/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/systemc/token_ring.12.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 00:44:48,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 00:44:48,785 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 00:44:48,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 00:44:48,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 00:44:48,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 00:44:48,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 00:44:48,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 00:44:48,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 00:44:48,824 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 00:44:48,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 00:44:48,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 00:44:48,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 00:44:48,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 00:44:48,826 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 00:44:48,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 00:44:48,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 00:44:48,827 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 00:44:48,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 00:44:48,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 00:44:48,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 00:44:48,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 00:44:48,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 00:44:48,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 00:44:48,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 00:44:48,829 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 00:44:48,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 00:44:48,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 00:44:48,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 00:44:48,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 00:44:48,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 00:44:48,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 00:44:48,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:44:48,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 00:44:48,832 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 00:44:48,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 00:44:48,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 00:44:48,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 00:44:49,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 00:44:49,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 00:44:49,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 00:44:49,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 00:44:49,048 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 00:44:49,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.12.cil-1.c [2023-12-20 00:44:50,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 00:44:50,422 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 00:44:50,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.12.cil-1.c [2023-12-20 00:44:50,436 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d1e4a3/03c968fef8654f8f97054886f46f91db/FLAG0abdd3fbc [2023-12-20 00:44:50,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d1e4a3/03c968fef8654f8f97054886f46f91db [2023-12-20 00:44:50,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 00:44:50,449 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 00:44:50,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 00:44:50,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 00:44:50,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 00:44:50,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a54c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50, skipping insertion in model container [2023-12-20 00:44:50,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 00:44:50,620 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.12.cil-1.c[671,684] [2023-12-20 00:44:50,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:44:50,743 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 00:44:50,751 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.12.cil-1.c[671,684] [2023-12-20 00:44:50,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:44:50,859 INFO L206 MainTranslator]: Completed translation [2023-12-20 00:44:50,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50 WrapperNode [2023-12-20 00:44:50,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 00:44:50,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 00:44:50,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 00:44:50,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 00:44:50,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,925 INFO L138 Inliner]: procedures = 52, calls = 68, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 885 [2023-12-20 00:44:50,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 00:44:50,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 00:44:50,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 00:44:50,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 00:44:50,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,965 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]. [2023-12-20 00:44:50,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:50,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:51,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:51,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 00:44:51,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 00:44:51,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 00:44:51,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 00:44:51,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (1/1) ... [2023-12-20 00:44:51,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:44:51,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:44:51,069 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) [2023-12-20 00:44:51,090 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 [2023-12-20 00:44:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 00:44:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 00:44:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 00:44:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 00:44:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 00:44:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 00:44:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 00:44:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-20 00:44:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-20 00:44:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 00:44:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 00:44:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 00:44:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 00:44:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 00:44:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 00:44:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 00:44:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 00:44:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 00:44:51,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 00:44:51,249 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 00:44:51,949 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 00:44:52,017 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 00:44:52,018 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-12-20 00:44:52,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:44:52 BoogieIcfgContainer [2023-12-20 00:44:52,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 00:44:52,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 00:44:52,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 00:44:52,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 00:44:52,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 12:44:50" (1/3) ... [2023-12-20 00:44:52,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b823cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:44:52, skipping insertion in model container [2023-12-20 00:44:52,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:44:50" (2/3) ... [2023-12-20 00:44:52,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b823cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:44:52, skipping insertion in model container [2023-12-20 00:44:52,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:44:52" (3/3) ... [2023-12-20 00:44:52,025 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.12.cil-1.c [2023-12-20 00:44:52,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 00:44:52,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 00:44:52,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 00:44:52,088 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;@387e3e7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 00:44:52,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 00:44:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 319 states have (on average 1.7398119122257054) internal successors, (555), 323 states have internal predecessors, (555), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-20 00:44:52,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:44:52,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:52,109 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] [2023-12-20 00:44:52,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:52,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 