./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 834ccc2d6e5ce947bfece9c1e11f57131346eaac8927553a9495d7568350ac6e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:15:39,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:15:39,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:15:39,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:15:39,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:15:39,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:15:39,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:15:39,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:15:39,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:15:39,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:15:39,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:15:39,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:15:39,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:15:39,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:15:39,227 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:15:39,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:15:39,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:15:39,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:15:39,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:15:39,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:15:39,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:15:39,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:15:39,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:15:39,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:15:39,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:15:39,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:15:39,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:15:39,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:15:39,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:15:39,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:15:39,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:15:39,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:15:39,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:15:39,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:15:39,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:15:39,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:15:39,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:15:39,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:15:39,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:15:39,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:15:39,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:15:39,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:15:39,238 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 834ccc2d6e5ce947bfece9c1e11f57131346eaac8927553a9495d7568350ac6e [2024-10-24 01:15:39,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:15:39,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:15:39,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:15:39,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:15:39,513 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:15:39,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c [2024-10-24 01:15:40,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:15:41,167 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:15:41,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c [2024-10-24 01:15:41,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b4388c5/cc140667b823454daf048501a26a16c7/FLAG822a9d15c [2024-10-24 01:15:41,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9b4388c5/cc140667b823454daf048501a26a16c7 [2024-10-24 01:15:41,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:15:41,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:15:41,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:15:41,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:15:41,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:15:41,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:15:41" (1/1) ... [2024-10-24 01:15:41,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f24f9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:41, skipping insertion in model container [2024-10-24 01:15:41,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:15:41" (1/1) ... [2024-10-24 01:15:41,585 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:15:41,766 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c[671,684] [2024-10-24 01:15:41,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:15:41,922 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:15:41,932 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.09.cil-1.c[671,684] [2024-10-24 01:15:41,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:15:42,045 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:15:42,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42 WrapperNode [2024-10-24 01:15:42,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:15:42,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:15:42,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:15:42,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:15:42,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,140 INFO L138 Inliner]: procedures = 46, calls = 58, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 699 [2024-10-24 01:15:42,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:15:42,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:15:42,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:15:42,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:15:42,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,192 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:15:42,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,210 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:15:42,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:15:42,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:15:42,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:15:42,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (1/1) ... [2024-10-24 01:15:42,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:15:42,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:15:42,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:15:42,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:15:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:15:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:15:42,329 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:15:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:15:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:15:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:15:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:15:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:15:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:15:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:15:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:15:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:15:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:15:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:15:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:15:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:15:42,424 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:15:42,426 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:15:43,172 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-10-24 01:15:43,173 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:15:43,248 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:15:43,248 INFO L314 CfgBuilder]: Removed 12 assume(true) statements. [2024-10-24 01:15:43,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:15:43 BoogieIcfgContainer [2024-10-24 01:15:43,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:15:43,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:15:43,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:15:43,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:15:43,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:15:41" (1/3) ... [2024-10-24 01:15:43,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd03723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:15:43, skipping insertion in model container [2024-10-24 01:15:43,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:15:42" (2/3) ... [2024-10-24 01:15:43,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd03723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:15:43, skipping insertion in model container [2024-10-24 01:15:43,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:15:43" (3/3) ... [2024-10-24 01:15:43,260 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.09.cil-1.c [2024-10-24 01:15:43,277 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:15:43,277 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:15:43,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:15:43,362 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23bc637e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:15:43,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:15:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 250 states have internal predecessors, (428), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 01:15:43,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:43,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:43,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:43,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:43,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1075224052, now