./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.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 6376aba20f200d9bf768f64f24c8f171e07f40ce45977e6b5a7728202ee9216f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:41:38,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:41:38,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:41:38,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:41:38,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:41:38,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:41:38,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:41:38,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:41:38,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:41:38,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:41:38,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:41:38,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:41:38,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:41:38,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:41:38,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:41:38,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:41:38,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:41:38,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:41:38,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:41:38,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:41:38,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:41:38,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:41:38,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:41:38,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:41:38,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:41:38,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:41:38,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:41:38,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:41:38,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:41:38,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:41:38,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:41:38,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:41:38,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:41:38,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:41:38,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:41:38,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:41:38,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:41:38,324 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6376aba20f200d9bf768f64f24c8f171e07f40ce45977e6b5a7728202ee9216f [2024-11-18 15:41:38,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:41:38,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:41:38,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:41:38,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:41:38,562 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:41:38,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c [2024-11-18 15:41:39,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:41:40,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:41:40,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c [2024-11-18 15:41:40,489 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f36a16969/7ecc392e205448678983e5589fe541a1/FLAG9bc4ce515 [2024-11-18 15:41:40,990 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f36a16969/7ecc392e205448678983e5589fe541a1 [2024-11-18 15:41:40,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:41:40,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:41:40,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:41:40,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:41:41,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:41:41,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:41:40" (1/1) ... [2024-11-18 15:41:41,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2b0a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:41, skipping insertion in model container [2024-11-18 15:41:41,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:41:40" (1/1) ... [2024-11-18 15:41:41,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:41:42,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c[377612,377625] [2024-11-18 15:41:42,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c[383339,383352] [2024-11-18 15:41:42,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:41:42,692 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:41:43,256 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c[377612,377625] [2024-11-18 15:41:43,263 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c[383339,383352] [2024-11-18 15:41:43,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:41:43,332 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:41:43,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43 WrapperNode [2024-11-18 15:41:43,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:41:43,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:41:43,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:41:43,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:41:43,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:43,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:43,699 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13173 [2024-11-18 15:41:43,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:41:43,700 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:41:43,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:41:43,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:41:43,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:43,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:43,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,043 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]. [2024-11-18 15:41:44,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:41:44,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:41:44,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:41:44,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:41:44,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (1/1) ... [2024-11-18 15:41:44,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:41:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:41:44,540 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) [2024-11-18 15:41:44,543 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 [2024-11-18 15:41:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:41:44,584 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:41:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:41:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:41:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:41:44,585 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:41:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:41:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:41:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:41:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:41:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:41:44,586 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:41:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:41:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:41:44,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:41:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:41:44,713 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:41:44,715 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:41:51,283 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-18 15:41:51,283 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:41:51,323 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:41:51,323 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-18 15:41:51,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:41:51 BoogieIcfgContainer [2024-11-18 15:41:51,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:41:51,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:41:51,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:41:51,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:41:51,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:41:40" (1/3) ... [2024-11-18 15:41:51,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb72317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:41:51, skipping insertion in model container [2024-11-18 15:41:51,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:41:43" (2/3) ... [2024-11-18 15:41:51,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb72317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:41:51, skipping insertion in model container [2024-11-18 15:41:51,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:41:51" (3/3) ... [2024-11-18 15:41:51,331 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.11.cil-2.c [2024-11-18 15:41:51,343 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:41:51,343 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:41:51,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:41:51,444 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;@52477f79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:41:51,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:41:51,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 