./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.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_label49+token_ring.11.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 baa3d7d596cfacd752b448b2d94171196ab29c96dae98d968ce044a2cc25c48f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:30:18,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:30:18,267 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:30:18,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:30:18,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:30:18,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:30:18,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:30:18,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:30:18,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:30:18,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:30:18,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:30:18,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:30:18,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:30:18,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:30:18,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:30:18,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:30:18,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:30:18,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:30:18,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:30:18,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:30:18,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:30:18,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:30:18,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:30:18,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:30:18,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:30:18,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:30:18,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:30:18,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:30:18,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:30:18,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:30:18,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:30:18,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:30:18,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:30:18,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:30:18,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:30:18,325 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:30:18,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:30:18,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baa3d7d596cfacd752b448b2d94171196ab29c96dae98d968ce044a2cc25c48f [2024-11-22 03:30:18,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:30:18,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:30:18,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:30:18,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:30:18,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:30:18,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c [2024-11-22 03:30:19,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:30:20,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:30:20,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c [2024-11-22 03:30:20,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7314459c9/756a4d1c125e4da297d5c1aa810888a1/FLAG2b850393c [2024-11-22 03:30:20,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7314459c9/756a4d1c125e4da297d5c1aa810888a1 [2024-11-22 03:30:20,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:30:20,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:30:20,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:30:20,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:30:20,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:30:20,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:20" (1/1) ... [2024-11-22 03:30:20,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cbc36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:20, skipping insertion in model container [2024-11-22 03:30:20,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:20" (1/1) ... [2024-11-22 03:30:20,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:30:22,020 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_label49+token_ring.11.cil-1.c[380593,380606] [2024-11-22 03:30:22,044 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_label49+token_ring.11.cil-1.c[383339,383352] [2024-11-22 03:30:22,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:22,360 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:30:23,011 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_label49+token_ring.11.cil-1.c[380593,380606] [2024-11-22 03:30:23,017 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_label49+token_ring.11.cil-1.c[383339,383352] [2024-11-22 03:30:23,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:23,092 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:30:23,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23 WrapperNode [2024-11-22 03:30:23,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:30:23,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:23,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:30:23,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:30:23,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,452 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-11-22 03:30:23,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:23,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:30:23,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:30:23,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:30:23,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,652 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 03:30:23,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:23,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:24,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:30:24,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:30:24,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:30:24,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:30:24,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (1/1) ... [2024-11-22 03:30:24,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:30:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:30:24,082 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 03:30:24,084 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 03:30:24,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:30:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:30:24,163 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:30:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:30:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:30:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:30:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:30:24,327 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:30:24,329 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:30:31,037 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-11-22 03:30:31,038 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:30:31,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:30:31,101 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-22 03:30:31,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:31 BoogieIcfgContainer [2024-11-22 03:30:31,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:30:31,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:30:31,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:30:31,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:30:31,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:30:20" (1/3) ... [2024-11-22 03:30:31,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e8f465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:31, skipping insertion in model container [2024-11-22 03:30:31,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:23" (2/3) ... [2024-11-22 03:30:31,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e8f465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:31, skipping insertion in model container [2024-11-22 03:30:31,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:31" (3/3) ... [2024-11-22 03:30:31,110 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-1.c [2024-11-22 03:30:31,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:30:31,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:30:31,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:30:31,241 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;@3f10b24d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:30:31,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:30:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 03:30:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:31,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:31,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:31,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:31,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1643265123, now seen corresponding path program 1 times [2024-11-22 03:30:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:31,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066686194] [2024-11-22 