894378514, now seen corresponding path program 1 times [2023-12-20 00:44:52,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77880080] [2023-12-20 00:44:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:52,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:44:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:44:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:44:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:44:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:52,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:52,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77880080] [2023-12-20 00:44:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77880080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:44:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269719620] [2023-12-20 00:44:52,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:52,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:44:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:44:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:44:52,742 INFO L87 Difference]: Start difference. First operand has 356 states, 319 states have (on average 1.7398119122257054) internal successors, (555), 323 states have internal predecessors, (555), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-12-20 00:44:54,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:54,782 INFO L93 Difference]: Finished difference Result 833 states and 1441 transitions. [2023-12-20 00:44:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:44:54,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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 161 [2023-12-20 00:44:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:54,797 INFO L225 Difference]: With dead ends: 833 [2023-12-20 00:44:54,798 INFO L226 Difference]: Without dead ends: 483 [2023-12-20 00:44:54,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:44:54,806 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 989 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:54,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 654 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 00:44:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-20 00:44:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 353. [2023-12-20 00:44:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 318 states have (on average 1.6383647798742138) internal successors, (521), 320 states have internal predecessors, (521), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-20 00:44:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 575 transitions. [2023-12-20 00:44:54,880 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 575 transitions. Word has length 161 [2023-12-20 00:44:54,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:54,881 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 575 transitions. [2023-12-20 00:44:54,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-12-20 00:44:54,881 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 575 transitions. [2023-12-20 00:44:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:44:54,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:54,885 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] [2023-12-20 00:44:54,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 00:44:54,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:54,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash -999955372, now seen corresponding path program 1 times [2023-12-20 00:44:54,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:54,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158785617] [2023-12-20 00:44:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:54,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:44:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:44:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:44:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:55,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:44:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158785617] [2023-12-20 00:44:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158785617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:55,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:55,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:44:55,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713533287] [2023-12-20 00:44:55,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:55,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:44:55,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:44:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:44:55,120 INFO L87 Difference]: Start difference. First operand 353 states and 575 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-12-20 00:44:56,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:44:56,713 INFO L93 Difference]: Finished difference Result 820 states and 1354 transitions. [2023-12-20 00:44:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:44:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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 161 [2023-12-20 00:44:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:44:56,717 INFO L225 Difference]: With dead ends: 820 [2023-12-20 00:44:56,718 INFO L226 Difference]: Without dead ends: 483 [2023-12-20 00:44:56,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:44:56,720 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 978 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:44:56,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 649 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 00:44:56,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-12-20 00:44:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 353. [2023-12-20 00:44:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 318 states have (on average 1.6352201257861636) internal successors, (520), 320 states have internal predecessors, (520), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-20 00:44:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 574 transitions. [2023-12-20 00:44:56,752 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 574 transitions. Word has length 161 [2023-12-20 00:44:56,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:44:56,752 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 574 transitions. [2023-12-20 00:44:56,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2023-12-20 00:44:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 574 transitions. [2023-12-20 00:44:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:44:56,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:44:56,763 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] [2023-12-20 00:44:56,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 00:44:56,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:44:56,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:44:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1338242922, now seen corresponding path program 1 times [2023-12-20 00:44:56,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:44:56,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931518702] [2023-12-20 00:44:56,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:44:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:44:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:44:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:44:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:44:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:44:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:44:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:44:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:44:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:44:57,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931518702] [2023-12-20 00:44:57,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931518702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:44:57,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:44:57,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:44:57,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531438984] [2023-12-20 00:44:57,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:44:57,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:44:57,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:44:57,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:44:57,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:44:57,114 INFO L87 Difference]: Start difference. First operand 353 states and 574 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-12-20 00:45:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:00,127 INFO L93 Difference]: Finished difference Result 1302 states and 2164 transitions. [2023-12-20 00:45:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 00:45:00,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:00,134 INFO L225 Difference]: With dead ends: 1302 [2023-12-20 00:45:00,134 INFO L226 Difference]: Without dead ends: 967 [2023-12-20 00:45:00,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:45:00,136 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1492 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:00,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1097 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 00:45:00,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-20 