020 INFO L413 NwaCegarLoop]: 4463 mSDtfsCounter, 5601 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 21973 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:55,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 21973 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 00:36:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-16 00:36:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3216. [2023-12-16 00:36:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.793976289650753) internal successors, (5599), 3126 states have internal predecessors, (5599), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:36:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5748 transitions. [2023-12-16 00:36:55,097 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5748 transitions. Word has length 172 [2023-12-16 00:36:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:55,098 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5748 transitions. [2023-12-16 00:36:55,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5748 transitions. [2023-12-16 00:36:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:55,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:55,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:55,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:36:55,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:55,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash -303065910, now seen corresponding path program 1 times [2023-12-16 00:36:55,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:55,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569764037] [2023-12-16 00:36:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:55,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:55,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569764037] [2023-12-16 00:36:55,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569764037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:55,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:55,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:36:55,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089159745] [2023-12-16 00:36:55,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:55,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:36:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:36:55,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:36:55,310 INFO L87 Difference]: Start difference. First operand 3216 states and 5748 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:57,127 INFO L93 Difference]: Finished difference Result 4781 states and 8390 transitions. [2023-12-16 00:36:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:36:57,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:57,139 INFO L225 Difference]: With dead ends: 4781 [2023-12-16 00:36:57,140 INFO L226 Difference]: Without dead ends: 3705 [2023-12-16 00:36:57,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:36:57,144 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5289 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:57,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 16772 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:36:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2023-12-16 00:36:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3216. [2023-12-16 00:36:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7930150592758731) internal successors, (5596), 3126 states have internal predecessors, (5596), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:36:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5745 transitions. [2023-12-16 00:36:57,218 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5745 transitions. Word has length 172 [2023-12-16 00:36:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:57,218 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5745 transitions. [2023-12-16 00:36:57,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5745 transitions. [2023-12-16 00:36:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:57,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:57,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:57,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:36:57,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:57,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1628059724, now seen corresponding path program 1 times [2023-12-16 00:36:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:57,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012249756] [2023-12-16 00:36:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:57,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:57,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:57,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012249756] [2023-12-16 00:36:57,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012249756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:57,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:57,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:36:57,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922264223] [2023-12-16 00:36:57,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:57,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:36:57,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:57,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:36:57,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:36:57,463 INFO L87 Difference]: Start difference. First operand 3216 states and 5745 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:59,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:36:59,462 INFO L93 Difference]: Finished difference Result 4777 states and 8373 transitions. [2023-12-16 00:36:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:36:59,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:36:59,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:36:59,474 INFO L225 Difference]: With dead ends: 4777 [2023-12-16 00:36:59,474 INFO L226 Difference]: Without dead ends: 3701 [2023-12-16 00:36:59,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:36:59,481 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5123 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:36:59,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 20907 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 00:36:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2023-12-16 00:36:59,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3216. [2023-12-16 00:36:59,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7920538289009933) internal successors, (5593), 3126 states have internal predecessors, (5593), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:36:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5742 transitions. [2023-12-16 00:36:59,577 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5742 transitions. Word has length 172 [2023-12-16 00:36:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:36:59,578 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5742 transitions. [2023-12-16 00:36:59,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:36:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5742 transitions. [2023-12-16 00:36:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:36:59,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:36:59,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:36:59,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:36:59,580 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:36:59,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:36:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash 304880778, now seen corresponding path program 1 times [2023-12-16 00:36:59,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:36:59,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311149032] [2023-12-16 