03:30:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:31,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:31,629 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 03:30:31,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:31,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066686194] [2024-11-22 03:30:31,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066686194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:31,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:31,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:30:31,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817050529] [2024-11-22 03:30:31,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:31,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:30:31,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:31,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:30:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:30:31,660 INFO L87 Difference]: Start difference. First operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:31,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:31,826 INFO L93 Difference]: Finished difference Result 5107 states and 9373 transitions. [2024-11-22 03:30:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:30:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:31,860 INFO L225 Difference]: With dead ends: 5107 [2024-11-22 03:30:31,860 INFO L226 Difference]: Without dead ends: 2492 [2024-11-22 03:30:31,869 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 03:30:31,872 INFO L432 NwaCegarLoop]: 4603 mSDtfsCounter, 570 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:31,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 8625 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:30:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2024-11-22 03:30:31,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2492. [2024-11-22 03:30:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8245828245828246) internal successors, (4483), 2460 states have internal predecessors, (4483), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 03:30:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4535 transitions. [2024-11-22 03:30:31,998 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4535 transitions. Word has length 168 [2024-11-22 03:30:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:32,001 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 4535 transitions. [2024-11-22 03:30:32,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4535 transitions. [2024-11-22 03:30:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:32,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:32,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:32,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:30:32,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:32,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash -238073445, now seen corresponding path program 1 times [2024-11-22 03:30:32,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:32,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713699373] [2024-11-22 03:30:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:32,256 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 03:30:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:32,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713699373] [2024-11-22 03:30:32,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713699373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:32,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:32,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773513006] [2024-11-22 03:30:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:32,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:32,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:32,263 INFO L87 Difference]: Start difference. First operand 2492 states and 4535 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:32,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:32,953 INFO L93 Difference]: Finished difference Result 3240 states and 5715 transitions. [2024-11-22 03:30:32,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:30:32,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:32,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:32,965 INFO L225 Difference]: With dead ends: 3240 [2024-11-22 03:30:32,965 INFO L226 Difference]: Without dead ends: 2888 [2024-11-22 03:30:32,968 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 03:30:32,968 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5049 mSDsluCounter, 9075 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5068 SdHoareTripleChecker+Valid, 13485 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:32,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5068 Valid, 13485 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:30:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2024-11-22 03:30:33,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2859. [2024-11-22 03:30:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2797 states have (on average 1.794780121558813) internal successors, (5020), 2801 states have internal predecessors, (5020), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-22 03:30:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5113 transitions. [2024-11-22 03:30:33,027 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5113 transitions. Word has length 168 [2024-11-22 03:30:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:33,027 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5113 transitions. [2024-11-22 03:30:33,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5113 transitions. [2024-11-22 03:30:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:33,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:33,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:30:33,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 684327063, now seen corresponding path program 1 times [2024-11-22 03:30:33,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:33,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904266961] [2024-11-22 03:30:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:33,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:33,183 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 03:30:33,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:33,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904266961] [2024-11-22 03:30:33,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904266961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:33,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:33,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803239781] [2024-11-22 03:30:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:33,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:33,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:33,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:33,189 INFO L87 Difference]: Start difference. First operand 2859 states and 5113 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:33,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:33,990 INFO L93 Difference]: Finished difference Result 4045 states and 7004 transitions. [2024-11-22 03:30:33,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:34,005 INFO L225 Difference]: With dead ends: 4045 [2024-11-22 03:30:34,005 INFO L226 Difference]: Without dead ends: 3326 [2024-11-22 03:30:34,009 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 03:30:34,010 INFO L432 NwaCegarLoop]: 4727 mSDtfsCounter, 5056 mSDsluCounter, 14239 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 18966 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:34,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 18966 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2024-11-22 03:30:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3201. [2024-11-22 03:30:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3112 states have (on average 1.7696015424164524) internal successors, (5507), 3117 states have internal predecessors, (5507), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-22 03:30:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 5643 transitions. [2024-11-22 03:30:34,095 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 5643 transitions. Word has length 168 [2024-11-22 03:30:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:34,096 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 5643 transitions. [2024-11-22 03:30:34,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 5643 transitions. [2024-11-22 03:30:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:34,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:34,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:34,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:30:34,099 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:34,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1713660775, now seen corresponding path program 1 times [2024-11-22 03:30:34,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:34,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121375839] [2024-11-22 