15:41:51,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:51,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:51,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:51,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:51,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:51,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1612781040, now seen corresponding path program 1 times [2024-11-18 15:41:51,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:51,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893078132] [2024-11-18 15:41:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:51,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:51,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:51,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893078132] [2024-11-18 15:41:51,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893078132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:51,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:51,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:41:51,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075611838] [2024-11-18 15:41:51,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:51,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:41:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:41:51,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:41:51,964 INFO L87 Difference]: Start difference. First operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:52,111 INFO L93 Difference]: Finished difference Result 5092 states and 9345 transitions. [2024-11-18 15:41:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:41:52,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 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 167 [2024-11-18 15:41:52,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:52,146 INFO L225 Difference]: With dead ends: 5092 [2024-11-18 15:41:52,147 INFO L226 Difference]: Without dead ends: 2485 [2024-11-18 15:41:52,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:41:52,160 INFO L432 NwaCegarLoop]: 4591 mSDtfsCounter, 558 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 8613 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:52,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 8613 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:41:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2024-11-18 15:41:52,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2485. [2024-11-18 15:41:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2454 states have internal predecessors, (4473), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 15:41:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 4523 transitions. [2024-11-18 15:41:52,285 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 4523 transitions. Word has length 167 [2024-11-18 15:41:52,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:52,286 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 4523 transitions. [2024-11-18 15:41:52,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 4523 transitions. [2024-11-18 15:41:52,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:52,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:52,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:52,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:41:52,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:52,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash 787852370, now seen corresponding path program 1 times [2024-11-18 15:41:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979213649] [2024-11-18 15:41:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:52,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:52,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979213649] [2024-11-18 15:41:52,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979213649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:52,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:52,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:41:52,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407638445] [2024-11-18 15:41:52,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:52,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:41:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:41:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:41:52,550 INFO L87 Difference]: Start difference. First operand 2485 states and 4523 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:53,159 INFO L93 Difference]: Finished difference Result 3219 states and 5679 transitions. [2024-11-18 15:41:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:41:53,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:53,171 INFO L225 Difference]: With dead ends: 3219 [2024-11-18 15:41:53,171 INFO L226 Difference]: Without dead ends: 2874 [2024-11-18 15:41:53,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:53,175 INFO L432 NwaCegarLoop]: 4446 mSDtfsCounter, 5035 mSDsluCounter, 9140 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 13586 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:53,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 13586 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:41:53,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2024-11-18 15:41:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2847. [2024-11-18 15:41:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2787 states have (on average 1.794043774668102) internal successors, (5000), 2790 states have internal predecessors, (5000), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-18 15:41:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 5091 transitions. [2024-11-18 15:41:53,420 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 5091 transitions. Word has length 167 [2024-11-18 15:41:53,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:53,421 INFO L471 AbstractCegarLoop]: Abstraction has 2847 states and 5091 transitions. [2024-11-18 15:41:53,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 5091 transitions. [2024-11-18 15:41:53,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:53,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:53,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:53,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:41:53,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:53,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1787438550, now seen corresponding path program 1 times [2024-11-18 15:41:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:53,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269485323] [2024-11-18 15:41:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:53,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:53,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269485323] [2024-11-18 15:41:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269485323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515396270] [2024-11-18 15:41:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:53,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:53,669 INFO L87 Difference]: Start difference. First operand 2847 states and 5091 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:54,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:54,845 INFO L93 Difference]: Finished difference Result 4014 states and 6948 transitions. [2024-11-18 15:41:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:54,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:54,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:54,857 INFO L225 Difference]: With dead ends: 4014 [2024-11-18 15:41:54,857 INFO L226 Difference]: Without dead ends: 3307 [2024-11-18 15:41:54,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:41:54,860 INFO L432 NwaCegarLoop]: 4705 mSDtfsCounter, 5043 mSDsluCounter, 14174 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 18879 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:54,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 18879 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 15:41:54,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2024-11-18 15:41:54,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3184. [2024-11-18 15:41:54,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3097 states have (on average 1.7684856312560542) internal successors, (5477), 3101 states have internal predecessors, (5477), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-18 15:41:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 5611 transitions. [2024-11-18 15:41:54,934 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 5611 transitions. Word has length 167 [2024-11-18 15:41:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:54,934 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 5611 transitions. [2024-11-18 15:41:54,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 5611 transitions. [2024-11-18 15:41:54,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:54,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:54,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:54,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:41:54,937 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:54,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2125726100, now seen corresponding path program 1 times [2024-11-18 15:41:54,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140956718] [2024-11-18 