seen corresponding path program 1 times [2024-10-24 01:15:43,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:43,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894132297] [2024-10-24 01:15:43,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:43,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:43,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:43,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:43,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:44,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:44,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:44,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:44,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894132297] [2024-10-24 01:15:44,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894132297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:44,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:44,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:15:44,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636591301] [2024-10-24 01:15:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:44,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:15:44,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:44,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:15:44,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:15:44,126 INFO L87 Difference]: Start difference. First operand has 279 states, 248 states have (on average 1.7258064516129032) internal successors, (428), 250 states have internal predecessors, (428), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-10-24 01:15:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:45,821 INFO L93 Difference]: Finished difference Result 648 states and 1109 transitions. [2024-10-24 01:15:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:15:45,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:45,843 INFO L225 Difference]: With dead ends: 648 [2024-10-24 01:15:45,845 INFO L226 Difference]: Without dead ends: 377 [2024-10-24 01:15:45,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:15:45,859 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 760 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:45,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 502 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 01:15:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-10-24 01:15:45,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 277. [2024-10-24 01:15:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 247 states have (on average 1.6194331983805668) internal successors, (400), 248 states have internal predecessors, (400), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 01:15:45,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 446 transitions. [2024-10-24 01:15:45,956 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 446 transitions. Word has length 130 [2024-10-24 01:15:45,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:45,957 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 446 transitions. [2024-10-24 01:15:45,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-10-24 01:15:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 446 transitions. [2024-10-24 01:15:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:45,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:45,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:45,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:15:45,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:45,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:45,964 INFO L85 PathProgramCache]: Analyzing trace with hash 206948234, now seen corresponding path program 1 times [2024-10-24 01:15:45,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:45,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003527767] [2024-10-24 01:15:45,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:45,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:46,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:46,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003527767] [2024-10-24 01:15:46,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003527767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:46,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:46,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:15:46,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495642661] [2024-10-24 01:15:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:46,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:15:46,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:15:46,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:15:46,347 INFO L87 Difference]: Start difference. First operand 277 states and 446 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-10-24 01:15:48,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:48,758 INFO L93 Difference]: Finished difference Result 1014 states and 1670 transitions. [2024-10-24 01:15:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:15:48,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:48,764 INFO L225 Difference]: With dead ends: 1014 [2024-10-24 01:15:48,765 INFO L226 Difference]: Without dead ends: 752 [2024-10-24 01:15:48,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:15:48,767 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1150 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:48,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 841 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 01:15:48,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-10-24 01:15:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 553. [2024-10-24 01:15:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 498 states have (on average 1.6285140562248996) internal successors, (811), 500 states have internal predecessors, (811), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-10-24 01:15:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 896 transitions. [2024-10-24 01:15:48,831 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 896 transitions. Word has length 130 [2024-10-24 01:15:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:48,833 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 896 transitions. [2024-10-24 01:15:48,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-10-24 01:15:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 896 transitions. [2024-10-24 01:15:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:48,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:48,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:48,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:15:48,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:48,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1701342578, now seen corresponding path program 1 times [2024-10-24 01:15:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734224041] [2024-10-24 01:15:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:49,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734224041] [2024-10-24 01:15:49,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734224041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:49,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:49,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:15:49,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879736218] [2024-10-24 01:15:49,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:49,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:15:49,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:49,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:15:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:49,265 INFO L87 Difference]: Start difference. First operand 553 states and 896 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:52,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:52,202 INFO L93 Difference]: Finished difference Result 1679 states and 2764 transitions. [2024-10-24 01:15:52,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:15:52,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:52,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:52,213 INFO L225 Difference]: With dead ends: 1679 [2024-10-24 01:15:52,214 INFO L226 Difference]: Without dead ends: 1141 [2024-10-24 01:15:52,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:15:52,217 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1173 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:52,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1591 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2912 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 01:15:52,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-10-24 01:15:52,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 808. [2024-10-24 01:15:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 728 states have (on average 1.620879120879121) internal successors, (1180), 731 states have internal predecessors, (1180), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 01:15:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1303 transitions. [2024-10-24 01:15:52,313 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1303 transitions. Word has length 130 [2024-10-24 01:15:52,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:52,313 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1303 transitions. [2024-10-24 01:15:52,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:52,314 