03:30:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:34,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:34,242 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 03:30:34,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:34,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121375839] [2024-11-22 03:30:34,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121375839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:34,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:34,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:34,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924116216] [2024-11-22 03:30:34,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:34,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:34,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:34,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:34,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:34,244 INFO L87 Difference]: Start difference. First operand 3201 states and 5643 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:34,945 INFO L93 Difference]: Finished difference Result 5135 states and 8721 transitions. [2024-11-22 03:30:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:34,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:34,961 INFO L225 Difference]: With dead ends: 5135 [2024-11-22 03:30:34,961 INFO L226 Difference]: Without dead ends: 4074 [2024-11-22 03:30:34,966 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 03:30:34,967 INFO L432 NwaCegarLoop]: 4723 mSDtfsCounter, 5051 mSDsluCounter, 14227 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 18950 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:34,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5070 Valid, 18950 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2024-11-22 03:30:35,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 3930. [2024-11-22 03:30:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 3785 states have (on average 1.7342140026420079) internal successors, (6564), 3794 states have internal predecessors, (6564), 107 states have call successors, (107), 31 states have call predecessors, (107), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-22 03:30:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 6792 transitions. [2024-11-22 03:30:35,076 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 6792 transitions. Word has length 168 [2024-11-22 03:30:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:35,076 INFO L471 AbstractCegarLoop]: Abstraction has 3930 states and 6792 transitions. [2024-11-22 03:30:35,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 6792 transitions. [2024-11-22 03:30:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:35,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:35,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:35,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:30:35,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:35,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:35,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1375373225, now seen corresponding path program 1 times [2024-11-22 03:30:35,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:35,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690177044] [2024-11-22 03:30:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:35,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:35,222 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 03:30:35,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:35,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690177044] [2024-11-22 03:30:35,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690177044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:35,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:35,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:35,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481554577] [2024-11-22 03:30:35,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:35,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:35,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:35,226 INFO L87 Difference]: Start difference. First operand 3930 states and 6792 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:36,016 INFO L93 Difference]: Finished difference Result 7490 states and 12508 transitions. [2024-11-22 03:30:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:36,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:36,039 INFO L225 Difference]: With dead ends: 7490 [2024-11-22 03:30:36,039 INFO L226 Difference]: Without dead ends: 5700 [2024-11-22 03:30:36,047 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 03:30:36,048 INFO L432 NwaCegarLoop]: 4720 mSDtfsCounter, 5046 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 18938 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:36,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5065 Valid, 18938 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-22 03:30:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5517. [2024-11-22 03:30:36,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5517 states, 5254 states have (on average 1.6969927674153027) internal successors, (8916), 5277 states have internal predecessors, (8916), 187 states have call successors, (187), 55 states have call predecessors, (187), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-22 03:30:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5517 states to 5517 states and 9352 transitions. [2024-11-22 03:30:36,196 INFO L78 Accepts]: Start accepts. Automaton has 5517 states and 9352 transitions. Word has length 168 [2024-11-22 03:30:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:36,197 INFO L471 AbstractCegarLoop]: Abstraction has 5517 states and 9352 transitions. [2024-11-22 03:30:36,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5517 states and 9352 transitions. [2024-11-22 03:30:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:36,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:36,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:36,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:30:36,200 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:36,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -948818727, now seen corresponding path program 1 times [2024-11-22 03:30:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389940485] [2024-11-22 03:30:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:36,332 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 03:30:36,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:36,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389940485] [2024-11-22 03:30:36,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389940485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:36,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:36,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:36,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233586050] [2024-11-22 03:30:36,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:36,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:36,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:36,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:36,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:36,422 INFO L87 Difference]: Start difference. First operand 5517 states and 9352 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:37,265 INFO L93 Difference]: Finished difference Result 12697 states and 21118 transitions. [2024-11-22 03:30:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:37,326 INFO L225 Difference]: With dead ends: 12697 [2024-11-22 03:30:37,326 INFO L226 Difference]: Without dead ends: 9320 [2024-11-22 03:30:37,342 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 03:30:37,344 INFO L432 NwaCegarLoop]: 4717 mSDtfsCounter, 5041 mSDsluCounter, 14209 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 18926 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:37,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 18926 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9320 states. [2024-11-22 03:30:37,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9320 to 9060. [2024-11-22 03:30:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 8543 states have (on average 1.67388505208943) internal successors, (14300), 8612 states have internal predecessors, (14300), 347 states have call successors, (347), 103 states have call predecessors, (347), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-22 03:30:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 15248 transitions. [2024-11-22 03:30:37,602 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 15248 transitions. Word has length 168 [2024-11-22 03:30:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:37,603 INFO L471 AbstractCegarLoop]: Abstraction has 9060 states and 15248 transitions. [2024-11-22 03:30:37,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:37,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 15248 transitions. [2024-11-22 