/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 11:38:47,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 11:38:47,504 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 11:38:47,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 11:38:47,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 11:38:47,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 11:38:47,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 11:38:47,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 11:38:47,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 11:38:47,539 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 11:38:47,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 11:38:47,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 11:38:47,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 11:38:47,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 11:38:47,540 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 11:38:47,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 11:38:47,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 11:38:47,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 11:38:47,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 11:38:47,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 11:38:47,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:38:47,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 11:38:47,544 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 11:38:47,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 11:38:47,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 11:38:47,545 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 11:38:47,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 11:38:47,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 11:38:47,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 11:38:47,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 11:38:47,742 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 11:38:47,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c [2023-12-20 11:38:48,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 11:38:49,206 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 11:38:49,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c [2023-12-20 11:38:49,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acdec9d64/36bc11a5f78e4615846cf3f3eae947a8/FLAG5c24d3206 [2023-12-20 11:38:49,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acdec9d64/36bc11a5f78e4615846cf3f3eae947a8 [2023-12-20 11:38:49,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 11:38:49,272 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 11:38:49,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 11:38:49,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 11:38:49,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 11:38:49,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:38:49" (1/1) ... [2023-12-20 11:38:49,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8f1b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:49, skipping insertion in model container [2023-12-20 11:38:49,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:38:49" (1/1) ... [2023-12-20 11:38:49,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 11:38:50,546 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2023-12-20 11:38:50,574 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2023-12-20 11:38:50,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:38:50,785 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 11:38:51,321 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2023-12-20 11:38:51,333 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2023-12-20 11:38:51,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:38:51,390 INFO L206 MainTranslator]: Completed translation [2023-12-20 11:38:51,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51 WrapperNode [2023-12-20 11:38:51,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 11:38:51,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 11:38:51,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 11:38:51,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 11:38:51,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,809 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12873 [2023-12-20 11:38:51,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 11:38:51,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 11:38:51,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 11:38:51,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 11:38:51,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,965 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 11:38:51,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:51,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 11:38:52,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 11:38:52,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 11:38:52,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 11:38:52,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (1/1) ... [2023-12-20 11:38:52,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:38:52,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:38:52,402 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 11:38:52,420 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 11:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 11:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 11:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 11:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 11:38:52,510 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 11:38:52,512 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 11:38:58,016 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 11:38:58,096 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 11:38:58,097 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-20 11:38:58,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:38:58 BoogieIcfgContainer [2023-12-20 11:38:58,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 11:38:58,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 11:38:58,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 11:38:58,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 11:38:58,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:38:49" (1/3) ... [2023-12-20 11:38:58,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365cf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:38:58, skipping insertion in model container [2023-12-20 11:38:58,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:38:51" (2/3) ... [2023-12-20 11:38:58,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365cf06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:38:58, skipping insertion in model container [2023-12-20 11:38:58,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:38:58" (3/3) ... [2023-12-20 11:38:58,105 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.06.cil-2.c [2023-12-20 11:38:58,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 11:38:58,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 11:38:58,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 11:38:58,191 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;@230fbf64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 11:38:58,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 11:38:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-20 11:38:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:38:58,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:38:58,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:38:58,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:38:58,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:38:58,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1188096418, now seen corresponding path program 1 times [2023-12-20 11:38:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:38:58,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508229112] [2023-12-20 11:38:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:38:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:38:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:38:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:38:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:38:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:38:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:38:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:58,593 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 11:38:58,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:38:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508229112] [2023-12-20 11:38:58,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508229112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:38:58,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:38:58,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 11:38:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567927473] [2023-12-20 11:38:58,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:38:58,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 