00:45:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 706. [2023-12-20 00:45:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 643 states have (on average 1.6454121306376361) internal successors, (1058), 646 states have internal predecessors, (1058), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2023-12-20 00:45:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1157 transitions. [2023-12-20 00:45:00,184 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1157 transitions. Word has length 161 [2023-12-20 00:45:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:00,185 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 1157 transitions. [2023-12-20 00:45:00,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-12-20 00:45:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1157 transitions. [2023-12-20 00:45:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:00,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:00,187 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] [2023-12-20 00:45:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 00:45:00,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:00,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash 751355990, now seen corresponding path program 1 times [2023-12-20 00:45:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:00,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129337274] [2023-12-20 00:45:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:00,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129337274] [2023-12-20 00:45:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129337274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:00,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:00,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:00,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519174287] [2023-12-20 00:45:00,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:00,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:00,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:00,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:00,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:00,472 INFO L87 Difference]: Start difference. First operand 706 states and 1157 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:04,378 INFO L93 Difference]: Finished difference Result 2157 states and 3590 transitions. [2023-12-20 00:45:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:04,385 INFO L225 Difference]: With dead ends: 2157 [2023-12-20 00:45:04,385 INFO L226 Difference]: Without dead ends: 1469 [2023-12-20 00:45:04,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:04,388 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1527 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3735 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 3800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:04,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 2097 Invalid, 3800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3735 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 00:45:04,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2023-12-20 00:45:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1032. [2023-12-20 00:45:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 941 states have (on average 1.638682252922423) internal successors, (1542), 945 states have internal predecessors, (1542), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2023-12-20 00:45:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1685 transitions. [2023-12-20 00:45:04,474 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1685 transitions. Word has length 161 [2023-12-20 00:45:04,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:04,474 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1685 transitions. [2023-12-20 00:45:04,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1685 transitions. [2023-12-20 00:45:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:04,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:04,477 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] [2023-12-20 00:45:04,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 00:45:04,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:04,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:04,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1161966356, now seen corresponding path program 1 times [2023-12-20 00:45:04,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:04,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164141344] [2023-12-20 00:45:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:04,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:04,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:04,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164141344] [2023-12-20 00:45:04,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164141344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:04,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:04,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5851782] [2023-12-20 00:45:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:04,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:04,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:04,799 INFO L87 Difference]: Start difference. First operand 1032 states and 1685 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:08,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:08,122 INFO L93 Difference]: Finished difference Result 3410 states and 5666 transitions. [2023-12-20 00:45:08,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:08,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:08,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:08,132 INFO L225 Difference]: With dead ends: 3410 [2023-12-20 00:45:08,132 INFO L226 Difference]: Without dead ends: 2396 [2023-12-20 00:45:08,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:08,136 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1639 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 3094 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:08,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 1354 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3094 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 00:45:08,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2023-12-20 00:45:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 1685. [2023-12-20 00:45:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1538 states have (on average 1.6326397919375812) internal successors, (2511), 1544 states have internal predecessors, (2511), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2023-12-20 00:45:08,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2746 transitions. [2023-12-20 00:45:08,207 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2746 transitions. Word has length 161 [2023-12-20 00:45:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:08,207 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 2746 transitions. [2023-12-20 00:45:08,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2746 transitions. [2023-12-20 00:45:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:08,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:08,210 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] [2023-12-20 00:45:08,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 00:45:08,210 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:08,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:08,210 INFO L85 PathProgramCache]: Analyzing trace with hash -625903466, now seen corresponding path program 1 times [2023-12-20 00:45:08,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:08,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279733084] [2023-12-20 00:45:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:08,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:08,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:08,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279733084] [2023-12-20 00:45:08,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279733084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:08,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:08,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:08,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112823216] [2023-12-20 00:45:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:08,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:08,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:08,470 INFO L87 Difference]: Start difference. First operand 1685 states and 2746 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:12,244 INFO L93 Difference]: Finished difference Result 5811 states and 9623 transitions. [2023-12-20 00:45:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:12,260 INFO L225 Difference]: With dead ends: 5811 [2023-12-20 00:45:12,261 INFO L226 Difference]: Without dead ends: 4144 [2023-12-20 00:45:12,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:12,265 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1525 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3724 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:12,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 2095 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3724 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-20 00:45:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2023-12-20 00:45:12,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 