./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a591e0388ece712c75839bd5d84404e2239aa3c25676baafcef8f3340008bf9e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:23:41,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:23:41,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:23:41,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:23:41,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:23:41,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:23:41,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:23:41,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:23:41,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:23:41,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:23:41,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:23:41,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:23:41,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:23:41,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:23:41,579 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:23:41,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:23:41,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:23:41,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:23:41,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:23:41,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:23:41,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:23:41,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:23:41,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:23:41,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:23:41,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:23:41,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:23:41,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:23:41,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:23:41,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:23:41,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:23:41,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:23:41,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:23:41,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:23:41,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:23:41,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:23:41,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:23:41,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:23:41,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:23:41,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:23:41,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:23:41,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:23:41,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:23:41,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a591e0388ece712c75839bd5d84404e2239aa3c25676baafcef8f3340008bf9e [2024-11-22 03:23:41,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:23:41,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:23:41,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:23:41,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:23:41,898 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:23:41,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-1.c [2024-11-22 03:23:43,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:23:44,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:23:44,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-1.c [2024-11-22 03:23:44,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f611211d2/6f18257641bb472583375ff3c4cb1a87/FLAG49e8e4266 [2024-11-22 03:23:44,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f611211d2/6f18257641bb472583375ff3c4cb1a87 [2024-11-22 03:23:44,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:23:44,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:23:44,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:23:44,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:23:44,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:23:44,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:23:44" (1/1) ... [2024-11-22 03:23:44,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@983e428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:44, skipping insertion in model container [2024-11-22 03:23:44,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:23:44" (1/1) ... [2024-11-22 03:23:44,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:23:46,275 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_label45+token_ring.05.cil-1.c[380323,380336] [2024-11-22 03:23:46,312 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_label45+token_ring.05.cil-1.c[383339,383352] [2024-11-22 03:23:46,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:23:46,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:23:47,339 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_label45+token_ring.05.cil-1.c[380323,380336] [2024-11-22 03:23:47,345 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_label45+token_ring.05.cil-1.c[383339,383352] [2024-11-22 03:23:47,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:23:47,422 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:23:47,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47 WrapperNode [2024-11-22 03:23:47,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:23:47,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:23:47,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:23:47,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:23:47,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:47,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,220 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-22 03:23:48,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:23:48,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:23:48,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:23:48,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:23:48,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,468 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]. [2024-11-22 03:23:48,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:23:48,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:23:48,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:23:48,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:23:48,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (1/1) ... [2024-11-22 03:23:48,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:23:48,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:23:48,988 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) [2024-11-22 03:23:48,991 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 [2024-11-22 03:23:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:23:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:23:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:23:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:23:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:23:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:23:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:23:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:23:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:23:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:23:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:23:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:23:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:23:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:23:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:23:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:23:49,177 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:23:49,179 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:23:57,264 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-22 03:23:57,265 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:23:57,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:23:57,342 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-22 03:23:57,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:23:57 BoogieIcfgContainer [2024-11-22 03:23:57,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:23:57,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:23:57,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:23:57,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:23:57,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:23:44" (1/3) ... [2024-11-22 03:23:57,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b1e6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:23:57, skipping insertion in model container [2024-11-22 03:23:57,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:23:47" (2/3) ... [2024-11-22 03:23:57,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b1e6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:23:57, skipping insertion in model container [2024-11-22 03:23:57,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:23:57" (3/3) ... [2024-11-22 03:23:57,353 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.05.cil-1.c [2024-11-22 03:23:57,369 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:23:57,369 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:23:57,492 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:23:57,499 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;@4ddd9beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:23:57,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:23:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 03:23:57,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:23:57,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:57,527 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] [2024-11-22 03:23:57,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:57,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:57,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-22 03:23:57,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403004448] [2024-11-22 03:23:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:57,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:57,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403004448] [2024-11-22 03:23:57,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403004448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:57,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:57,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:23:57,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924096674] [2024-11-22 03:23:57,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:57,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:23:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:23:57,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:23:57,971 