15:41:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:54,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:55,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:55,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140956718] [2024-11-18 15:41:55,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140956718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:55,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:55,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:55,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901622335] [2024-11-18 15:41:55,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:55,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:55,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:55,093 INFO L87 Difference]: Start difference. First operand 3184 states and 5611 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:55,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:55,863 INFO L93 Difference]: Finished difference Result 5089 states and 8635 transitions. [2024-11-18 15:41:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:55,879 INFO L225 Difference]: With dead ends: 5089 [2024-11-18 15:41:55,879 INFO L226 Difference]: Without dead ends: 4045 [2024-11-18 15:41:55,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:41:55,885 INFO L432 NwaCegarLoop]: 4701 mSDtfsCounter, 5038 mSDsluCounter, 14162 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 18863 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:55,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5057 Valid, 18863 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:41:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2024-11-18 15:41:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 3903. [2024-11-18 15:41:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3760 states have (on average 1.7324468085106384) internal successors, (6514), 3768 states have internal predecessors, (6514), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-18 15:41:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 6740 transitions. [2024-11-18 15:41:56,000 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 6740 transitions. Word has length 167 [2024-11-18 15:41:56,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:56,001 INFO L471 AbstractCegarLoop]: Abstraction has 3903 states and 6740 transitions. [2024-11-18 15:41:56,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:56,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 6740 transitions. [2024-11-18 15:41:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:56,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:56,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:56,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:41:56,004 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:56,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1742686698, now seen corresponding path program 1 times [2024-11-18 15:41:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:56,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161769563] [2024-11-18 15:41:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:56,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:56,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:56,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161769563] [2024-11-18 15:41:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161769563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:56,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:56,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:56,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476499205] [2024-11-18 15:41:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:56,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:56,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:56,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:56,173 INFO L87 Difference]: Start difference. First operand 3903 states and 6740 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:57,054 INFO L93 Difference]: Finished difference Result 7414 states and 12362 transitions. [2024-11-18 15:41:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:57,075 INFO L225 Difference]: With dead ends: 7414 [2024-11-18 15:41:57,075 INFO L226 Difference]: Without dead ends: 5651 [2024-11-18 15:41:57,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:41:57,082 INFO L432 NwaCegarLoop]: 4698 mSDtfsCounter, 5033 mSDsluCounter, 14153 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5052 SdHoareTripleChecker+Valid, 18851 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:57,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5052 Valid, 18851 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2024-11-18 15:41:57,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5470. [2024-11-18 15:41:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5209 states have (on average 1.694375119984642) internal successors, (8826), 5231 states have internal predecessors, (8826), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-18 15:41:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 9260 transitions. [2024-11-18 15:41:57,225 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 9260 transitions. Word has length 167 [2024-11-18 15:41:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:57,225 INFO L471 AbstractCegarLoop]: Abstraction has 5470 states and 9260 transitions. [2024-11-18 15:41:57,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 9260 transitions. [2024-11-18 15:41:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:57,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:57,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:57,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:41:57,230 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:57,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2011851092, now seen corresponding path program 1 times [2024-11-18 15:41:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:57,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934658551] [2024-11-18 15:41:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:57,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:57,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934658551] [2024-11-18 15:41:57,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934658551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:57,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:57,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:57,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434738325] [2024-11-18 15:41:57,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:57,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:57,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:57,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:57,348 INFO L87 Difference]: Start difference. First operand 5470 states and 9260 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:58,280 INFO L93 Difference]: Finished difference Result 12561 states and 20852 transitions. [2024-11-18 15:41:58,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:58,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:58,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:58,337 INFO L225 Difference]: With dead ends: 12561 [2024-11-18 15:41:58,338 INFO L226 Difference]: Without dead ends: 9231 [2024-11-18 15:41:58,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:41:58,352 INFO L432 NwaCegarLoop]: 4695 mSDtfsCounter, 5028 mSDsluCounter, 14144 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 18839 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:58,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 18839 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:58,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9231 states. [2024-11-18 15:41:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 8973. [2024-11-18 15:41:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8973 states, 8458 states have (on average 1.6706077086781745) internal successors, (14130), 8526 states have internal predecessors, (14130), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-18 15:41:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 15076 transitions. [2024-11-18 15:41:58,607 INFO L78 Accepts]: Start accepts. Automaton has 8973 states and 15076 transitions. Word has length 167 [2024-11-18 15:41:58,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:58,608 INFO L471 AbstractCegarLoop]: Abstraction has 8973 states and 15076 transitions. [2024-11-18 15:41:58,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8973 states and 15076 transitions. [2024-11-18 15:41:58,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:41:58,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:58,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:58,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:41:58,613 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:58,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1855870550, now seen corresponding path program 1 times [2024-11-18 15:41:58,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:58,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791980384] [2024-11-18 15:41:58,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:58,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:41:58,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791980384] [2024-11-18 