2992. [2023-12-20 00:45:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2733 states have (on average 1.62788144895719) internal successors, (4449), 2743 states have internal predecessors, (4449), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2023-12-20 00:45:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 4874 transitions. [2023-12-20 00:45:12,390 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 4874 transitions. Word has length 161 [2023-12-20 00:45:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:12,390 INFO L495 AbstractCegarLoop]: Abstraction has 2992 states and 4874 transitions. [2023-12-20 00:45:12,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 4874 transitions. [2023-12-20 00:45:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:12,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:12,393 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] [2023-12-20 00:45:12,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 00:45:12,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:12,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1533180628, now seen corresponding path program 1 times [2023-12-20 00:45:12,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:12,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410163903] [2023-12-20 00:45:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:12,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:12,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410163903] [2023-12-20 00:45:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410163903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:12,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:12,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:12,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749213778] [2023-12-20 00:45:12,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:12,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:12,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:12,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:12,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:12,673 INFO L87 Difference]: Start difference. First operand 2992 states and 4874 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:16,232 INFO L93 Difference]: Finished difference Result 10605 states and 17541 transitions. [2023-12-20 00:45:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:16,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:16,264 INFO L225 Difference]: With dead ends: 10605 [2023-12-20 00:45:16,265 INFO L226 Difference]: Without dead ends: 7631 [2023-12-20 00:45:16,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:16,275 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1521 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3696 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:16,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2095 Invalid, 3763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3696 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-20 00:45:16,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7631 states. [2023-12-20 00:45:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7631 to 5620. [2023-12-20 00:45:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 5137 states have (on average 1.6252676659528908) internal successors, (8349), 5155 states have internal predecessors, (8349), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2023-12-20 00:45:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 9172 transitions. [2023-12-20 00:45:16,572 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 9172 transitions. Word has length 161 [2023-12-20 00:45:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:16,572 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 9172 transitions. [2023-12-20 00:45:16,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 9172 transitions. [2023-12-20 00:45:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:16,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:16,577 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] [2023-12-20 00:45:16,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 00:45:16,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:16,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1951069330, now seen corresponding path program 1 times [2023-12-20 00:45:16,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451109906] [2023-12-20 00:45:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:16,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:16,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:16,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451109906] [2023-12-20 00:45:16,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451109906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:16,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:16,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:16,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798833272] [2023-12-20 00:45:16,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:16,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:16,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:16,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:16,849 INFO L87 Difference]: Start difference. First operand 5620 states and 9172 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:20,566 INFO L93 Difference]: Finished difference Result 20211 states and 33469 transitions. [2023-12-20 00:45:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:20,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:20,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:20,633 INFO L225 Difference]: With dead ends: 20211 [2023-12-20 00:45:20,633 INFO L226 Difference]: Without dead ends: 14609 [2023-12-20 00:45:20,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:20,654 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1520 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:20,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 2095 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 00:45:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14609 states. [2023-12-20 00:45:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14609 to 10889. [2023-12-20 00:45:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10889 states, 9958 states have (on average 1.6235187788712593) internal successors, (16167), 9992 states have internal predecessors, (16167), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2023-12-20 00:45:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10889 states to 10889 states and 17840 transitions. [2023-12-20 00:45:21,200 INFO L78 Accepts]: Start accepts. Automaton has 10889 states and 17840 transitions. Word has length 161 [2023-12-20 00:45:21,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:21,200 INFO L495 AbstractCegarLoop]: Abstraction has 10889 states and 17840 transitions. [2023-12-20 00:45:21,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 10889 states and 17840 transitions. [2023-12-20 00:45:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:21,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:21,208 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] [2023-12-20 00:45:21,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 00:45:21,209 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:21,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash -944944364, now seen corresponding path program 1 times [2023-12-20 00:45:21,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813623105] [2023-12-20 00:45:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:21,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813623105] [2023-12-20 00:45:21,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813623105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:21,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:21,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:21,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352562577] [2023-12-20 00:45:21,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:21,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:21,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:21,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:21,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:21,520 INFO L87 Difference]: Start difference. First operand 10889 states and 17840 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:25,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:25,459 INFO L93 Difference]: Finished difference Result 39422 states and 65515 transitions. [2023-12-20 00:45:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:25,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:25,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:25,565 INFO L225 Difference]: With dead ends: 39422 [2023-12-20 00:45:25,565 INFO L226 Difference]: Without dead ends: 28551 [2023-12-20 00:45:25,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:25,611 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1519 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3670 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:25,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 2095 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3670 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-20 00:45:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28551 states. [2023-12-20 