00:36:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:36:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:36:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:36:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:36:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:36:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:36:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:36:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:36:59,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:36:59,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:36:59,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311149032] [2023-12-16 00:36:59,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311149032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:36:59,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:36:59,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:36:59,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828873759] [2023-12-16 00:36:59,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:36:59,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:36:59,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:36:59,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:36:59,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:36:59,825 INFO L87 Difference]: Start difference. First operand 3216 states and 5742 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:01,710 INFO L93 Difference]: Finished difference Result 4773 states and 8356 transitions. [2023-12-16 00:37:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:37:01,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:01,721 INFO L225 Difference]: With dead ends: 4773 [2023-12-16 00:37:01,721 INFO L226 Difference]: Without dead ends: 3697 [2023-12-16 00:37:01,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:37:01,724 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5121 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:01,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 20907 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 00:37:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2023-12-16 00:37:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3216. [2023-12-16 00:37:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7910925985261135) internal successors, (5590), 3126 states have internal predecessors, (5590), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-16 00:37:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5739 transitions. [2023-12-16 00:37:01,783 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5739 transitions. Word has length 172 [2023-12-16 00:37:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:01,783 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5739 transitions. [2023-12-16 00:37:01,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5739 transitions. [2023-12-16 00:37:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:01,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:01,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:01,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:37:01,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:01,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2093107060, now seen corresponding path program 1 times [2023-12-16 00:37:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:01,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372531207] [2023-12-16 00:37:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:01,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:01,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:01,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372531207] [2023-12-16 00:37:01,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372531207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:01,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724853494] [2023-12-16 00:37:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:01,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:01,976 INFO L87 Difference]: Start difference. First operand 3216 states and 5739 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:05,258 INFO L93 Difference]: Finished difference Result 5739 states and 9934 transitions. [2023-12-16 00:37:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:37:05,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:05,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:05,274 INFO L225 Difference]: With dead ends: 5739 [2023-12-16 00:37:05,274 INFO L226 Difference]: Without dead ends: 4663 [2023-12-16 00:37:05,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:37:05,279 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 5686 mSDsluCounter, 16947 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:05,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 21201 Invalid, 3374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:37:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2023-12-16 00:37:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 3921. [2023-12-16 00:37:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7603503184713376) internal successors, (6633), 3775 states have internal predecessors, (6633), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:37:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6878 transitions. [2023-12-16 00:37:05,371 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6878 transitions. Word has length 172 [2023-12-16 00:37:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:05,373 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6878 transitions. [2023-12-16 00:37:05,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6878 transitions. [2023-12-16 00:37:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:05,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:05,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:05,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:37:05,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:05,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:05,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1754819510, now seen corresponding path program 1 times [2023-12-16 00:37:05,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:05,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967124649] [2023-12-16 00:37:05,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:05,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:05,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:05,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967124649] [2023-12-16 00:37:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967124649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:05,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:05,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:05,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018173705] [2023-12-16 00:37:05,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:05,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:05,575 INFO L87 Difference]: Start difference. First operand 3921 states and 6878 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:07,179 INFO L93 Difference]: Finished difference Result 6429 states and 11059 transitions. [2023-12-16 00:37:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:37:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:07,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:07,189 INFO L225 Difference]: With dead ends: 6429 [2023-12-16 00:37:07,189 INFO L226 Difference]: Without dead ends: 4648 [2023-12-16 00:37:07,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:37:07,194 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5120 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:07,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 20907 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:37:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2023-12-16 00:37:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3921. [2023-12-16 00:37:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7590233545647558) internal successors, (6628), 