15:41:58,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791980384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:58,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:58,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629458824] [2024-11-18 15:41:58,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:58,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:58,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:58,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:58,781 INFO L87 Difference]: Start difference. First operand 8973 states and 15076 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:41:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:59,863 INFO L93 Difference]: Finished difference Result 24272 states and 40918 transitions. [2024-11-18 15:41:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:59,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:41:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:59,925 INFO L225 Difference]: With dead ends: 24272 [2024-11-18 15:41:59,925 INFO L226 Difference]: Without dead ends: 17439 [2024-11-18 15:41:59,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:41:59,951 INFO L432 NwaCegarLoop]: 4692 mSDtfsCounter, 5023 mSDsluCounter, 14135 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 18827 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:59,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5042 Valid, 18827 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:59,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17439 states. [2024-11-18 15:42:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17439 to 17032. [2024-11-18 15:42:00,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17032 states, 15955 states have (on average 1.6718270134753996) internal successors, (26674), 16169 states have internal predecessors, (26674), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-18 15:42:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17032 states to 17032 states and 29028 transitions. [2024-11-18 15:42:00,397 INFO L78 Accepts]: Start accepts. Automaton has 17032 states and 29028 transitions. Word has length 167 [2024-11-18 15:42:00,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:42:00,397 INFO L471 AbstractCegarLoop]: Abstraction has 17032 states and 29028 transitions. [2024-11-18 15:42:00,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 17032 states and 29028 transitions. [2024-11-18 15:42:00,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:42:00,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:42:00,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:42:00,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:42:00,494 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:42:00,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:42:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2028486380, now seen corresponding path program 1 times [2024-11-18 15:42:00,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:42:00,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511663407] [2024-11-18 15:42:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:42:00,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:42:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:42:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:42:00,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:42:00,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511663407] [2024-11-18 15:42:00,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511663407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:42:00,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:42:00,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:42:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542727937] [2024-11-18 15:42:00,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:42:00,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:42:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:42:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:42:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:42:00,612 INFO L87 Difference]: Start difference. First operand 17032 states and 29028 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:42:01,215 INFO L93 Difference]: Finished difference Result 36334 states and 63243 transitions. [2024-11-18 15:42:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:42:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:42:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:42:01,286 INFO L225 Difference]: With dead ends: 36334 [2024-11-18 15:42:01,286 INFO L226 Difference]: Without dead ends: 21442 [2024-11-18 15:42:01,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:42:01,331 INFO L432 NwaCegarLoop]: 4376 mSDtfsCounter, 4717 mSDsluCounter, 8607 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 12983 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:42:01,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 12983 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:42:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21442 states. [2024-11-18 15:42:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21442 to 17032. [2024-11-18 15:42:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17032 states, 15955 states have (on average 1.6697586963334379) internal successors, (26641), 16169 states have internal predecessors, (26641), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-18 15:42:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17032 states to 17032 states and 28995 transitions. [2024-11-18 15:42:02,092 INFO L78 Accepts]: Start accepts. Automaton has 17032 states and 28995 transitions. Word has length 167 [2024-11-18 15:42:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:42:02,093 INFO L471 AbstractCegarLoop]: Abstraction has 17032 states and 28995 transitions. [2024-11-18 15:42:02,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 17032 states and 28995 transitions. [2024-11-18 15:42:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:42:02,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:42:02,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:42:02,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:42:02,106 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:42:02,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:42:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 130597714, now seen corresponding path program 1 times [2024-11-18 15:42:02,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:42:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299220771] [2024-11-18 15:42:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:42:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:42:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:42:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:42:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:42:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299220771] [2024-11-18 15:42:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299220771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:42:02,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:42:02,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:42:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22917440] [2024-11-18 15:42:02,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:42:02,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:42:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:42:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:42:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:42:02,269 INFO L87 Difference]: Start difference. First operand 17032 states and 28995 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:03,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:42:03,599 INFO L93 Difference]: Finished difference Result 51175 states and 89161 transitions. [2024-11-18 15:42:03,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:42:03,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:42:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:42:03,733 INFO L225 Difference]: With dead ends: 51175 [2024-11-18 15:42:03,733 INFO L226 Difference]: Without dead ends: 36283 [2024-11-18 15:42:03,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:42:03,788 INFO L432 NwaCegarLoop]: 4680 mSDtfsCounter, 5007 mSDsluCounter, 14102 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 18782 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:42:03,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5026 Valid, 18782 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:42:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36283 states. [2024-11-18 15:42:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36283 to 35661. [2024-11-18 15:42:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35661 states, 33298 states have (on average 1.6882995975734278) internal successors, (56217), 33966 states have internal predecessors, (56217), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-18 15:42:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35661 states to 35661 states and 62923 transitions. [2024-11-18 15:42:05,201 INFO L78 Accepts]: Start accepts. Automaton has 35661 states and 62923 transitions. Word has length 167 [2024-11-18 15:42:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:42:05,201 