00:45:26,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28551 to 21458. [2023-12-20 00:45:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21458 states, 19631 states have (on average 1.6223829657174877) internal successors, (31849), 19697 states have internal predecessors, (31849), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2023-12-20 00:45:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21458 states to 21458 states and 35384 transitions. [2023-12-20 00:45:26,725 INFO L78 Accepts]: Start accepts. Automaton has 21458 states and 35384 transitions. Word has length 161 [2023-12-20 00:45:26,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:26,726 INFO L495 AbstractCegarLoop]: Abstraction has 21458 states and 35384 transitions. [2023-12-20 00:45:26,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 21458 states and 35384 transitions. [2023-12-20 00:45:26,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:26,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:26,742 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] [2023-12-20 00:45:26,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 00:45:26,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:26,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1732582482, now seen corresponding path program 1 times [2023-12-20 00:45:26,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:26,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347134457] [2023-12-20 00:45:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:26,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:26,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:26,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347134457] [2023-12-20 00:45:26,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347134457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:26,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:26,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:26,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143514867] [2023-12-20 00:45:26,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:26,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:26,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:26,993 INFO L87 Difference]: Start difference. First operand 21458 states and 35384 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:31,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:31,653 INFO L93 Difference]: Finished difference Result 77845 states and 130209 transitions. [2023-12-20 00:45:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:31,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:31,989 INFO L225 Difference]: With dead ends: 77845 [2023-12-20 00:45:31,989 INFO L226 Difference]: Without dead ends: 56405 [2023-12-20 00:45:32,041 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 [2023-12-20 00:45:32,041 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1518 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3657 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:32,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 2095 Invalid, 3724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3657 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 00:45:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56405 states. [2023-12-20 00:45:33,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56405 to 42659. [2023-12-20 00:45:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42659 states, 39040 states have (on average 1.621593237704918) internal successors, (63307), 39170 states have internal predecessors, (63307), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2023-12-20 00:45:34,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42659 states to 42659 states and 71052 transitions. [2023-12-20 00:45:34,161 INFO L78 Accepts]: Start accepts. Automaton has 42659 states and 71052 transitions. Word has length 161 [2023-12-20 00:45:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:34,162 INFO L495 AbstractCegarLoop]: Abstraction has 42659 states and 71052 transitions. [2023-12-20 00:45:34,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 42659 states and 71052 transitions. [2023-12-20 00:45:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:34,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:34,187 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] [2023-12-20 00:45:34,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 00:45:34,188 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:34,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2096048980, now seen corresponding path program 1 times [2023-12-20 00:45:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:34,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121070851] [2023-12-20 00:45:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:34,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:34,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121070851] [2023-12-20 00:45:34,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121070851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:34,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:34,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:34,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150527845] [2023-12-20 00:45:34,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:34,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:34,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:34,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:34,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:34,435 INFO L87 Difference]: Start difference. First operand 42659 states and 71052 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:39,904 INFO L93 Difference]: Finished difference Result 154692 states and 261447 transitions. [2023-12-20 00:45:39,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:39,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:40,555 INFO L225 Difference]: With dead ends: 154692 [2023-12-20 00:45:40,555 INFO L226 Difference]: Without dead ends: 112051 [2023-12-20 00:45:40,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:45:40,736 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1517 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3644 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:40,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2095 Invalid, 3711 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [67 Valid, 3644 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 00:45:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112051 states. [2023-12-20 00:45:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112051 to 85188. [2023-12-20 00:45:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85188 states, 77985 states have (on average 1.620991216259537) internal successors, (126413), 78243 states have internal predecessors, (126413), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2023-12-20 00:45:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85188 states to 85188 states and 144036 transitions. [2023-12-20 00:45:44,749 INFO L78 Accepts]: Start accepts. Automaton has 85188 states and 144036 transitions. Word has length 161 [2023-12-20 00:45:44,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:45:44,750 INFO L495 AbstractCegarLoop]: Abstraction has 85188 states and 144036 transitions. [2023-12-20 00:45:44,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:44,750 INFO L276 IsEmpty]: Start isEmpty. Operand 85188 states and 144036 transitions. [2023-12-20 00:45:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:45:44,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:45:44,798 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] [2023-12-20 00:45:44,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 00:45:44,798 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:45:44,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:45:44,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1910098926, now seen corresponding path program 1 times [2023-12-20 00:45:44,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:45:44,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671036914] [2023-12-20 00:45:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:45:44,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:45:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:45:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:45:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:45,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:45:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:45:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:45:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:45:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:45:45,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:45:45,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671036914] [2023-12-20 00:45:45,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671036914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:45:45,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:45:45,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:45:45,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305410092] [2023-12-20 00:45:45,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:45:45,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:45:45,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:45:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:45:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:45:45,027 