11:38:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:38:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 11:38:58,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 11:38:58,627 INFO L87 Difference]: Start difference. First operand has 2333 states, 2304 states have (on average 1.8815104166666667) internal successors, (4335), 2307 states have internal predecessors, (4335), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:38:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:38:59,532 INFO L93 Difference]: Finished difference Result 4728 states and 8858 transitions. [2023-12-20 11:38:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 11:38:59,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:38:59,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:38:59,551 INFO L225 Difference]: With dead ends: 4728 [2023-12-20 11:38:59,551 INFO L226 Difference]: Without dead ends: 2399 [2023-12-20 11:38:59,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 11:38:59,560 INFO L413 NwaCegarLoop]: 4143 mSDtfsCounter, 553 mSDsluCounter, 12072 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 16215 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:38:59,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 16215 Invalid, 643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:38:59,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2023-12-20 11:38:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2329. [2023-12-20 11:38:59,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2301 states have (on average 1.8457192524989134) internal successors, (4247), 2303 states have internal predecessors, (4247), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-20 11:38:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4287 transitions. [2023-12-20 11:38:59,683 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4287 transitions. Word has length 101 [2023-12-20 11:38:59,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:38:59,684 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 4287 transitions. [2023-12-20 11:38:59,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:38:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4287 transitions. [2023-12-20 11:38:59,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:38:59,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:38:59,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:38:59,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 11:38:59,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:38:59,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:38:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1229807648, now seen corresponding path program 1 times [2023-12-20 11:38:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:38:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889614042] [2023-12-20 11:38:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:38:59,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:38:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:38:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:38:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:38:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:38:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:38:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:38:59,914 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 11:38:59,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:38:59,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889614042] [2023-12-20 11:38:59,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889614042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:38:59,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:38:59,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:38:59,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925103162] [2023-12-20 11:38:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:38:59,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:38:59,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:38:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:38:59,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:38:59,917 INFO L87 Difference]: Start difference. First operand 2329 states and 4287 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:01,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:01,659 INFO L93 Difference]: Finished difference Result 2881 states and 5198 transitions. [2023-12-20 11:39:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:39:01,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:01,670 INFO L225 Difference]: With dead ends: 2881 [2023-12-20 11:39:01,670 INFO L226 Difference]: Without dead ends: 2685 [2023-12-20 11:39:01,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:39:01,673 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 4743 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 20976 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:01,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 20976 Invalid, 2236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:39:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2023-12-20 11:39:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2536. [2023-12-20 11:39:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2483 states have (on average 1.829238824003222) internal successors, (4542), 2487 states have internal predecessors, (4542), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2023-12-20 11:39:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4623 transitions. [2023-12-20 11:39:01,728 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4623 transitions. Word has length 101 [2023-12-20 11:39:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:01,728 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 4623 transitions. [2023-12-20 11:39:01,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4623 transitions. [2023-12-20 11:39:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:01,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:01,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:01,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 11:39:01,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:01,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1188676830, now seen corresponding path program 1 times [2023-12-20 11:39:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301490373] [2023-12-20 11:39:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:01,873 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 11:39:01,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:01,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301490373] [2023-12-20 11:39:01,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301490373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:01,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:01,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:01,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706122279] [2023-12-20 11:39:01,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:01,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:01,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:01,875 INFO L87 Difference]: Start difference. First operand 2536 states and 4623 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:03,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:03,523 INFO L93 Difference]: Finished difference Result 3580 states and 6330 transitions. [2023-12-20 11:39:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:39:03,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:03,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:03,536 INFO L225 Difference]: With dead ends: 3580 [2023-12-20 11:39:03,536 INFO L226 Difference]: Without dead ends: 3179 [2023-12-20 11:39:03,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:39:03,539 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 4768 mSDsluCounter, 16681 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 20884 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:03,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 20884 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:39:03,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2023-12-20 11:39:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2914. [2023-12-20 11:39:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.8008519701810437) internal successors, (5073), 2823 states have internal predecessors, (5073), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:39:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5224 transitions. [2023-12-20 11:39:03,609 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5224 transitions. Word has length 101 [2023-12-20 11:39:03,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:03,610 INFO L495 AbstractCegarLoop]: Abstraction has 2914 states and 5224 transitions. [2023-12-20 11:39:03,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5224 transitions. [2023-12-20 