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-22 03:23:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:58,200 INFO L93 Difference]: Finished difference Result 4784 states and 8825 transitions. [2024-11-22 03:23:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:23:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 101 [2024-11-22 03:23:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:58,240 INFO L225 Difference]: With dead ends: 4784 [2024-11-22 03:23:58,240 INFO L226 Difference]: Without dead ends: 2329 [2024-11-22 03:23:58,249 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 [2024-11-22 03:23:58,253 INFO L432 NwaCegarLoop]: 4339 mSDtfsCounter, 310 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:58,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 8361 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:23:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-22 03:23:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-22 03:23:58,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 03:23:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-22 03:23:58,436 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-22 03:23:58,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:58,437 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-22 03:23:58,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-22 03:23:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-22 03:23:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:23:58,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:58,444 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] [2024-11-22 03:23:58,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:23:58,445 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-22 03:23:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458502112] [2024-11-22 03:23:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:58,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:58,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458502112] [2024-11-22 03:23:58,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458502112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:58,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:58,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:23:58,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903198064] [2024-11-22 03:23:58,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:58,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:23:58,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:58,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:23:58,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:23:58,759 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-22 03:23:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:23:59,386 INFO L93 Difference]: Finished difference Result 2739 states and 4899 transitions. [2024-11-22 03:23:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:23:59,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-22 03:23:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:23:59,406 INFO L225 Difference]: With dead ends: 2739 [2024-11-22 03:23:59,406 INFO L226 Difference]: Without dead ends: 2544 [2024-11-22 03:23:59,411 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 [2024-11-22 03:23:59,412 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4519 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:23:59,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 12725 Invalid, 387 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:23:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-22 03:23:59,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2529. [2024-11-22 03:23:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-22 03:23:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4575 transitions. [2024-11-22 03:23:59,503 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4575 transitions. Word has length 101 [2024-11-22 03:23:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:23:59,505 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4575 transitions. [2024-11-22 03:23:59,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-22 03:23:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4575 transitions. [2024-11-22 03:23:59,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:23:59,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:23:59,512 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] [2024-11-22 03:23:59,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:23:59,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:23:59,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:23:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-22 03:23:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:23:59,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111668026] [2024-11-22 03:23:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:23:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:23:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:23:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:23:59,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:23:59,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111668026] [2024-11-22 03:23:59,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111668026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:23:59,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:23:59,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:23:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42540977] [2024-11-22 03:23:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:23:59,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:23:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:23:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:23:59,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:23:59,768 INFO L87 Difference]: Start difference. First operand 2529 states and 4575 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:00,454 INFO L93 Difference]: Finished difference Result 3174 states and 5568 transitions. [2024-11-22 03:24:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:00,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:00,470 INFO L225 Difference]: With dead ends: 3174 [2024-11-22 03:24:00,471 INFO L226 Difference]: Without dead ends: 2779 [2024-11-22 03:24:00,474 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 [2024-11-22 03:24:00,476 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 4515 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:00,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 17451 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:24:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2024-11-22 03:24:00,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2716. [2024-11-22 03:24:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-22 03:24:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4855 transitions. [2024-11-22 03:24:00,558 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4855 transitions. Word has length 101 [2024-11-22 03:24:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:00,558 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4855 transitions. [2024-11-22 03:24:00,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4855 transitions. [2024-11-22 03:24:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:00,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:00,561 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] [2024-11-22 03:24:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:24:00,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-22 03:24:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199656646] [2024-11-22 03:24:00,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199656646] [2024-11-22 03:24:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199656646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:00,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:00,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:00,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157433516] [2024-11-22 03:24:00,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:00,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:00,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:00,704 INFO L87 Difference]: Start difference. First operand 2716 states and 4855 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:01,429 INFO L93 Difference]: Finished difference Result 3755 states and 6447 transitions. [2024-11-22 03:24:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:01,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:01,445 INFO L225 Difference]: With dead ends: 3755 [2024-11-22 03:24:01,445 INFO L226 Difference]: Without dead ends: 3173 [2024-11-22 03:24:01,448 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 [2024-11-22 03:24:01,449 INFO L432 NwaCegarLoop]: 4355 mSDtfsCounter, 4507 mSDsluCounter, 13066 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 17421 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:01,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 17421 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:24:01,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-22 03:24:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3108. [2024-11-22 03:24:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2995 states have (on average 1.7642737896494156) internal successors, (5284), 3003 states have internal predecessors, (5284), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-22 03:24:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 5450 transitions. [2024-11-22 03:24:01,551 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 5450 transitions. Word has length 101 [2024-11-22 03:24:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:01,552 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 5450 transitions. [2024-11-22 03:24:01,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 5450 transitions. [2024-11-22 03:24:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:01,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:01,555 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] [2024-11-22 03:24:01,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:24:01,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:01,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:01,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-22 