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1303 transitions. [2024-10-24 01:15:52,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:52,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:52,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:52,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:15:52,316 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:52,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1229986228, now seen corresponding path program 1 times [2024-10-24 01:15:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:52,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684045156] [2024-10-24 01:15:52,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:52,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:52,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684045156] [2024-10-24 01:15:52,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684045156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:52,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:52,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:15:52,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022810480] [2024-10-24 01:15:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:52,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:15:52,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:52,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:15:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:52,547 INFO L87 Difference]: Start difference. First operand 808 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:55,476 INFO L93 Difference]: Finished difference Result 2653 states and 4357 transitions. [2024-10-24 01:15:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:15:55,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:55,489 INFO L225 Difference]: With dead ends: 2653 [2024-10-24 01:15:55,489 INFO L226 Difference]: Without dead ends: 1860 [2024-10-24 01:15:55,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:15:55,496 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1171 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2908 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:55,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1589 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2908 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 01:15:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2024-10-24 01:15:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1319. [2024-10-24 01:15:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6139613120269134) internal successors, (1919), 1194 states have internal predecessors, (1919), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:15:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2122 transitions. [2024-10-24 01:15:55,594 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2122 transitions. Word has length 130 [2024-10-24 01:15:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:55,595 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 2122 transitions. [2024-10-24 01:15:55,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2122 transitions. [2024-10-24 01:15:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:55,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:55,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:55,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:15:55,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:55,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1417618126, now seen corresponding path program 1 times [2024-10-24 01:15:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096865435] [2024-10-24 01:15:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:55,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096865435] [2024-10-24 01:15:55,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096865435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:55,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:55,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:15:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620024834] [2024-10-24 01:15:55,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:55,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:15:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:15:55,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:55,884 INFO L87 Difference]: Start difference. First operand 1319 states and 2122 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:57,143 INFO L93 Difference]: Finished difference Result 3154 states and 5169 transitions. [2024-10-24 01:15:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:15:57,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:57,155 INFO L225 Difference]: With dead ends: 3154 [2024-10-24 01:15:57,155 INFO L226 Difference]: Without dead ends: 1850 [2024-10-24 01:15:57,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:15:57,162 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 963 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:57,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 685 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 01:15:57,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2024-10-24 01:15:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1319. [2024-10-24 01:15:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6097560975609757) internal successors, (1914), 1194 states have internal predecessors, (1914), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:15:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2117 transitions. [2024-10-24 01:15:57,282 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2117 transitions. Word has length 130 [2024-10-24 01:15:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:57,282 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 2117 transitions. [2024-10-24 01:15:57,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2117 transitions. [2024-10-24 01:15:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:57,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:57,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:57,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:15:57,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:57,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:57,285 INFO L85 PathProgramCache]: Analyzing trace with hash -713732596, now seen corresponding path program 1 times [2024-10-24 01:15:57,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:57,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84791064] [2024-10-24 01:15:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:57,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:57,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:57,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84791064] [2024-10-24 01:15:57,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84791064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:57,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:57,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:15:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709961206] [2024-10-24 01:15:57,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:57,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:15:57,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:57,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:15:57,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:57,503 INFO L87 Difference]: Start difference. First operand 1319 states and 2117 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:58,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:15:58,865 INFO L93 Difference]: Finished difference Result 3148 states and 5143 transitions. [2024-10-24 01:15:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:15:58,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:15:58,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:15:58,875 INFO L225 Difference]: With dead ends: 3148 [2024-10-24 01:15:58,876 INFO L226 Difference]: Without dead ends: 1844 [2024-10-24 01:15:58,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:15:58,881 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 847 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:15:58,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 815 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 01:15:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-10-24 01:15:58,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1319. [2024-10-24 01:15:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1189 states have (on average 1.6055508830950378) internal successors, (1909), 1194 states have internal predecessors, (1909), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:15:58,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2112 transitions. [2024-10-24 01:15:58,986 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2112 transitions. Word has length 130 [2024-10-24 01:15:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:15:58,987 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 2112 transitions. [2024-10-24 01:15:58,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:15:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2112 transitions. [2024-10-24 