3775 states have internal predecessors, (6628), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-16 00:37:07,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6873 transitions. [2023-12-16 00:37:07,281 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6873 transitions. Word has length 172 [2023-12-16 00:37:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:07,281 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6873 transitions. [2023-12-16 00:37:07,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6873 transitions. [2023-12-16 00:37:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:07,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:07,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:07,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:37:07,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:07,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1328265012, now seen corresponding path program 1 times [2023-12-16 00:37:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:07,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555460853] [2023-12-16 00:37:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:07,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:07,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:07,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:07,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555460853] [2023-12-16 00:37:07,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555460853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:07,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:07,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007703054] [2023-12-16 00:37:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:07,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:07,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:07,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:07,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:07,468 INFO L87 Difference]: Start difference. First operand 3921 states and 6873 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:10,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:10,952 INFO L93 Difference]: Finished difference Result 8298 states and 14097 transitions. [2023-12-16 00:37:10,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:37:10,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:10,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:10,980 INFO L225 Difference]: With dead ends: 8298 [2023-12-16 00:37:10,980 INFO L226 Difference]: Without dead ends: 6517 [2023-12-16 00:37:10,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:37:10,986 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5566 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5586 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:10,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5586 Valid, 21971 Invalid, 3947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:37:10,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2023-12-16 00:37:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 5331. [2023-12-16 00:37:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5062 states have (on average 1.7194784670090872) internal successors, (8704), 5073 states have internal predecessors, (8704), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-16 00:37:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 9147 transitions. [2023-12-16 00:37:11,118 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 9147 transitions. Word has length 172 [2023-12-16 00:37:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:11,118 INFO L495 AbstractCegarLoop]: Abstraction has 5331 states and 9147 transitions. [2023-12-16 00:37:11,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 9147 transitions. [2023-12-16 00:37:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:11,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:11,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:11,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 00:37:11,121 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:11,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:11,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1868694518, now seen corresponding path program 1 times [2023-12-16 00:37:11,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:11,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991959267] [2023-12-16 00:37:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:11,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:11,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:11,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991959267] [2023-12-16 00:37:11,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991959267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:11,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:11,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115029120] [2023-12-16 00:37:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:11,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:11,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:11,309 INFO L87 Difference]: Start difference. First operand 5331 states and 9147 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:14,919 INFO L93 Difference]: Finished difference Result 13422 states and 22477 transitions. [2023-12-16 00:37:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:37:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:14,978 INFO L225 Difference]: With dead ends: 13422 [2023-12-16 00:37:14,978 INFO L226 Difference]: Without dead ends: 10231 [2023-12-16 00:37:15,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:37:15,004 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5571 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:15,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 21971 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 00:37:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2023-12-16 00:37:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 8156. [2023-12-16 00:37:15,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.680209013716525) internal successors, (12862), 7674 states have internal predecessors, (12862), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:37:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13719 transitions. [2023-12-16 00:37:15,332 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13719 transitions. Word has length 172 [2023-12-16 00:37:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:15,332 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13719 transitions. [2023-12-16 00:37:15,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13719 transitions. [2023-12-16 00:37:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:15,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:15,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:15,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 00:37:15,336 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:15,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2024675060, now seen corresponding path program 1 times [2023-12-16 00:37:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240289376] [2023-12-16 00:37:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:15,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:15,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:15,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240289376] [2023-12-16 00:37:15,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240289376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:15,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:15,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646141431] [2023-12-16 00:37:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:15,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:15,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:15,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:15,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:15,530 