03:30:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:37,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:37,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:37,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:30:37,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:37,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1489248233, now seen corresponding path program 1 times [2024-11-22 03:30:37,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:37,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308228832] [2024-11-22 03:30:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:37,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:37,736 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 03:30:37,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308228832] [2024-11-22 03:30:37,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308228832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:37,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:37,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:37,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063863724] [2024-11-22 03:30:37,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:37,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:37,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:37,739 INFO L87 Difference]: Start difference. First operand 9060 states and 15248 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:38,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:38,722 INFO L93 Difference]: Finished difference Result 24528 states and 41424 transitions. [2024-11-22 03:30:38,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:38,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:38,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:38,780 INFO L225 Difference]: With dead ends: 24528 [2024-11-22 03:30:38,780 INFO L226 Difference]: Without dead ends: 17608 [2024-11-22 03:30:38,803 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 03:30:38,804 INFO L432 NwaCegarLoop]: 4714 mSDtfsCounter, 5036 mSDsluCounter, 14200 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 18914 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:38,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 18914 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:38,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17608 states. [2024-11-22 03:30:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17608 to 17199. [2024-11-22 03:30:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17199 states, 16120 states have (on average 1.6751861042183622) internal successors, (27004), 16335 states have internal predecessors, (27004), 667 states have call successors, (667), 199 states have call predecessors, (667), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-22 03:30:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17199 states to 17199 states and 29360 transitions. [2024-11-22 03:30:39,257 INFO L78 Accepts]: Start accepts. Automaton has 17199 states and 29360 transitions. Word has length 168 [2024-11-22 03:30:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:39,258 INFO L471 AbstractCegarLoop]: Abstraction has 17199 states and 29360 transitions. [2024-11-22 03:30:39,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 17199 states and 29360 transitions. [2024-11-22 03:30:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:39,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:39,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:39,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:30:39,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:39,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1645228775, now seen corresponding path program 1 times [2024-11-22 03:30:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685197591] [2024-11-22 03:30:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:39,360 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 03:30:39,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:39,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685197591] [2024-11-22 03:30:39,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685197591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:39,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:39,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:39,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641052319] [2024-11-22 03:30:39,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:39,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:39,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:39,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:39,362 INFO L87 Difference]: Start difference. First operand 17199 states and 29360 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:40,146 INFO L93 Difference]: Finished difference Result 36668 states and 63907 transitions. [2024-11-22 03:30:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:30:40,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:40,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:40,224 INFO L225 Difference]: With dead ends: 36668 [2024-11-22 03:30:40,225 INFO L226 Difference]: Without dead ends: 21609 [2024-11-22 03:30:40,275 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 03:30:40,276 INFO L432 NwaCegarLoop]: 4387 mSDtfsCounter, 4730 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 13012 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:40,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4749 Valid, 13012 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:30:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21609 states. [2024-11-22 03:30:40,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21609 to 17199. [2024-11-22 03:30:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17199 states, 16120 states have (on average 1.6731389578163771) internal successors, (26971), 16335 states have internal predecessors, (26971), 667 states have call successors, (667), 199 states have call predecessors, (667), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-22 03:30:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17199 states to 17199 states and 29327 transitions. [2024-11-22 03:30:41,045 INFO L78 Accepts]: Start accepts. Automaton has 17199 states and 29327 transitions. Word has length 168 [2024-11-22 03:30:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:41,046 INFO L471 AbstractCegarLoop]: Abstraction has 17199 states and 29327 transitions. [2024-11-22 03:30:41,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 17199 states and 29327 transitions. [2024-11-22 03:30:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:41,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:41,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:41,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:30:41,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:41,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash 861868699, now seen corresponding path program 1 times [2024-11-22 03:30:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:41,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498809189] [2024-11-22 03:30:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:41,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:41,215 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 03:30:41,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:41,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498809189] [2024-11-22 03:30:41,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498809189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:41,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:41,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:41,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61173657] [2024-11-22 03:30:41,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:41,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:41,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:41,221 INFO L87 Difference]: Start difference. First operand 17199 states and 29327 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:42,673 INFO L93 Difference]: Finished difference Result 51671 states and 90147 transitions. [2024-11-22 03:30:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:42,832 INFO L225 Difference]: With dead ends: 51671 [2024-11-22 03:30:42,832 INFO L226 Difference]: Without dead ends: 36612 [2024-11-22 03:30:42,885 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 03:30:42,888 INFO L432 NwaCegarLoop]: 4702 mSDtfsCounter, 5020 mSDsluCounter, 14167 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 18869 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:42,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 18869 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36612 states. [2024-11-22 03:30:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36612 to 35988. [2024-11-22 03:30:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35988 states, 33623 states have (on average 1.69131249442346) internal successors, (56867), 34292 states have internal predecessors, (56867), 1307 states have call successors, (1307), 391 states have call predecessors, (1307), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-22 03:30:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35988 