01:15:58,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:15:58,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:15:58,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:15:58,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:15:58,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:15:58,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:15:58,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1752317170, now seen corresponding path program 1 times [2024-10-24 01:15:58,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:15:58,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449812212] [2024-10-24 01:15:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:15:58,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:15:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:15:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:15:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:15:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:15:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:15:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:15:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:15:59,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:15:59,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449812212] [2024-10-24 01:15:59,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449812212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:15:59,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:15:59,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:15:59,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595918570] [2024-10-24 01:15:59,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:15:59,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:15:59,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:15:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:15:59,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:15:59,244 INFO L87 Difference]: Start difference. First operand 1319 states and 2112 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:01,653 INFO L93 Difference]: Finished difference Result 4501 states and 7316 transitions. [2024-10-24 01:16:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:01,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:01,673 INFO L225 Difference]: With dead ends: 4501 [2024-10-24 01:16:01,673 INFO L226 Difference]: Without dead ends: 3197 [2024-10-24 01:16:01,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:01,679 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 1240 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:01,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1042 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 01:16:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-24 01:16:01,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2355. [2024-10-24 01:16:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2125 states have (on average 1.5995294117647059) internal successors, (3399), 2134 states have internal predecessors, (3399), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-24 01:16:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3768 transitions. [2024-10-24 01:16:01,885 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3768 transitions. Word has length 130 [2024-10-24 01:16:01,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:01,885 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 3768 transitions. [2024-10-24 01:16:01,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3768 transitions. [2024-10-24 01:16:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:01,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:01,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:01,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:16:01,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:01,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash 400789648, now seen corresponding path program 1 times [2024-10-24 01:16:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722617658] [2024-10-24 01:16:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:01,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:01,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:02,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:02,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:02,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:02,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:02,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722617658] [2024-10-24 01:16:02,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722617658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:02,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:02,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981926291] [2024-10-24 01:16:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:02,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:02,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:02,130 INFO L87 Difference]: Start difference. First operand 2355 states and 3768 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:03,484 INFO L93 Difference]: Finished difference Result 5550 states and 9023 transitions. [2024-10-24 01:16:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:03,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:03,501 INFO L225 Difference]: With dead ends: 5550 [2024-10-24 01:16:03,502 INFO L226 Difference]: Without dead ends: 3210 [2024-10-24 01:16:03,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:03,511 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 845 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:03,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 815 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:16:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-10-24 01:16:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2355. [2024-10-24 01:16:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2125 states have (on average 1.5952941176470588) internal successors, (3390), 2134 states have internal predecessors, (3390), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-24 01:16:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3759 transitions. [2024-10-24 01:16:03,699 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3759 transitions. Word has length 130 [2024-10-24 01:16:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:03,699 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 3759 transitions. [2024-10-24 01:16:03,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3759 transitions. [2024-10-24 01:16:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:03,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:03,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:03,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:16:03,702 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:03,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash -222491954, now seen corresponding path program 1 times [2024-10-24 01:16:03,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:03,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995202247] [2024-10-24 01:16:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:03,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:03,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:03,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995202247] [2024-10-24 01:16:03,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995202247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:03,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:03,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682454993] [2024-10-24 01:16:03,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:03,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:03,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:03,939 INFO L87 Difference]: Start difference. First operand 2355 states and 3759 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:06,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:06,582 INFO L93 Difference]: Finished difference Result 8225 states and 13306 transitions. [2024-10-24 01:16:06,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:06,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:06,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:06,616 INFO L225 Difference]: With dead ends: 8225 [2024-10-24 01:16:06,616 INFO L226 Difference]: Without dead ends: 5885 [2024-10-24 01:16:06,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:06,626 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1149 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:06,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1589 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 01:16:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2024-10-24 01:16:06,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 4437. [2024-10-24 01:16:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 4007 states have (on average 1.5897179935113552) internal successors, (6370), 4024 states have internal predecessors, (6370), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-10-24 01:16:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 7089 transitions. [2024-10-24 01:16:07,010 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 7089 transitions. Word has length 130 [2024-10-24 01:16:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:07,011 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 7089 transitions. [2024-10-24 01:16:07,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 7089 transitions. [2024-10-24 