INFO L87 Difference]: Start difference. First operand 8156 states and 13719 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:17,363 INFO L93 Difference]: Finished difference Result 16319 states and 27264 transitions. [2023-12-16 00:37:17,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:37:17,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:17,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:17,389 INFO L225 Difference]: With dead ends: 16319 [2023-12-16 00:37:17,390 INFO L226 Difference]: Without dead ends: 10303 [2023-12-16 00:37:17,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:37:17,406 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5288 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5309 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:17,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5309 Valid, 16772 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 00:37:17,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2023-12-16 00:37:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 8156. [2023-12-16 00:37:17,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6779882429784454) internal successors, (12845), 7674 states have internal predecessors, (12845), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:37:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13702 transitions. [2023-12-16 00:37:17,653 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13702 transitions. Word has length 172 [2023-12-16 00:37:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:17,654 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13702 transitions. [2023-12-16 00:37:17,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13702 transitions. [2023-12-16 00:37:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:17,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:17,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:17,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 00:37:17,658 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:17,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:17,658 INFO L85 PathProgramCache]: Analyzing trace with hash 482422414, now seen corresponding path program 1 times [2023-12-16 00:37:17,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:17,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195678789] [2023-12-16 00:37:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:17,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:17,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195678789] [2023-12-16 00:37:17,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195678789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:17,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:17,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:17,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506889469] [2023-12-16 00:37:17,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:17,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:17,852 INFO L87 Difference]: Start difference. First operand 8156 states and 13702 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:19,598 INFO L93 Difference]: Finished difference Result 16301 states and 27177 transitions. [2023-12-16 00:37:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 00:37:19,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:19,623 INFO L225 Difference]: With dead ends: 16301 [2023-12-16 00:37:19,623 INFO L226 Difference]: Without dead ends: 10285 [2023-12-16 00:37:19,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 00:37:19,639 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5286 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:19,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5307 Valid, 16772 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 00:37:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2023-12-16 00:37:19,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 8156. [2023-12-16 00:37:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6757674722403657) internal successors, (12828), 7674 states have internal predecessors, (12828), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-16 00:37:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13685 transitions. [2023-12-16 00:37:19,894 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13685 transitions. Word has length 172 [2023-12-16 00:37:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:19,894 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13685 transitions. [2023-12-16 00:37:19,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13685 transitions. [2023-12-16 00:37:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:19,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:19,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:19,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 00:37:19,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:19,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1653460788, now seen corresponding path program 1 times [2023-12-16 00:37:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319839109] [2023-12-16 00:37:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:20,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:20,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319839109] [2023-12-16 00:37:20,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319839109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:20,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:20,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:20,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529335095] [2023-12-16 00:37:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:20,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:20,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:20,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:20,133 INFO L87 Difference]: Start difference. First operand 8156 states and 13685 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:24,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:24,082 INFO L93 Difference]: Finished difference Result 23615 states and 39019 transitions. [2023-12-16 00:37:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 00:37:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:24,125 INFO L225 Difference]: With dead ends: 23615 [2023-12-16 00:37:24,125 INFO L226 Difference]: Without dead ends: 17599 [2023-12-16 00:37:24,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 00:37:24,140 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5552 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:24,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 21971 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 00:37:24,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17599 states. [2023-12-16 00:37:24,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17599 to 13872. [2023-12-16 00:37:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13872 states, 12907 states have (on average 1.642829472379329) internal successors, (21204), 12942 states have internal predecessors, (21204), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-16 00:37:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13872 states to 13872 states and 22943 transitions. [2023-12-16 00:37:24,587 INFO L78 Accepts]: Start accepts. Automaton has 13872 states and 22943 transitions. Word has length 172 [2023-12-16 00:37:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:37:24,588 INFO L495 AbstractCegarLoop]: Abstraction has 13872 states and 22943 transitions. [2023-12-16 00:37:24,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13872 states and 22943 transitions. [2023-12-16 00:37:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 00:37:24,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:37:24,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:24,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 