03:24:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:01,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856201878] [2024-11-22 03:24:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:01,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:01,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856201878] [2024-11-22 03:24:01,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856201878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:01,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:01,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:01,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190135513] [2024-11-22 03:24:01,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:01,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:01,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:01,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:01,714 INFO L87 Difference]: Start difference. First operand 3108 states and 5450 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:02,349 INFO L93 Difference]: Finished difference Result 4995 states and 8364 transitions. [2024-11-22 03:24:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:02,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:02,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:02,372 INFO L225 Difference]: With dead ends: 4995 [2024-11-22 03:24:02,372 INFO L226 Difference]: Without dead ends: 4021 [2024-11-22 03:24:02,378 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 [2024-11-22 03:24:02,379 INFO L432 NwaCegarLoop]: 4352 mSDtfsCounter, 4502 mSDsluCounter, 13057 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 17409 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:02,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 17409 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:24:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2024-11-22 03:24:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3943. [2024-11-22 03:24:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3736 states have (on average 1.7184154175588866) internal successors, (6420), 3758 states have internal predecessors, (6420), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-22 03:24:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 6746 transitions. [2024-11-22 03:24:02,530 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 6746 transitions. Word has length 101 [2024-11-22 03:24:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:02,531 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 6746 transitions. [2024-11-22 03:24:02,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 6746 transitions. [2024-11-22 03:24:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:02,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:02,534 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] [2024-11-22 03:24:02,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:24:02,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:02,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:02,536 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-22 03:24:02,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:02,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556471206] [2024-11-22 03:24:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:02,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:02,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:02,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556471206] [2024-11-22 03:24:02,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556471206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:02,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:02,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:02,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409386328] [2024-11-22 03:24:02,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:02,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:02,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:02,666 INFO L87 Difference]: Start difference. First operand 3943 states and 6746 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:03,331 INFO L93 Difference]: Finished difference Result 7660 states and 12610 transitions. [2024-11-22 03:24:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:03,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:03,366 INFO L225 Difference]: With dead ends: 7660 [2024-11-22 03:24:03,366 INFO L226 Difference]: Without dead ends: 5851 [2024-11-22 03:24:03,376 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 [2024-11-22 03:24:03,379 INFO L432 NwaCegarLoop]: 4349 mSDtfsCounter, 4497 mSDsluCounter, 13048 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 17397 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:03,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 17397 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:24:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2024-11-22 03:24:03,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5748. [2024-11-22 03:24:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5335 states have (on average 1.6689784442361761) internal successors, (8904), 5403 states have internal predecessors, (8904), 243 states have call successors, (243), 102 states have call predecessors, (243), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-22 03:24:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 9646 transitions. [2024-11-22 03:24:03,619 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 9646 transitions. Word has length 101 [2024-11-22 03:24:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:03,620 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 9646 transitions. [2024-11-22 03:24:03,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 9646 transitions. [2024-11-22 03:24:03,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:03,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:03,628 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] [2024-11-22 03:24:03,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:24:03,628 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:03,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-22 03:24:03,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:03,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566211180] [2024-11-22 03:24:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:03,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:03,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566211180] [2024-11-22 03:24:03,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566211180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:03,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:03,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:03,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473940191] [2024-11-22 03:24:03,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:03,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:03,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:03,773 INFO L87 Difference]: Start difference. First operand 5748 states and 9646 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:04,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:04,774 INFO L93 Difference]: Finished difference Result 14111 states and 23277 transitions. [2024-11-22 03:24:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:04,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:04,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:04,844 INFO L225 Difference]: With dead ends: 14111 [2024-11-22 03:24:04,844 INFO L226 Difference]: Without dead ends: 10497 [2024-11-22 03:24:04,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:24:04,862 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 4681 mSDsluCounter, 12709 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 16917 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:04,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 16917 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:24:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2024-11-22 03:24:05,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 9661. [2024-11-22 03:24:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 8798 states have (on average 1.6335530802455103) internal successors, (14372), 9012 states have internal predecessors, (14372), 451 states have call successors, (451), 198 states have call predecessors, (451), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-22 03:24:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 16298 transitions. [2024-11-22 03:24:05,336 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 16298 transitions. Word has length 101 [2024-11-22 03:24:05,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:05,338 INFO L471 AbstractCegarLoop]: Abstraction has 9661 states and 16298 transitions. [2024-11-22 03:24:05,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 16298 transitions. [2024-11-22 03:24:05,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:05,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:05,347 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] [2024-11-22 03:24:05,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:24:05,347 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:05,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-22 03:24:05,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:05,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623800067] [2024-11-22 03:24:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:05,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:05,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:05,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623800067] [2024-11-22 03:24:05,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623800067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:05,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:05,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269854693] [2024-11-22 03:24:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:05,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:05,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:05,476 INFO L87 Difference]: Start difference. First operand 9661 states and 16298 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:06,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:06,924 INFO L93 Difference]: Finished difference