01:16:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:07,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:07,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:07,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:16:07,017 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:07,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:07,018 INFO L85 PathProgramCache]: Analyzing trace with hash -104050480, now seen corresponding path program 1 times [2024-10-24 01:16:07,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:07,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311320901] [2024-10-24 01:16:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:07,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:07,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311320901] [2024-10-24 01:16:07,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311320901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:07,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:07,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:07,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428117199] [2024-10-24 01:16:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:07,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:07,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:07,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:07,226 INFO L87 Difference]: Start difference. First operand 4437 states and 7089 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:10,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:10,244 INFO L93 Difference]: Finished difference Result 15689 states and 25418 transitions. [2024-10-24 01:16:10,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:10,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:10,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:10,297 INFO L225 Difference]: With dead ends: 15689 [2024-10-24 01:16:10,297 INFO L226 Difference]: Without dead ends: 11267 [2024-10-24 01:16:10,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:10,314 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1148 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:10,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1589 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 01:16:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2024-10-24 01:16:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 8614. [2024-10-24 01:16:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8614 states, 7784 states have (on average 1.5863309352517985) internal successors, (12348), 7817 states have internal predecessors, (12348), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2024-10-24 01:16:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8614 states to 8614 states and 13821 transitions. [2024-10-24 01:16:10,970 INFO L78 Accepts]: Start accepts. Automaton has 8614 states and 13821 transitions. Word has length 130 [2024-10-24 01:16:10,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:10,971 INFO L471 AbstractCegarLoop]: Abstraction has 8614 states and 13821 transitions. [2024-10-24 01:16:10,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8614 states and 13821 transitions. [2024-10-24 01:16:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:10,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:10,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:10,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:16:10,978 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:10,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1285243534, now seen corresponding path program 1 times [2024-10-24 01:16:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567941952] [2024-10-24 01:16:10,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:10,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:11,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567941952] [2024-10-24 01:16:11,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567941952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:11,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:11,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960043959] [2024-10-24 01:16:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:11,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:11,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:11,197 INFO L87 Difference]: Start difference. First operand 8614 states and 13821 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:14,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:14,983 INFO L93 Difference]: Finished difference Result 34328 states and 55818 transitions. [2024-10-24 01:16:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:16:14,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:15,100 INFO L225 Difference]: With dead ends: 34328 [2024-10-24 01:16:15,100 INFO L226 Difference]: Without dead ends: 25729 [2024-10-24 01:16:15,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:16:15,138 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 1476 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:15,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1582 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 01:16:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25729 states. [2024-10-24 01:16:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25729 to 16935. [2024-10-24 01:16:16,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16935 states, 15337 states have (on average 1.5855773619351894) internal successors, (24318), 15402 states have internal predecessors, (24318), 1143 states have call successors, (1143), 390 states have call predecessors, (1143), 454 states have return successors, (1936), 1206 states have call predecessors, (1936), 1143 states have call successors, (1936) [2024-10-24 01:16:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16935 states to 16935 states and 27397 transitions. [2024-10-24 01:16:16,473 INFO L78 Accepts]: Start accepts. Automaton has 16935 states and 27397 transitions. Word has length 130 [2024-10-24 01:16:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:16,474 INFO L471 AbstractCegarLoop]: Abstraction has 16935 states and 27397 transitions. [2024-10-24 01:16:16,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 16935 states and 27397 transitions. [2024-10-24 01:16:16,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:16,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:16,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:16,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:16:16,487 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:16,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:16,488 INFO L85 PathProgramCache]: Analyzing trace with hash -748150512, now seen corresponding path program 1 times [2024-10-24 01:16:16,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:16,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6706196] [2024-10-24 01:16:16,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:16,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:16,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:16,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6706196] [2024-10-24 01:16:16,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6706196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:16,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:16,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:16,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836745061] [2024-10-24 01:16:16,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:16,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:16,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:16,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:16,803 INFO L87 Difference]: Start difference. First operand 16935 states and 27397 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:21,910 INFO L93 Difference]: Finished difference Result 66999 states and 109792 transitions. [2024-10-24 01:16:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:16:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:22,133 INFO L225 Difference]: With dead ends: 66999 [2024-10-24 01:16:22,133 INFO L226 Difference]: Without dead ends: 50079 [2024-10-24 01:16:22,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:16:22,194 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1219 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:22,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1578 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 01:16:22,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50079 states. [2024-10-24 01:16:24,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50079 to 33256. [2024-10-24 01:16:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33256 states, 30154 states have (on average 1.5854612986668435) internal successors, (47808), 30283 states have internal predecessors, (47808), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2024-10-24 01:16:25,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33256 states to 33256 states and 54521 transitions. [2024-10-24 01:16:25,330 INFO L78 Accepts]: Start accepts. Automaton has 33256 states and 54521 transitions. Word has length 130 [2024-10-24 01:16:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:25,330 INFO L471 AbstractCegarLoop]: Abstraction has 33256 states and 54521 transitions. [2024-10-24 01:16:25,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:25,331 INFO L276 IsEmpty]: Start isEmpty. Operand 