INFO L87 Difference]: Start difference. First operand 85188 states and 144036 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:45:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:45:52,963 INFO L93 Difference]: Finished difference Result 308387 states and 529565 transitions. [2023-12-20 00:45:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:45:52,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:45:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:45:54,056 INFO L225 Difference]: With dead ends: 308387 [2023-12-20 00:45:54,056 INFO L226 Difference]: Without dead ends: 223217 [2023-12-20 00:45:54,385 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 [2023-12-20 00:45:54,386 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1618 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:45:54,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 1354 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 00:45:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223217 states. [2023-12-20 00:46:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223217 to 170501. [2023-12-20 00:46:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170501 states, 156130 states have (on average 1.620489335809902) internal successors, (253007), 156644 states have internal predecessors, (253007), 10780 states have call successors, (10780), 3079 states have call predecessors, (10780), 3590 states have return successors, (30973), 11289 states have call predecessors, (30973), 10778 states have call successors, (30973) [2023-12-20 00:46:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170501 states to 170501 states and 294760 transitions. [2023-12-20 00:46:01,919 INFO L78 Accepts]: Start accepts. Automaton has 170501 states and 294760 transitions. Word has length 161 [2023-12-20 00:46:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:46:01,919 INFO L495 AbstractCegarLoop]: Abstraction has 170501 states and 294760 transitions. [2023-12-20 00:46:01,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:46:01,920 INFO L276 IsEmpty]: Start isEmpty. Operand 170501 states and 294760 transitions. [2023-12-20 00:46:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:46:02,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:46:02,007 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] [2023-12-20 00:46:02,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 00:46:02,007 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:46:02,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:46:02,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1839995796, now seen corresponding path program 1 times [2023-12-20 00:46:02,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:46:02,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101114687] [2023-12-20 00:46:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:46:02,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:46:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:46:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:46:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:46:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:46:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:46:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:46:02,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:46:02,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101114687] [2023-12-20 00:46:02,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101114687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:46:02,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:46:02,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:46:02,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529864813] [2023-12-20 00:46:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:46:02,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:46:02,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:46:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:46:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:46:02,241 INFO L87 Difference]: Start difference. First operand 170501 states and 294760 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:46:15,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:46:15,454 INFO L93 Difference]: Finished difference Result 615778 states and 1082915 transitions. [2023-12-20 00:46:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:46:15,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:46:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:46:17,792 INFO L225 Difference]: With dead ends: 615778 [2023-12-20 00:46:17,792 INFO L226 Difference]: Without dead ends: 445295 [2023-12-20 00:46:18,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:46:18,546 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1521 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 3613 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:46:18,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2095 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3613 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-20 00:46:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445295 states. [2023-12-20 00:46:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445295 to 341638. [2023-12-20 00:46:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341638 states, 312931 states have (on average 1.6200408396739217) internal successors, (506961), 313957 states have internal predecessors, (506961), 21532 states have call successors, (21532), 6151 states have call predecessors, (21532), 7174 states have return successors, (81603), 22553 states have call predecessors, (81603), 21530 states have call successors, (81603) [2023-12-20 00:46:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341638 states to 341638 states and 610096 transitions. [2023-12-20 00:46:34,786 INFO L78 Accepts]: Start accepts. Automaton has 341638 states and 610096 transitions. Word has length 161 [2023-12-20 00:46:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:46:34,787 INFO L495 AbstractCegarLoop]: Abstraction has 341638 states and 610096 transitions. [2023-12-20 00:46:34,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:46:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 341638 states and 610096 transitions. [2023-12-20 00:46:34,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-20 00:46:34,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:46:34,977 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] [2023-12-20 00:46:34,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 00:46:34,978 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:46:34,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:46:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1779811374, now seen corresponding path program 1 times [2023-12-20 00:46:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:46:34,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487028312] [2023-12-20 00:46:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:46:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:46:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:46:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 00:46:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-20 00:46:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 00:46:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 00:46:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:46:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:46:35,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:46:35,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487028312] [2023-12-20 00:46:35,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487028312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:46:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:46:35,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:46:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416230424] [2023-12-20 00:46:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:46:35,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:46:35,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:46:35,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:46:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:46:35,221 INFO L87 Difference]: Start difference. First operand 341638 states and 610096 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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) [2023-12-20 00:47:03,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:03,311 INFO L93 Difference]: Finished difference Result 1385183 states and 2492215 transitions. [2023-12-20 00:47:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:47:03,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 161 [2023-12-20 00:47:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:09,762 INFO L225 Difference]: With dead ends: 1385183 [2023-12-20 00:47:09,762 INFO L226 Difference]: Without dead ends: 1043563 [2023-12-20 00:47:11,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:47:11,482 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 1950 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 3646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:11,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 2088 Invalid, 3646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 00:47:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043563 states.