Result 27202 states and 46795 transitions. [2024-11-22 03:24:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:06,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:06,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:07,056 INFO L225 Difference]: With dead ends: 27202 [2024-11-22 03:24:07,057 INFO L226 Difference]: Without dead ends: 19675 [2024-11-22 03:24:07,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:24:07,103 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4529 mSDsluCounter, 13016 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 17356 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:07,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 17356 Invalid, 772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:24:07,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19675 states. [2024-11-22 03:24:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19675 to 18170. [2024-11-22 03:24:08,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 16261 states have (on average 1.6173667056146608) internal successors, (26300), 16929 states have internal predecessors, (26300), 851 states have call successors, (851), 390 states have call predecessors, (851), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-22 03:24:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 32098 transitions. [2024-11-22 03:24:08,683 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 32098 transitions. Word has length 101 [2024-11-22 03:24:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:08,683 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 32098 transitions. [2024-11-22 03:24:08,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 32098 transitions. [2024-11-22 03:24:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:08,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:08,695 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] [2024-11-22 03:24:08,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:24:08,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:08,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-22 03:24:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:08,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793776453] [2024-11-22 03:24:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:08,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:08,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793776453] [2024-11-22 03:24:08,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793776453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:08,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:08,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:08,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998191059] [2024-11-22 03:24:08,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:08,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:08,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:08,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:08,821 INFO L87 Difference]: Start difference. First operand 18170 states and 32098 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:11,037 INFO L93 Difference]: Finished difference Result 55681 states and 104417 transitions. [2024-11-22 03:24:11,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:11,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:11,532 INFO L225 Difference]: With dead ends: 55681 [2024-11-22 03:24:11,532 INFO L226 Difference]: Without dead ends: 39645 [2024-11-22 03:24:11,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:24:11,625 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4586 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4605 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:11,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4605 Valid, 17348 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:24:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39645 states. [2024-11-22 03:24:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39645 to 37439. [2024-11-22 03:24:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37439 states, 32984 states have (on average 1.6138733931603202) internal successors, (53232), 35046 states have internal predecessors, (53232), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-22 03:24:14,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37439 states to 37439 states and 72854 transitions. [2024-11-22 03:24:14,268 INFO L78 Accepts]: Start accepts. Automaton has 37439 states and 72854 transitions. Word has length 101 [2024-11-22 03:24:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:14,269 INFO L471 AbstractCegarLoop]: Abstraction has 37439 states and 72854 transitions. [2024-11-22 03:24:14,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 37439 states and 72854 transitions. [2024-11-22 03:24:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:14,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:14,290 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] [2024-11-22 03:24:14,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:24:14,290 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-22 03:24:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:14,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889317058] [2024-11-22 03:24:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:14,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:14,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889317058] [2024-11-22 03:24:14,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889317058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:14,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:14,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:24:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698213457] [2024-11-22 03:24:14,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:14,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:24:14,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:14,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:24:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:24:14,414 INFO L87 Difference]: Start difference. First operand 37439 states and 72854 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:18,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:18,463 INFO L93 Difference]: Finished difference Result 119548 states and 258559 transitions. [2024-11-22 03:24:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:24:18,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:19,286 INFO L225 Difference]: With dead ends: 119548 [2024-11-22 03:24:19,286 INFO L226 Difference]: Without dead ends: 84243 [2024-11-22 03:24:19,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:24:19,395 INFO L432 NwaCegarLoop]: 4335 mSDtfsCounter, 4551 mSDsluCounter, 13001 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:19,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 17336 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:24:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84243 states. [2024-11-22 03:24:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84243 to 80888. [2024-11-22 03:24:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6117345990535692) internal successors, (112736), 76255 states have internal predecessors, (112736), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-22 03:24:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184454 transitions. [2024-11-22 03:24:26,191 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184454 transitions. Word has length 101 [2024-11-22 03:24:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:24:26,192 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184454 transitions. [2024-11-22 03:24:26,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184454 transitions. [2024-11-22 03:24:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 03:24:26,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:24:26,237 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] [2024-11-22 03:24:26,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:24:26,238 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:24:26,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:24:26,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-22 03:24:26,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:24:26,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374958315] [2024-11-22 03:24:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:24:26,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:24:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:24:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:24:26,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:24:26,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374958315] [2024-11-22 03:24:26,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374958315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:24:26,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:24:26,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:24:26,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95006402] [2024-11-22 03:24:26,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:24:26,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:24:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:24:26,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:24:26,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:24:26,347 INFO L87 Difference]: Start difference. First operand 80888 states and 184454 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-22 03:24:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:24:32,649 INFO L93 Difference]: Finished difference Result 172768 states and 437545 transitions. [2024-11-22 03:24:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:24:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-22 03:24:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:24:33,582 INFO L225 Difference]: With dead ends: 172768 [2024-11-22 03:24:33,582 INFO L226 Difference]: Without dead ends: 94014 [2024-11-22 03:24:33,784 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 [2024-11-22 03:24:33,785 INFO L432 NwaCegarLoop]: 4170 mSDtfsCounter, 4351 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 12423 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:24:33,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 12423 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:24:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94014 states.