33256 states and 54521 transitions. [2024-10-24 01:16:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:25,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:25,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:25,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:16:25,353 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:25,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:25,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1680108110, now seen corresponding path program 1 times [2024-10-24 01:16:25,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:25,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163561997] [2024-10-24 01:16:25,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:25,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:25,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:25,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163561997] [2024-10-24 01:16:25,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163561997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:25,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:25,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195544444] [2024-10-24 01:16:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:25,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:25,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:25,528 INFO L87 Difference]: Start difference. First operand 33256 states and 54521 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:29,158 INFO L93 Difference]: Finished difference Result 76630 states and 128228 transitions. [2024-10-24 01:16:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:29,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:29,342 INFO L225 Difference]: With dead ends: 76630 [2024-10-24 01:16:29,342 INFO L226 Difference]: Without dead ends: 43389 [2024-10-24 01:16:29,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:29,432 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 970 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:29,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 684 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 01:16:29,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43389 states. [2024-10-24 01:16:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43389 to 33256. [2024-10-24 01:16:32,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33256 states, 30154 states have (on average 1.5811832592690853) internal successors, (47679), 30283 states have internal predecessors, (47679), 2199 states have call successors, (2199), 774 states have call predecessors, (2199), 902 states have return successors, (4514), 2326 states have call predecessors, (4514), 2199 states have call successors, (4514) [2024-10-24 01:16:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33256 states to 33256 states and 54392 transitions. [2024-10-24 01:16:32,404 INFO L78 Accepts]: Start accepts. Automaton has 33256 states and 54392 transitions. Word has length 130 [2024-10-24 01:16:32,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:32,406 INFO L471 AbstractCegarLoop]: Abstraction has 33256 states and 54392 transitions. [2024-10-24 01:16:32,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 33256 states and 54392 transitions. [2024-10-24 01:16:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:32,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:32,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:32,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:16:32,427 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:32,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:32,427 INFO L85 PathProgramCache]: Analyzing trace with hash 372965712, now seen corresponding path program 1 times [2024-10-24 01:16:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606759638] [2024-10-24 01:16:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:32,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:32,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606759638] [2024-10-24 01:16:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606759638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:32,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:32,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:32,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358238170] [2024-10-24 01:16:32,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:32,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:32,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:32,612 INFO L87 Difference]: Start difference. First operand 33256 states and 54392 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:40,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:40,301 INFO L93 Difference]: Finished difference Result 127154 states and 210714 transitions. [2024-10-24 01:16:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:16:40,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:40,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:40,747 INFO L225 Difference]: With dead ends: 127154 [2024-10-24 01:16:40,747 INFO L226 Difference]: Without dead ends: 93913 [2024-10-24 01:16:41,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:16:41,057 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 1254 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:41,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1269 Valid, 1042 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:16:41,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93913 states. [2024-10-24 01:16:45,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93913 to 66475. [2024-10-24 01:16:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66475 states, 60429 states have (on average 1.5813102980357114) internal successors, (95557), 60686 states have internal predecessors, (95557), 4247 states have call successors, (4247), 1542 states have call predecessors, (4247), 1798 states have return successors, (11064), 4502 states have call predecessors, (11064), 4247 states have call successors, (11064) [2024-10-24 01:16:45,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66475 states to 66475 states and 110868 transitions. [2024-10-24 01:16:45,672 INFO L78 Accepts]: Start accepts. Automaton has 66475 states and 110868 transitions. Word has length 130 [2024-10-24 01:16:45,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:45,673 INFO L471 AbstractCegarLoop]: Abstraction has 66475 states and 110868 transitions. [2024-10-24 01:16:45,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 66475 states and 110868 transitions. [2024-10-24 01:16:45,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:16:45,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:45,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:16:45,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:16:45,712 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:45,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:45,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1404006610, now seen corresponding path program 1 times [2024-10-24 01:16:45,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:45,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977396091] [2024-10-24 01:16:45,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:45,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 01:16:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 01:16:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 01:16:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 01:16:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:45,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:45,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977396091] [2024-10-24 01:16:45,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977396091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:45,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:45,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:45,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647610533] [2024-10-24 01:16:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:45,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:45,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:45,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:45,889 INFO L87 Difference]: Start difference. First operand 66475 states and 110868 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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) [2024-10-24 01:16:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:52,054 INFO L93 Difference]: Finished difference Result 151766 states and 259235 transitions. [2024-10-24 01:16:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:52,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 5 states have internal predecessors, (120), 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 130 [2024-10-24 01:16:52,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:52,746 INFO L225 Difference]: With dead ends: 151766 [2024-10-24 01:16:52,746 INFO L226 Difference]: Without dead ends: 85306 [2024-10-24 01:16:52,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:52,893 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 967 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:52,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 684 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 01:16:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85306 states.