states to 35988 states and 63575 transitions. [2024-11-22 03:30:44,068 INFO L78 Accepts]: Start accepts. Automaton has 35988 states and 63575 transitions. Word has length 168 [2024-11-22 03:30:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:44,069 INFO L471 AbstractCegarLoop]: Abstraction has 35988 states and 63575 transitions. [2024-11-22 03:30:44,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 35988 states and 63575 transitions. [2024-11-22 03:30:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:44,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:44,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:44,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:30:44,083 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:44,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1274014503, now seen corresponding path program 1 times [2024-11-22 03:30:44,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:44,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347154778] [2024-11-22 03:30:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:44,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:44,200 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 03:30:44,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:44,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347154778] [2024-11-22 03:30:44,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347154778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:44,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:44,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:44,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959015325] [2024-11-22 03:30:44,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:44,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:44,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:44,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:44,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:44,204 INFO L87 Difference]: Start difference. First operand 35988 states and 63575 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:46,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:46,840 INFO L93 Difference]: Finished difference Result 116048 states and 213565 transitions. [2024-11-22 03:30:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:46,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:47,450 INFO L225 Difference]: With dead ends: 116048 [2024-11-22 03:30:47,450 INFO L226 Difference]: Without dead ends: 82200 [2024-11-22 03:30:47,512 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 03:30:47,513 INFO L432 NwaCegarLoop]: 4699 mSDtfsCounter, 5015 mSDsluCounter, 14158 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 18857 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:47,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 18857 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82200 states. [2024-11-22 03:30:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82200 to 81099. [2024-11-22 03:30:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81099 states, 75676 states have (on average 1.720955124478038) internal successors, (130235), 77739 states have internal predecessors, (130235), 2587 states have call successors, (2587), 775 states have call predecessors, (2587), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-22 03:30:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81099 states to 81099 states and 151791 transitions. [2024-11-22 03:30:50,561 INFO L78 Accepts]: Start accepts. Automaton has 81099 states and 151791 transitions. Word has length 168 [2024-11-22 03:30:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:50,561 INFO L471 AbstractCegarLoop]: Abstraction has 81099 states and 151791 transitions. [2024-11-22 03:30:50,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:50,561 INFO L276 IsEmpty]: Start isEmpty. Operand 81099 states and 151791 transitions. [2024-11-22 03:30:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:30:50,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:50,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:30:50,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:30:50,583 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:50,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:50,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1204366629, now seen corresponding path program 1 times [2024-11-22 03:30:50,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:50,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188692305] [2024-11-22 03:30:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:50,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:50,686 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 03:30:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188692305] [2024-11-22 03:30:50,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188692305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:50,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:50,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:50,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656560641] [2024-11-22 03:30:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:50,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:50,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:50,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:50,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:50,840 INFO L87 Difference]: Start difference. First operand 81099 states and 151791 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:56,197 INFO L93 Difference]: Finished difference Result 273415 states and 542419 transitions. [2024-11-22 03:30:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:56,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-22 03:30:56,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:57,253 INFO L225 Difference]: With dead ends: 273415 [2024-11-22 03:30:57,253 INFO L226 Difference]: Without dead ends: 194456 [2024-11-22 03:30:57,519 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 03:30:57,520 INFO L432 NwaCegarLoop]: 4696 mSDtfsCounter, 5010 mSDsluCounter, 14149 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 18845 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:57,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 18845 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:30:57,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194456 states. [2024-11-22 03:31:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194456 to 192462. [2024-11-22 03:31:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192462 states, 179465 states have (on average 1.754186052990834) internal successors, (314815), 185774 states have internal predecessors, (314815), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-11-22 03:31:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192462 states to 192462 states and 390643 transitions. [2024-11-22 03:31:07,195 INFO L78 Accepts]: Start accepts. Automaton has 192462 states and 390643 transitions. Word has length 168 [2024-11-22 03:31:07,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:31:07,196 INFO L471 AbstractCegarLoop]: Abstraction has 192462 states and 390643 transitions. [2024-11-22 03:31:07,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:31:07,197 INFO L276 IsEmpty]: Start isEmpty. Operand 192462 states and 390643 transitions. [2024-11-22 03:31:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 03:31:07,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:31:07,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:31:07,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:31:07,256 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:31:07,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:31:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash -786477927, now seen corresponding path program 1 times [2024-11-22 03:31:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:31:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047151046] [2024-11-22 03:31:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:31:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:31:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:31:07,364 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 03:31:07,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:31:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047151046] [2024-11-22 03:31:07,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047151046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:31:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:31:07,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:31:07,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88779715] [2024-11-22 03:31:07,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:31:07,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:31:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:31:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:31:07,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:31:07,369 INFO L87 Difference]: Start difference. First operand 192462 states and 390643 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)