INFO L471 AbstractCegarLoop]: Abstraction has 35661 states and 62923 transitions. [2024-11-18 15:42:05,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:05,201 INFO L276 IsEmpty]: Start isEmpty. Operand 35661 states and 62923 transitions. [2024-11-18 15:42:05,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:42:05,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:42:05,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:42:05,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:42:05,213 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:42:05,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:42:05,213 INFO L85 PathProgramCache]: Analyzing trace with hash 200245588, now seen corresponding path program 1 times [2024-11-18 15:42:05,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:42:05,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867499020] [2024-11-18 15:42:05,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:42:05,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:42:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:42:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:42:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:42:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867499020] [2024-11-18 15:42:05,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867499020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:42:05,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:42:05,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:42:05,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300425471] [2024-11-18 15:42:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:42:05,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:42:05,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:42:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:42:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:42:05,307 INFO L87 Difference]: Start difference. First operand 35661 states and 62923 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:42:08,418 INFO L93 Difference]: Finished difference Result 115072 states and 211619 transitions. [2024-11-18 15:42:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:42:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:42:08,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:42:08,848 INFO L225 Difference]: With dead ends: 115072 [2024-11-18 15:42:08,848 INFO L226 Difference]: Without dead ends: 81551 [2024-11-18 15:42:09,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:42:09,084 INFO L432 NwaCegarLoop]: 4677 mSDtfsCounter, 5002 mSDsluCounter, 14093 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 18770 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:42:09,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 18770 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:42:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81551 states. [2024-11-18 15:42:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81551 to 80452. [2024-11-18 15:42:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80452 states, 75031 states have (on average 1.718556330050246) internal successors, (128945), 77093 states have internal predecessors, (128945), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-18 15:42:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80452 states to 80452 states and 150499 transitions. [2024-11-18 15:42:12,787 INFO L78 Accepts]: Start accepts. Automaton has 80452 states and 150499 transitions. Word has length 167 [2024-11-18 15:42:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:42:12,788 INFO L471 AbstractCegarLoop]: Abstraction has 80452 states and 150499 transitions. [2024-11-18 15:42:12,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 80452 states and 150499 transitions. [2024-11-18 15:42:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:42:12,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:42:12,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:42:12,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:42:12,835 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:42:12,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:42:12,837 INFO L85 PathProgramCache]: Analyzing trace with hash 618134290, now seen corresponding path program 1 times [2024-11-18 15:42:12,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:42:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863105579] [2024-11-18 15:42:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:42:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:42:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:42:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:42:13,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:42:13,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863105579] [2024-11-18 15:42:13,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863105579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:42:13,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:42:13,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:42:13,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749730395] [2024-11-18 15:42:13,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:42:13,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:42:13,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:42:13,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:42:13,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:42:13,031 INFO L87 Difference]: Start difference. First operand 80452 states and 150499 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:42:18,869 INFO L93 Difference]: Finished difference Result 271479 states and 538553 transitions. [2024-11-18 15:42:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:42:18,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 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 167 [2024-11-18 15:42:18,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:42:20,246 INFO L225 Difference]: With dead ends: 271479 [2024-11-18 15:42:20,246 INFO L226 Difference]: Without dead ends: 193167 [2024-11-18 15:42:20,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:42:20,533 INFO L432 NwaCegarLoop]: 4674 mSDtfsCounter, 4997 mSDsluCounter, 14084 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5016 SdHoareTripleChecker+Valid, 18758 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:42:20,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5016 Valid, 18758 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:42:20,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193167 states. [2024-11-18 15:42:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193167 to 191175. [2024-11-18 15:42:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191175 states, 178180 states have (on average 1.75241328993153) internal successors, (312245), 184488 states have internal predecessors, (312245), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-11-18 15:42:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191175 states to 191175 states and 388071 transitions. [2024-11-18 15:42:30,593 INFO L78 Accepts]: Start accepts. Automaton has 191175 states and 388071 transitions. Word has length 167 [2024-11-18 15:42:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:42:30,593 INFO L471 AbstractCegarLoop]: Abstraction has 191175 states and 388071 transitions. [2024-11-18 15:42:30,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:42:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 191175 states and 388071 transitions. [2024-11-18 15:42:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 15:42:30,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:42:30,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:42:30,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:42:30,634 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:42:30,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:42:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2017087892, now seen corresponding path program 1 times [2024-11-18 15:42:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:42:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209864895] [2024-11-18 15:42:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:42:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:42:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:42:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:42:30,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:42:30,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209864895] [2024-11-18 15:42:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209864895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:42:30,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:42:30,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:42:30,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403250400] [2024-11-18 15:42:30,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:42:30,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:42:30,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:42:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:42:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:42:30,742 INFO L87 Difference]: Start difference. First operand 191175 states and 388071 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)