11:39:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:03,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:03,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:03,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 11:39:03,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:03,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1227159520, now seen corresponding path program 1 times [2023-12-20 11:39:03,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:03,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332473269] [2023-12-20 11:39:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:03,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:03,832 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 11:39:03,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:03,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332473269] [2023-12-20 11:39:03,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332473269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:03,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:03,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:03,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094797204] [2023-12-20 11:39:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:03,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:03,834 INFO L87 Difference]: Start difference. First operand 2914 states and 5224 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:04,555 INFO L93 Difference]: Finished difference Result 3965 states and 6956 transitions. [2023-12-20 11:39:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:39:04,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:04,568 INFO L225 Difference]: With dead ends: 3965 [2023-12-20 11:39:04,568 INFO L226 Difference]: Without dead ends: 3184 [2023-12-20 11:39:04,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:39:04,576 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4644 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:04,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 16333 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 11:39:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2023-12-20 11:39:04,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 2914. [2023-12-20 11:39:04,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7990770323038694) internal successors, (5068), 2823 states have internal predecessors, (5068), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:39:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5219 transitions. [2023-12-20 11:39:04,652 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5219 transitions. Word has length 101 [2023-12-20 11:39:04,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:04,653 INFO L495 AbstractCegarLoop]: Abstraction has 2914 states and 5219 transitions. [2023-12-20 11:39:04,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:04,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5219 transitions. [2023-12-20 11:39:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:04,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:04,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:04,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 11:39:04,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:04,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1742951582, now seen corresponding path program 1 times [2023-12-20 11:39:04,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:04,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305830959] [2023-12-20 11:39:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:04,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:04,793 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 11:39:04,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:04,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305830959] [2023-12-20 11:39:04,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305830959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203548793] [2023-12-20 11:39:04,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:04,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:04,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:04,801 INFO L87 Difference]: Start difference. First operand 2914 states and 5219 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:05,582 INFO L93 Difference]: Finished difference Result 3961 states and 6935 transitions. [2023-12-20 11:39:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:39:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:05,592 INFO L225 Difference]: With dead ends: 3961 [2023-12-20 11:39:05,592 INFO L226 Difference]: Without dead ends: 3180 [2023-12-20 11:39:05,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:39:05,595 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4642 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 16333 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:05,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4656 Valid, 16333 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:39:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2023-12-20 11:39:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2914. [2023-12-20 11:39:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.797302094426695) internal successors, (5063), 2823 states have internal predecessors, (5063), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:39:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5214 transitions. [2023-12-20 11:39:05,657 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5214 transitions. Word has length 101 [2023-12-20 11:39:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:05,658 INFO L495 AbstractCegarLoop]: Abstraction has 2914 states and 5214 transitions. [2023-12-20 11:39:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5214 transitions. [2023-12-20 11:39:05,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:05,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:05,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:05,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 11:39:05,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:05,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash -176193632, now seen corresponding path program 1 times [2023-12-20 11:39:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:05,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906917122] [2023-12-20 11:39:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:05,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:05,846 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 11:39:05,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:05,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906917122] [2023-12-20 11:39:05,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906917122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:05,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:05,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:05,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818259278] [2023-12-20 11:39:05,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:05,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:05,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:05,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:05,848 INFO L87 Difference]: Start difference. First operand 2914 states and 5214 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:06,579 INFO L93 Difference]: Finished difference Result 3956 states and 6912 transitions. [2023-12-20 11:39:06,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:39:06,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:06,590 INFO L225 Difference]: With dead ends: 3956 [2023-12-20 11:39:06,590 INFO L226 Difference]: Without dead ends: 3175 [2023-12-20 11:39:06,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:39:06,593 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 4555 mSDsluCounter, 16280 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 20387 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:06,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 20387 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:39:06,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2023-12-20 11:39:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2914. [2023-12-20 11:39:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2817 states have (on average 1.7955271565495208) internal successors, (5058), 2823 states have internal predecessors, (5058), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:39:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 5209 transitions. [2023-12-20 11:39:06,654 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 5209 transitions. Word has length 101 [2023-12-20 11:39:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:06,655 INFO L495 AbstractCegarLoop]: Abstraction has 2914 states and 5209 transitions. [2023-12-20 11:39:06,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 5209 transitions. [2023-12-20 11:39:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:06,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:06,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:06,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 11:39:06,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:06,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:06,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1234031710, now seen corresponding path program 1 times [2023-12-20 11:39:06,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711337615] [2023-12-20 11:39:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:06,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:06,780 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 11:39:06,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711337615] [2023-12-20 11:39:06,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711337615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:06,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:06,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631857361] [2023-12-20 11:39:06,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:06,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:06,781 INFO L87 Difference]: Start difference. First operand 2914 states and 5209 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:08,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:08,360 INFO L93 Difference]: Finished difference Result 4927 states and 8441 transitions. [2023-12-20 11:39:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:39:08,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:08,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:08,382 INFO L225 Difference]: With dead ends: 4927 [2023-12-20 11:39:08,383 INFO L226 Difference]: Without dead ends: 4148 [2023-12-20 11:39:08,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:39:08,388 INFO L413 NwaCegarLoop]: 4237 mSDtfsCounter, 4734 mSDsluCounter, 16733 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 20970 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:08,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 20970 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:39:08,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2023-12-20 11:39:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3681. [2023-12-20 11:39:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3496 states have (on average 1.7502860411899313) internal successors, (6119), 3506 states have internal predecessors, (6119), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2023-12-20 11:39:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 6416 transitions. [2023-12-20 11:39:08,492 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 6416 transitions. Word has length 101 [2023-12-20 11:39:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:08,493 INFO L495 AbstractCegarLoop]: Abstraction has 3681 states and 6416 transitions. [2023-12-20 11:39:08,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 6416 transitions. [2023-12-20 11:39:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:08,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:08,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:08,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 11:39:08,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:08,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1918433120, now seen corresponding path program 1 times [2023-12-20 11:39:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:08,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225579805] [2023-12-20 11:39:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:08,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:08,618 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 11:39:08,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:08,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225579805] [2023-12-20 11:39:08,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225579805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:08,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:08,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:08,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457573279] [2023-12-20 11:39:08,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:08,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:08,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:08,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:08,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:08,620 INFO L87 Difference]: Start difference. First operand 3681 states and 6416 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:10,450 INFO L93 Difference]: Finished difference Result 8286 states and 13806 transitions. [2023-12-20 11:39:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:10,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:10,474 INFO L225 Difference]: With dead ends: 8286 [2023-12-20 11:39:10,474 INFO L226 Difference]: Without dead ends: 6740 [2023-12-20 11:39:10,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:10,483 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 4964 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 20964 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:10,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 20964 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:39:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6740 states. [2023-12-20 11:39:10,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6740 to 5206. [2023-12-20 11:39:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5206 states, 4853 states have (on average 1.6985369874304554) internal successors, (8243), 4871 states have internal predecessors, (8243), 239 states have call successors, (239), 96 states have call predecessors, (239), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2023-12-20 11:39:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 5206 states and 8834 transitions. [2023-12-20 11:39:10,629 INFO L78 Accepts]: Start accepts. Automaton has 5206 states and 8834 transitions. Word has length 101 [2023-12-20 11:39:10,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:10,630 INFO L495 AbstractCegarLoop]: Abstraction has 5206 states and 8834 transitions. [2023-12-20 11:39:10,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:10,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5206 states and 8834 transitions. [2023-12-20 11:39:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:10,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:10,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:10,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 11:39:10,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:10,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:10,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2136294430, now seen corresponding path program 1 times [2023-12-20 11:39:10,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:10,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520249853] [2023-12-20 11:39:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:10,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:10,743 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 11:39:10,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:10,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520249853] [2023-12-20 11:39:10,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520249853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:10,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:10,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:10,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029431017] [2023-12-20 11:39:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:10,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:10,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:10,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:10,744 INFO L87 Difference]: Start difference. First operand 5206 states and 8834 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:12,573 INFO L93 Difference]: Finished difference Result 13949 states and 22916 transitions. [2023-12-20 11:39:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:12,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:12,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:12,618 INFO L225 Difference]: With dead ends: 13949 [2023-12-20 11:39:12,618 INFO L226 Difference]: Without dead ends: 10878 [2023-12-20 11:39:12,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:12,631 INFO L413 NwaCegarLoop]: 4235 mSDtfsCounter, 4907 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4927 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:12,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4927 Valid, 20963 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:39:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2023-12-20 11:39:12,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 8271. [2023-12-20 11:39:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8271 states, 7590 states have (on average 1.6517786561264822) internal successors, (12537), 7624 states have internal predecessors, (12537), 455 states have call successors, (455), 192 states have call predecessors, (455), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2023-12-20 11:39:12,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8271 states to 8271 states and 13754 transitions. [2023-12-20 11:39:12,947 INFO L78 Accepts]: Start accepts. Automaton has 8271 states and 13754 transitions. Word has length 101 [2023-12-20 11:39:12,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:12,948 INFO L495 AbstractCegarLoop]: Abstraction has 8271 states and 13754 transitions. [2023-12-20 11:39:12,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:12,948 INFO L276 IsEmpty]: Start isEmpty. Operand 8271 states and 13754 transitions. [2023-12-20 11:39:12,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:12,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:12,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:12,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 11:39:12,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:12,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:12,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2109228828, now seen corresponding path program 1 times [2023-12-20 11:39:12,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:12,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343381460] [2023-12-20 11:39:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:12,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:13,074 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 11:39:13,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343381460] [2023-12-20 11:39:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343381460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:13,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:13,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:13,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111835687] [2023-12-20 11:39:13,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:13,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:13,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:13,075 INFO L87 Difference]: Start difference. First operand 8271 states and 13754 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:14,934 INFO L93 Difference]: Finished difference Result 25224 states and 41230 transitions. [2023-12-20 11:39:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:14,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:14,990 INFO L225 Difference]: With dead ends: 25224 [2023-12-20 11:39:14,990 INFO L226 Difference]: Without dead ends: 19088 [2023-12-20 11:39:15,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:15,008 INFO L413 NwaCegarLoop]: 4204 mSDtfsCounter, 4884 mSDsluCounter, 16679 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 20883 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:15,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 20883 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 11:39:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19088 states. [2023-12-20 11:39:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19088 to 14401. [2023-12-20 11:39:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 13080 states have (on average 1.6175076452599388) internal successors, (21157), 13146 states have internal predecessors, (21157), 871 states have call successors, (871), 384 states have call predecessors, (871), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2023-12-20 11:39:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 23756 transitions. [2023-12-20 11:39:15,474 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 23756 transitions. Word has length 101 [2023-12-20 11:39:15,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:15,474 INFO L495 AbstractCegarLoop]: Abstraction has 14401 states and 23756 transitions. [2023-12-20 11:39:15,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 23756 transitions. [2023-12-20 11:39:15,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:15,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:15,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:15,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 11:39:15,483 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:15,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 108401570, now seen corresponding path program 1 times [2023-12-20 11:39:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:15,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738134662] [2023-12-20 11:39:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:15,598 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 11:39:15,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:15,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738134662] [2023-12-20 11:39:15,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738134662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:15,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:15,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:15,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232804071] [2023-12-20 11:39:15,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:15,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:15,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:15,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:15,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:15,599 INFO L87 Difference]: Start difference. First operand 14401 states and 23756 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:17,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:17,909 INFO L93 Difference]: Finished difference Result 47294 states and 77674 transitions. [2023-12-20 11:39:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:17,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:17,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:18,035 INFO L225 Difference]: With dead ends: 47294 [2023-12-20 11:39:18,036 INFO L226 Difference]: Without dead ends: 35028 [2023-12-20 11:39:18,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:18,082 INFO L413 NwaCegarLoop]: 4235 mSDtfsCounter, 4775 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 20963 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:18,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 20963 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:39:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35028 states. [2023-12-20 11:39:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35028 to 26661. [2023-12-20 11:39:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26661 states, 24092 states have (on average 1.596422048812884) internal successors, (38461), 24222 states have internal predecessors, (38461), 1671 states have call successors, (1671), 768 states have call predecessors, (1671), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2023-12-20 11:39:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26661 states to 26661 states and 44246 transitions. [2023-12-20 11:39:19,115 INFO L78 Accepts]: Start accepts. Automaton has 26661 states and 44246 transitions. Word has length 101 [2023-12-20 11:39:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:19,116 INFO L495 AbstractCegarLoop]: Abstraction has 26661 states and 44246 transitions. [2023-12-20 11:39:19,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 26661 states and 44246 transitions. [2023-12-20 11:39:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:19,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:19,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:19,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 11:39:19,133 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:19,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:19,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1842506020, now seen corresponding path program 1 times [2023-12-20 11:39:19,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:19,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363371572] [2023-12-20 11:39:19,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:19,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:19,243 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 11:39:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363371572] [2023-12-20 11:39:19,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363371572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:19,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:19,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565682048] [2023-12-20 11:39:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:19,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:19,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:19,244 INFO L87 Difference]: Start difference. First operand 26661 states and 44246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:22,094 INFO L93 Difference]: Finished difference Result 90474 states and 150842 transitions. [2023-12-20 11:39:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:22,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:22,295 INFO L225 Difference]: With dead ends: 90474 [2023-12-20 11:39:22,295 INFO L226 Difference]: Without dead ends: 65948 [2023-12-20 11:39:22,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:22,354 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 4805 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 20966 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:22,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4825 Valid, 20966 Invalid, 2029 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [59 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 11:39:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65948 states. [2023-12-20 11:39:24,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65948 to 51181. [2023-12-20 11:39:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51181 states, 46180 states have (on average 1.585036812472932) internal successors, (73197), 46438 states have internal predecessors, (73197), 3207 states have call successors, (3207), 1536 states have call predecessors, (3207), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2023-12-20 11:39:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51181 states to 51181 states and 86684 transitions. [2023-12-20 11:39:24,487 INFO L78 Accepts]: Start accepts. Automaton has 51181 states and 86684 transitions. Word has length 101 [2023-12-20 11:39:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:24,487 INFO L495 AbstractCegarLoop]: Abstraction has 51181 states and 86684 transitions. [2023-12-20 11:39:24,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 51181 states and 86684 transitions. [2023-12-20 11:39:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:24,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:24,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:24,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 11:39:24,523 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:24,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1565238430, now seen corresponding path program 1 times [2023-12-20 11:39:24,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:24,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207423270] [2023-12-20 11:39:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:24,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:24,646 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 11:39:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207423270] [2023-12-20 11:39:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207423270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:24,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:24,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:39:24,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846037376] [2023-12-20 11:39:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:24,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:39:24,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:39:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:24,648 INFO L87 Difference]: Start difference. First operand 51181 states and 86684 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:28,835 INFO L93 Difference]: Finished difference Result 174914 states and 299682 transitions. [2023-12-20 11:39:28,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:39:28,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:29,289 INFO L225 Difference]: With dead ends: 174914 [2023-12-20 11:39:29,290 INFO L226 Difference]: Without dead ends: 125868 [2023-12-20 11:39:29,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:39:29,420 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 4756 mSDsluCounter, 16728 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 20964 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:29,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 20964 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:39:29,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125868 states. [2023-12-20 11:39:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125868 to 100221. [2023-12-20 11:39:33,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100221 states, 90484 states have (on average 1.5795610273639538) internal successors, (142925), 90998 states have internal predecessors, (142925), 6151 states have call successors, (6151), 3072 states have call predecessors, (6151), 3584 states have return successors, (26858), 6662 states have call predecessors, (26858), 6151 states have call successors, (26858) [2023-12-20 11:39:34,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100221 states to 100221 states and 175934 transitions. [2023-12-20 11:39:34,028 INFO L78 Accepts]: Start accepts. Automaton has 100221 states and 175934 transitions. Word has length 101 [2023-12-20 11:39:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:34,028 INFO L495 AbstractCegarLoop]: Abstraction has 100221 states and 175934 transitions. [2023-12-20 11:39:34,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 100221 states and 175934 transitions. [2023-12-20 11:39:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 11:39:34,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:34,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:39:34,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 11:39:34,098 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:34,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash 818686308, now seen corresponding path program 1 times [2023-12-20 11:39:34,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:34,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392110783] [2023-12-20 11:39:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:34,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:34,186 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 11:39:34,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:34,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392110783] [2023-12-20 11:39:34,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392110783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:34,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:39:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 11:39:34,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537984185] [2023-12-20 11:39:34,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:34,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 11:39:34,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:34,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 11:39:34,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 11:39:34,187 INFO L87 Difference]: Start difference. First operand 100221 states and 175934 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:41,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:39:41,649 INFO L93 Difference]: Finished difference Result 338435 states and 586502 transitions. [2023-12-20 11:39:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:39:41,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-20 11:39:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:39:42,758 INFO L225 Difference]: With dead ends: 338435 [2023-12-20 11:39:42,758 INFO L226 Difference]: Without dead ends: 240349 [2023-12-20 11:39:42,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-20 11:39:42,998 INFO L413 NwaCegarLoop]: 4285 mSDtfsCounter, 5001 mSDsluCounter, 12453 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 16738 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:39:42,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 16738 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:39:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240349 states. [2023-12-20 11:39:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240349 to 195743. [2023-12-20 11:39:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195743 states, 176277 states have (on average 1.567096104426556) internal successors, (276243), 177815 states have internal predecessors, (276243), 12296 states have call successors, (12296), 6144 states have call predecessors, (12296), 7168 states have return successors, (53197), 12295 states have call predecessors, (53197), 12296 states have call successors, (53197) [2023-12-20 11:39:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195743 states to 195743 states and 341736 transitions. [2023-12-20 11:39:51,602 INFO L78 Accepts]: Start accepts. Automaton has 195743 states and 341736 transitions. Word has length 101 [2023-12-20 11:39:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:39:51,602 INFO L495 AbstractCegarLoop]: Abstraction has 195743 states and 341736 transitions. [2023-12-20 11:39:51,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:39:51,603 INFO L276 IsEmpty]: Start isEmpty. Operand 195743 states and 341736 transitions. [2023-12-20 11:39:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-20 11:39:51,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:39:51,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:51,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 11:39:51,916 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:39:51,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:39:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash -536714256, now seen corresponding path program 1 times [2023-12-20 11:39:51,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:39:51,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587080235] [2023-12-20 11:39:51,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:51,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:39:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:51,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:39:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:39:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:39:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:39:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:39:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 11:39:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:39:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 11:39:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,028 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:39:52,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:39:52,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587080235] [2023-12-20 11:39:52,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587080235] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:39:52,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190451839] [2023-12-20 11:39:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:39:52,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:39:52,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:39:52,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:39:52,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 11:39:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:39:52,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:39:52,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:39:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-20 11:39:52,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:39:52,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190451839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:39:52,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:39:52,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:39:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183738550] [2023-12-20 11:39:52,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:39:52,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:39:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:39:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:39:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:39:52,485 INFO L87 Difference]: Start difference. First operand 195743 states and 341736 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:40:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:40:03,733 INFO L93 Difference]: Finished difference Result 579885 states and 1017754 transitions. [2023-12-20 11:40:03,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:40:03,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2023-12-20 11:40:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:40:05,569 INFO L225 Difference]: With dead ends: 579885 [2023-12-20 11:40:05,569 INFO L226 Difference]: Without dead ends: 386277 [2023-12-20 11:40:06,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:40:06,050 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 4227 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4227 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:40:06,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4227 Valid, 4527 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 11:40:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386277 states. [2023-12-20 11:40:19,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386277 to 385251. [2023-12-20 11:40:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385251 states, 346839 states have (on average 1.562266642447937) internal successors, (541855), 349913 states have internal predecessors, (541855), 24074 states have call successors, (24074), 12288 states have call predecessors, (24074), 14336 states have return successors, (105363), 23561 states have call predecessors, (105363), 24074 states have call successors, (105363) [2023-12-20 11:40:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385251 states to 385251 states and 671292 transitions. [2023-12-20 11:40:22,767 INFO L78 Accepts]: Start accepts. Automaton has 385251 states and 671292 transitions. Word has length 163 [2023-12-20 11:40:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:40:22,767 INFO L495 AbstractCegarLoop]: Abstraction has 385251 states and 671292 transitions. [2023-12-20 11:40:22,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:40:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 385251 states and 671292 transitions. [2023-12-20 11:40:23,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-20 11:40:23,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:40:23,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:23,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 11:40:23,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-20 11:40:23,736 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:40:23,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:40:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash 174784336, now seen corresponding path program 1 times [2023-12-20 11:40:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:40:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016134300] [2023-12-20 11:40:23,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:40:23,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:40:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:40:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:40:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:40:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:40:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:40:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 11:40:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:40:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 11:40:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:40:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:40:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016134300] [2023-12-20 11:40:23,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016134300] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:40:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734581460] [2023-12-20 11:40:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:40:23,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:40:23,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:40:23,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:40:23,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 11:40:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:40:24,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:40:24,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:40:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 11:40:24,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:40:24,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734581460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:40:24,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:40:24,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:40:24,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993373160] [2023-12-20 11:40:24,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:40:24,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:40:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:40:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:40:24,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:40:24,227 INFO L87 Difference]: Start difference. First operand 385251 states and 671292 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:40:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:40:48,052 INFO L93 Difference]: Finished difference Result 1145337 states and 2006936 transitions. [2023-12-20 11:40:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:40:48,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2023-12-20 11:40:48,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:40:52,014 INFO L225 Difference]: With dead ends: 1145337 [2023-12-20 11:40:52,015 INFO L226 Difference]: Without dead ends: 762221 [2023-12-20 11:40:53,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:40:53,125 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 4217 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:40:53,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 4527 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 11:40:53,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762221 states.