00:37:24,597 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:37:24,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:37:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1583812914, now seen corresponding path program 1 times [2023-12-16 00:37:24,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:37:24,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333726018] [2023-12-16 00:37:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:37:24,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:37:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 00:37:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 00:37:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 00:37:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 00:37:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-16 00:37:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:37:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:37:24,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:37:24,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333726018] [2023-12-16 00:37:24,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333726018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:37:24,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:37:24,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 00:37:24,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349965633] [2023-12-16 00:37:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:37:24,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 00:37:24,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:37:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 00:37:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 00:37:24,810 INFO L87 Difference]: Start difference. First operand 13872 states and 22943 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 00:37:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:37:28,865 INFO L93 Difference]: Finished difference Result 49361 states and 81209 transitions. [2023-12-16 00:37:28,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 00:37:28,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-16 00:37:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:37:28,989 INFO L225 Difference]: With dead ends: 49361 [2023-12-16 00:37:28,989 INFO L226 Difference]: Without dead ends: 37629 [2023-12-16 00:37:29,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 00:37:29,029 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 6118 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 00:37:29,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6152 Valid, 21201 Invalid, 3283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 00:37:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37629 states. Received shutdown request... [2023-12-16 00:37:29,892 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 00:37:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37629 to 25265. [2023-12-16 00:37:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25265 states, 23404 states have (on average 1.6218595111946676) internal successors, (37958), 23471 states have internal predecessors, (37958), 1405 states have call successors, (1405), 391 states have call predecessors, (1405), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-16 00:37:30,042 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 00:37:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 00:37:30,043 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 00:37:30,044 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 00:37:30,046 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:37:30,047 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:37:30,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:37:30 BoogieIcfgContainer [2023-12-16 00:37:30,049 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:37:30,049 INFO L158 Benchmark]: Toolchain (without parser) took 58387.63ms. Allocated memory was 189.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 118.1MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 00:37:30,049 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:37:30,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2465.79ms. Allocated memory was 189.8MB in the beginning and 261.1MB in the end (delta: 71.3MB). Free memory was 117.6MB in the beginning and 102.5MB in the end (delta: 15.1MB). Peak memory consumption was 111.4MB. Max. memory is 8.0GB. [2023-12-16 00:37:30,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 394.72ms. Allocated memory is still 261.1MB. Free memory was 102.5MB in the beginning and 103.1MB in the end (delta: -524.3kB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. [2023-12-16 00:37:30,050 INFO L158 Benchmark]: Boogie Preprocessor took 847.46ms. Allocated memory was 261.1MB in the beginning and 522.2MB in the end (delta: 261.1MB). Free memory was 103.1MB in the beginning and 352.8MB in the end (delta: -249.8MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2023-12-16 00:37:30,050 INFO L158 Benchmark]: RCFGBuilder took 6319.95ms. Allocated memory was 522.2MB in the beginning and 1.4GB in the end (delta: 830.5MB). Free memory was 352.8MB in the beginning and 1.0GB in the end (delta: -681.2MB). Peak memory consumption was 274.7MB. Max. memory is 8.0GB. [2023-12-16 00:37:30,050 INFO L158 Benchmark]: TraceAbstraction took 48353.78ms. Allocated memory was 1.4GB in the beginning and 2.7GB in the end (delta: 1.3GB). Free memory was 1.0GB in the beginning and 2.1GB in the end (delta: -1.1GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 00:37:30,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2465.79ms. Allocated memory was 189.8MB in the beginning and 261.1MB in the end (delta: 71.3MB). Free memory was 117.6MB in the beginning and 102.5MB in the end (delta: 15.1MB). Peak memory consumption was 111.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 394.72ms. Allocated memory is still 261.1MB. Free memory was 102.5MB in the beginning and 103.1MB in the end (delta: -524.3kB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 847.46ms. Allocated memory was 261.1MB in the beginning and 522.2MB in the end (delta: 261.1MB). Free memory was 103.1MB in the beginning and 352.8MB in the end (delta: -249.8MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. * RCFGBuilder took 6319.95ms. Allocated memory was 522.2MB in the beginning and 1.4GB in the end (delta: 830.5MB). Free memory was 352.8MB in the beginning and 1.0GB in the end (delta: -681.2MB). Peak memory consumption was 274.7MB. Max. memory is 8.0GB. * TraceAbstraction took 48353.78ms. Allocated memory was 1.4GB in the beginning and 2.7GB in the end (delta: 1.3GB). Free memory was 1.0GB in the beginning and 2.1GB in the end (delta: -1.1GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 11118]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11118). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2500 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 48.3s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 41.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73309 SdHoareTripleChecker+Valid, 29.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72979 mSDsluCounter, 293325 SdHoareTripleChecker+Invalid, 25.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 228770 mSDsCounter, 1256 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38127 IncrementalHoareTripleChecker+Invalid, 39383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1256 mSolverCounterUnsat, 64555 mSDtfsCounter, 38127 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13872occurred in iteration=14, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 15220 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2580 NumberOfCodeBlocks, 2580 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2565 ConstructedInterpolants, 0 QuantifiedInterpolants, 7495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown