./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3f3364fd5ba51681dbe9ac9cfcd9f114289823313a53e53a305bf8ae66907c7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:33:37,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:33:37,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:33:37,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:33:37,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:33:37,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:33:37,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:33:37,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:33:37,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:33:37,398 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:33:37,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:33:37,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:33:37,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:33:37,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:33:37,400 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:33:37,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:33:37,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:33:37,401 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:33:37,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:33:37,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:33:37,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:33:37,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:33:37,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:33:37,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:33:37,405 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:33:37,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:33:37,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:33:37,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:33:37,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:33:37,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:33:37,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:33:37,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:33:37,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:33:37,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:33:37,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:33:37,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:33:37,409 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:33:37,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:33:37,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:33:37,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:33:37,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:33:37,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:33:37,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3f3364fd5ba51681dbe9ac9cfcd9f114289823313a53e53a305bf8ae66907c7 [2024-10-14 04:33:37,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:33:37,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:33:37,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:33:37,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:33:37,714 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:33:37,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c [2024-10-14 04:33:39,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:33:39,777 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:33:39,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c [2024-10-14 04:33:39,838 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284e8ad60/4d543c6f065d401b90c149adb0dc38a1/FLAG4e7338baf [2024-10-14 04:33:40,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284e8ad60/4d543c6f065d401b90c149adb0dc38a1 [2024-10-14 04:33:40,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:33:40,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:33:40,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:33:40,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:33:40,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:33:40,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:33:40" (1/1) ... [2024-10-14 04:33:40,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32224932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:40, skipping insertion in model container [2024-10-14 04:33:40,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:33:40" (1/1) ... [2024-10-14 04:33:40,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:33:41,984 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2024-10-14 04:33:42,012 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2024-10-14 04:33:42,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:33:42,281 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:33:43,046 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[377612,377625] [2024-10-14 04:33:43,053 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.12.cil-2.c[383339,383352] [2024-10-14 04:33:43,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:33:43,144 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:33:43,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43 WrapperNode [2024-10-14 04:33:43,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:33:43,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:33:43,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:33:43,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:33:43,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,579 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2024-10-14 04:33:43,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:33:43,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:33:43,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:33:43,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:33:43,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,843 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 04:33:43,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:43,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:33:44,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:33:44,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:33:44,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:33:44,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (1/1) ... [2024-10-14 04:33:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:33:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:33:44,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:33:44,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:33:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:33:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:33:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:33:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:33:44,411 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:33:44,412 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:33:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:33:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:33:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:33:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:33:44,416 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:33:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:33:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:33:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:33:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:33:44,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:33:44,629 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:33:44,631 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:33:52,432 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2024-10-14 04:33:52,432 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:33:52,548 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:33:52,548 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-14 04:33:52,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:52 BoogieIcfgContainer [2024-10-14 04:33:52,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:33:52,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:33:52,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:33:52,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:33:52,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:33:40" (1/3) ... [2024-10-14 04:33:52,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd5c271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:33:52, skipping insertion in model container [2024-10-14 04:33:52,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:33:43" (2/3) ... [2024-10-14 04:33:52,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd5c271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:33:52, skipping insertion in model container [2024-10-14 04:33:52,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:52" (3/3) ... [2024-10-14 04:33:52,560 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.12.cil-2.c [2024-10-14 04:33:52,577 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:33:52,577 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:33:52,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:33:52,710 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;@608fbb25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:33:52,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:33:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:33:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:33:52,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:33:52,744 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] [2024-10-14 04:33:52,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:33:52,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:33:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1395407095, now seen corresponding path program 1 times [2024-10-14 04:33:52,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:33:52,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488988587] [2024-10-14 04:33:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:33:52,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:33:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:33:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:33:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:33:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:33:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:33:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:33:53,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:33:53,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488988587] [2024-10-14 04:33:53,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488988587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:33:53,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:33:53,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:33:53,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368163106] [2024-10-14 04:33:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:33:53,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:33:53,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:33:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:33:53,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:33:53,545 INFO L87 Difference]: Start difference. First operand has 2471 states, 2436 states have (on average 1.875615763546798) internal successors, (4569), 2439 states have internal predecessors, (4569), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:33:55,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:33:55,758 INFO L93 Difference]: Finished difference Result 5068 states and 9466 transitions. [2024-10-14 04:33:55,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:33:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:33:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:33:55,788 INFO L225 Difference]: With dead ends: 5068 [2024-10-14 04:33:55,788 INFO L226 Difference]: Without dead ends: 2597 [2024-10-14 04:33:55,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:33:55,802 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 979 mSDsluCounter, 12204 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 16461 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:33:55,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 16461 Invalid, 1126 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [56 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:33:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2024-10-14 04:33:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2024-10-14 04:33:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8368269625976161) internal successors, (4469), 2435 states have internal predecessors, (4469), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:33:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4521 transitions. [2024-10-14 04:33:55,969 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4521 transitions. Word has length 161 [2024-10-14 04:33:55,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:33:55,971 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 4521 transitions. [2024-10-14 04:33:55,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:33:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4521 transitions. [2024-10-14 04:33:55,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:33:55,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:33:55,977 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] [2024-10-14 04:33:55,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:33:55,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:33:55,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:33:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2006676153, now seen corresponding path program 1 times [2024-10-14 04:33:55,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:33:55,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479251252] [2024-10-14 04:33:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:33:55,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:33:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:33:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:33:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:33:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:33:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:33:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:33:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:33:56,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479251252] [2024-10-14 04:33:56,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479251252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:33:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:33:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:33:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074812828] [2024-10-14 04:33:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:33:56,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:33:56,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:33:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:33:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:33:56,259 INFO L87 Difference]: Start difference. First operand 2467 states and 4521 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:33:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:33:58,183 INFO L93 Difference]: Finished difference Result 2930 states and 5294 transitions. [2024-10-14 04:33:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:33:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:33:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:33:58,199 INFO L225 Difference]: With dead ends: 2930 [2024-10-14 04:33:58,199 INFO L226 Difference]: Without dead ends: 2597 [2024-10-14 04:33:58,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:33:58,203 INFO L432 NwaCegarLoop]: 4253 mSDtfsCounter, 967 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 16448 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:33:58,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 16448 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:33:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2024-10-14 04:33:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2467. [2024-10-14 04:33:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2433 states have (on average 1.8364159473900534) internal successors, (4468), 2435 states have internal predecessors, (4468), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 04:33:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4520 transitions. [2024-10-14 04:33:58,283 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4520 transitions. Word has length 161 [2024-10-14 04:33:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:33:58,285 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 4520 transitions. [2024-10-14 04:33:58,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:33:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4520 transitions. [2024-10-14 04:33:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:33:58,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:33:58,289 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] [2024-10-14 04:33:58,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:33:58,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:33:58,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:33:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash -965112197, now seen corresponding path program 1 times [2024-10-14 04:33:58,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:33:58,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989566280] [2024-10-14 04:33:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:33:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:33:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:33:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:33:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:33:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:33:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:33:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:33:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:33:58,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:33:58,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989566280] [2024-10-14 04:33:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989566280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:33:58,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:33:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:33:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933223940] [2024-10-14 04:33:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:33:58,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:33:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:33:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:33:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:33:58,667 INFO L87 Difference]: Start difference. First operand 2467 states and 4520 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:01,573 INFO L93 Difference]: Finished difference Result 3402 states and 6086 transitions. [2024-10-14 04:34:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:34:01,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:01,587 INFO L225 Difference]: With dead ends: 3402 [2024-10-14 04:34:01,587 INFO L226 Difference]: Without dead ends: 3074 [2024-10-14 04:34:01,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:34:01,590 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 5433 mSDsluCounter, 12655 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 16876 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:01,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 16876 Invalid, 2405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:34:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2024-10-14 04:34:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2815. [2024-10-14 04:34:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2753 states have (on average 1.8147475481293134) internal successors, (4996), 2756 states have internal predecessors, (4996), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-14 04:34:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 5093 transitions. [2024-10-14 04:34:01,681 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 5093 transitions. Word has length 161 [2024-10-14 04:34:01,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:01,681 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 5093 transitions. [2024-10-14 04:34:01,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 5093 transitions. [2024-10-14 04:34:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:01,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:01,684 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] [2024-10-14 04:34:01,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:34:01,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:01,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:01,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1451895109, now seen corresponding path program 1 times [2024-10-14 04:34:01,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:01,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777300135] [2024-10-14 04:34:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:01,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:01,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:02,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:02,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:02,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:02,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777300135] [2024-10-14 04:34:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777300135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:02,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:02,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951827255] [2024-10-14 04:34:02,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:02,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:02,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:02,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:02,039 INFO L87 Difference]: Start difference. First operand 2815 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:05,789 INFO L93 Difference]: Finished difference Result 4247 states and 7492 transitions. [2024-10-14 04:34:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:05,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:05,805 INFO L225 Difference]: With dead ends: 4247 [2024-10-14 04:34:05,805 INFO L226 Difference]: Without dead ends: 3571 [2024-10-14 04:34:05,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:05,810 INFO L432 NwaCegarLoop]: 4419 mSDtfsCounter, 5470 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5489 SdHoareTripleChecker+Valid, 21777 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:05,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5489 Valid, 21777 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 04:34:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2024-10-14 04:34:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3136. [2024-10-14 04:34:05,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3046 states have (on average 1.7957977675640184) internal successors, (5470), 3050 states have internal predecessors, (5470), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-14 04:34:05,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5611 transitions. [2024-10-14 04:34:05,919 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5611 transitions. Word has length 161 [2024-10-14 04:34:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:05,919 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 5611 transitions. [2024-10-14 04:34:05,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5611 transitions. [2024-10-14 04:34:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:05,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:05,922 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] [2024-10-14 04:34:05,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:34:05,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:05,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1055202365, now seen corresponding path program 1 times [2024-10-14 04:34:05,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:05,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769308772] [2024-10-14 04:34:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:06,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:06,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769308772] [2024-10-14 04:34:06,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769308772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:06,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:06,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:06,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335993667] [2024-10-14 04:34:06,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:06,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:06,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:06,370 INFO L87 Difference]: Start difference. First operand 3136 states and 5611 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:09,942 INFO L93 Difference]: Finished difference Result 5485 states and 9538 transitions. [2024-10-14 04:34:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:09,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:09,966 INFO L225 Difference]: With dead ends: 5485 [2024-10-14 04:34:09,966 INFO L226 Difference]: Without dead ends: 4488 [2024-10-14 04:34:09,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:09,973 INFO L432 NwaCegarLoop]: 4230 mSDtfsCounter, 5580 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:09,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5599 Valid, 21081 Invalid, 3190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 04:34:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4488 states. [2024-10-14 04:34:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4488 to 3779. [2024-10-14 04:34:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.766859344894027) internal successors, (6419), 3639 states have internal predecessors, (6419), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:34:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6652 transitions. [2024-10-14 04:34:10,148 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6652 transitions. Word has length 161 [2024-10-14 04:34:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:10,148 INFO L471 AbstractCegarLoop]: Abstraction has 3779 states and 6652 transitions. [2024-10-14 04:34:10,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6652 transitions. [2024-10-14 04:34:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:10,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:10,151 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] [2024-10-14 04:34:10,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:34:10,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:10,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1080680837, now seen corresponding path program 1 times [2024-10-14 04:34:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:10,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176729240] [2024-10-14 04:34:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:10,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:10,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:10,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176729240] [2024-10-14 04:34:10,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176729240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:10,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:10,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:10,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527131802] [2024-10-14 04:34:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:10,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:10,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:10,454 INFO L87 Difference]: Start difference. First operand 3779 states and 6652 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:12,253 INFO L93 Difference]: Finished difference Result 6118 states and 10572 transitions. [2024-10-14 04:34:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:34:12,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:12,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:12,273 INFO L225 Difference]: With dead ends: 6118 [2024-10-14 04:34:12,273 INFO L226 Difference]: Without dead ends: 4478 [2024-10-14 04:34:12,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:34:12,280 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 5192 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:12,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5212 Valid, 16690 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 04:34:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4478 states. [2024-10-14 04:34:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4478 to 3779. [2024-10-14 04:34:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7654830718414534) internal successors, (6414), 3639 states have internal predecessors, (6414), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:34:12,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6647 transitions. [2024-10-14 04:34:12,430 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6647 transitions. Word has length 161 [2024-10-14 04:34:12,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:12,430 INFO L471 AbstractCegarLoop]: Abstraction has 3779 states and 6647 transitions. [2024-10-14 04:34:12,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6647 transitions. [2024-10-14 04:34:12,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:12,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:12,434 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] [2024-10-14 04:34:12,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:34:12,435 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:12,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:12,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1011032963, now seen corresponding path program 1 times [2024-10-14 04:34:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:12,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816818256] [2024-10-14 04:34:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:12,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:12,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816818256] [2024-10-14 04:34:12,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816818256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:12,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:12,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775001071] [2024-10-14 04:34:12,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:12,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:12,718 INFO L87 Difference]: Start difference. First operand 3779 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:14,497 INFO L93 Difference]: Finished difference Result 6107 states and 10536 transitions. [2024-10-14 04:34:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:34:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:14,519 INFO L225 Difference]: With dead ends: 6107 [2024-10-14 04:34:14,519 INFO L226 Difference]: Without dead ends: 4467 [2024-10-14 04:34:14,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:34:14,527 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 5036 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:14,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5056 Valid, 20809 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:34:14,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4467 states. [2024-10-14 04:34:14,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4467 to 3779. [2024-10-14 04:34:14,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3633 states have (on average 1.7641067987888797) internal successors, (6409), 3639 states have internal predecessors, (6409), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-14 04:34:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 6642 transitions. [2024-10-14 04:34:14,675 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 6642 transitions. Word has length 161 [2024-10-14 04:34:14,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:14,676 INFO L471 AbstractCegarLoop]: Abstraction has 3779 states and 6642 transitions. [2024-10-14 04:34:14,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:14,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 6642 transitions. [2024-10-14 04:34:14,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:14,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:14,679 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] [2024-10-14 04:34:14,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:34:14,679 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:14,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 387920639, now seen corresponding path program 1 times [2024-10-14 04:34:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:14,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263170247] [2024-10-14 04:34:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:14,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:14,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:15,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:15,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:15,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:15,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263170247] [2024-10-14 04:34:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263170247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:15,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723118940] [2024-10-14 04:34:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:15,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:15,113 INFO L87 Difference]: Start difference. First operand 3779 states and 6642 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:18,593 INFO L93 Difference]: Finished difference Result 7839 states and 13357 transitions. [2024-10-14 04:34:18,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:18,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:18,621 INFO L225 Difference]: With dead ends: 7839 [2024-10-14 04:34:18,621 INFO L226 Difference]: Without dead ends: 6199 [2024-10-14 04:34:18,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:18,631 INFO L432 NwaCegarLoop]: 4417 mSDtfsCounter, 5453 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:18,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5472 Valid, 21775 Invalid, 3709 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 04:34:18,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2024-10-14 04:34:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 5080. [2024-10-14 04:34:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7254251347988387) internal successors, (8320), 4832 states have internal predecessors, (8320), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:34:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8743 transitions. [2024-10-14 04:34:18,871 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8743 transitions. Word has length 161 [2024-10-14 04:34:18,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:18,874 INFO L471 AbstractCegarLoop]: Abstraction has 5080 states and 8743 transitions. [2024-10-14 04:34:18,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8743 transitions. [2024-10-14 04:34:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:18,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:18,878 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] [2024-10-14 04:34:18,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:34:18,878 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:18,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1229519811, now seen corresponding path program 1 times [2024-10-14 04:34:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:18,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950369362] [2024-10-14 04:34:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:18,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:19,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:19,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:19,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:19,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:19,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:19,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950369362] [2024-10-14 04:34:19,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950369362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:19,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:19,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:19,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402658227] [2024-10-14 04:34:19,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:19,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:19,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:19,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:19,149 INFO L87 Difference]: Start difference. First operand 5080 states and 8743 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:21,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:21,064 INFO L93 Difference]: Finished difference Result 9165 states and 15533 transitions. [2024-10-14 04:34:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:34:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:21,082 INFO L225 Difference]: With dead ends: 9165 [2024-10-14 04:34:21,082 INFO L226 Difference]: Without dead ends: 6224 [2024-10-14 04:34:21,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:34:21,092 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 5035 mSDsluCounter, 16601 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5055 SdHoareTripleChecker+Valid, 20809 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:21,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5055 Valid, 20809 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:34:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2024-10-14 04:34:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5080. [2024-10-14 04:34:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4822 states have (on average 1.7235586893405226) internal successors, (8311), 4832 states have internal predecessors, (8311), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-14 04:34:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 8734 transitions. [2024-10-14 04:34:21,313 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 8734 transitions. Word has length 161 [2024-10-14 04:34:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:21,313 INFO L471 AbstractCegarLoop]: Abstraction has 5080 states and 8734 transitions. [2024-10-14 04:34:21,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 8734 transitions. [2024-10-14 04:34:21,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:21,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:21,318 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] [2024-10-14 04:34:21,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:34:21,318 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:21,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -866053313, now seen corresponding path program 1 times [2024-10-14 04:34:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982628728] [2024-10-14 04:34:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:21,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982628728] [2024-10-14 04:34:21,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982628728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:21,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:21,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224077159] [2024-10-14 04:34:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:21,615 INFO L87 Difference]: Start difference. First operand 5080 states and 8734 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:25,680 INFO L93 Difference]: Finished difference Result 12574 states and 21066 transitions. [2024-10-14 04:34:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:25,719 INFO L225 Difference]: With dead ends: 12574 [2024-10-14 04:34:25,719 INFO L226 Difference]: Without dead ends: 9633 [2024-10-14 04:34:25,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:25,737 INFO L432 NwaCegarLoop]: 4417 mSDtfsCounter, 5445 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:25,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 21775 Invalid, 3671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 04:34:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2024-10-14 04:34:26,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 7692. [2024-10-14 04:34:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7692 states, 7210 states have (on average 1.6828016643550625) internal successors, (12133), 7228 states have internal predecessors, (12133), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-14 04:34:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7692 states to 7692 states and 12954 transitions. [2024-10-14 04:34:26,105 INFO L78 Accepts]: Start accepts. Automaton has 7692 states and 12954 transitions. Word has length 161 [2024-10-14 04:34:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:26,106 INFO L471 AbstractCegarLoop]: Abstraction has 7692 states and 12954 transitions. [2024-10-14 04:34:26,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:26,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7692 states and 12954 transitions. [2024-10-14 04:34:26,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:26,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:26,111 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] [2024-10-14 04:34:26,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:34:26,112 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:26,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash -577233923, now seen corresponding path program 1 times [2024-10-14 04:34:26,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:26,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068332864] [2024-10-14 04:34:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:26,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:26,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:26,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068332864] [2024-10-14 04:34:26,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068332864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:26,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:26,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:26,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334503377] [2024-10-14 04:34:26,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:26,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:26,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:26,371 INFO L87 Difference]: Start difference. First operand 7692 states and 12954 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:30,424 INFO L93 Difference]: Finished difference Result 22060 states and 36616 transitions. [2024-10-14 04:34:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:30,488 INFO L225 Difference]: With dead ends: 22060 [2024-10-14 04:34:30,488 INFO L226 Difference]: Without dead ends: 16507 [2024-10-14 04:34:30,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:30,627 INFO L432 NwaCegarLoop]: 4417 mSDtfsCounter, 5444 mSDsluCounter, 17358 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 21775 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:30,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 21775 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-14 04:34:30,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16507 states. [2024-10-14 04:34:31,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16507 to 12929. [2024-10-14 04:34:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12929 states, 11999 states have (on average 1.6497208100675056) internal successors, (19795), 12033 states have internal predecessors, (19795), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-14 04:34:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12929 states to 12929 states and 21466 transitions. [2024-10-14 04:34:31,341 INFO L78 Accepts]: Start accepts. Automaton has 12929 states and 21466 transitions. Word has length 161 [2024-10-14 04:34:31,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:31,341 INFO L471 AbstractCegarLoop]: Abstraction has 12929 states and 21466 transitions. [2024-10-14 04:34:31,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand 12929 states and 21466 transitions. [2024-10-14 04:34:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:31,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:31,350 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] [2024-10-14 04:34:31,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:34:31,351 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:31,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1122106497, now seen corresponding path program 1 times [2024-10-14 04:34:31,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:31,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883079290] [2024-10-14 04:34:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:31,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:31,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883079290] [2024-10-14 04:34:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883079290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784228206] [2024-10-14 04:34:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:31,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:31,608 INFO L87 Difference]: Start difference. First operand 12929 states and 21466 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:35,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:35,884 INFO L93 Difference]: Finished difference Result 41031 states and 67906 transitions. [2024-10-14 04:34:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:34:35,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:35,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:35,976 INFO L225 Difference]: With dead ends: 41031 [2024-10-14 04:34:35,976 INFO L226 Difference]: Without dead ends: 30241 [2024-10-14 04:34:36,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:34:36,011 INFO L432 NwaCegarLoop]: 4230 mSDtfsCounter, 5541 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5560 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:36,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5560 Valid, 21081 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:34:36,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30241 states. [2024-10-14 04:34:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30241 to 23434. [2024-10-14 04:34:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6274065161051463) internal successors, (35165), 21674 states have internal predecessors, (35165), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:34:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38698 transitions. [2024-10-14 04:34:37,185 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38698 transitions. Word has length 161 [2024-10-14 04:34:37,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:37,185 INFO L471 AbstractCegarLoop]: Abstraction has 23434 states and 38698 transitions. [2024-10-14 04:34:37,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:37,186 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38698 transitions. [2024-10-14 04:34:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:37,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:37,201 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] [2024-10-14 04:34:37,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:34:37,202 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:37,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash -446946371, now seen corresponding path program 1 times [2024-10-14 04:34:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137152839] [2024-10-14 04:34:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137152839] [2024-10-14 04:34:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137152839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:37,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:37,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:37,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937203941] [2024-10-14 04:34:37,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:37,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:37,447 INFO L87 Difference]: Start difference. First operand 23434 states and 38698 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:40,608 INFO L93 Difference]: Finished difference Result 51969 states and 86648 transitions. [2024-10-14 04:34:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:34:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:40,745 INFO L225 Difference]: With dead ends: 51969 [2024-10-14 04:34:40,745 INFO L226 Difference]: Without dead ends: 30674 [2024-10-14 04:34:40,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:34:40,814 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 5194 mSDsluCounter, 12482 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:40,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 16690 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:34:40,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30674 states. [2024-10-14 04:34:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30674 to 23434. [2024-10-14 04:34:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23434 states, 21608 states have (on average 1.6243983709737135) internal successors, (35100), 21674 states have internal predecessors, (35100), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-14 04:34:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23434 states to 23434 states and 38633 transitions. [2024-10-14 04:34:42,234 INFO L78 Accepts]: Start accepts. Automaton has 23434 states and 38633 transitions. Word has length 161 [2024-10-14 04:34:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:34:42,235 INFO L471 AbstractCegarLoop]: Abstraction has 23434 states and 38633 transitions. [2024-10-14 04:34:42,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 23434 states and 38633 transitions. [2024-10-14 04:34:42,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 04:34:42,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:34:42,251 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] [2024-10-14 04:34:42,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:34:42,252 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:34:42,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:34:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1394998337, now seen corresponding path program 1 times [2024-10-14 04:34:42,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:34:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784399461] [2024-10-14 04:34:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:34:42,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:34:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:34:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 04:34:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 04:34:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 04:34:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 04:34:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:34:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:34:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:34:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784399461] [2024-10-14 04:34:42,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784399461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:34:42,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:34:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:34:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366020428] [2024-10-14 04:34:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:34:42,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:34:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:34:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:34:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:34:42,518 INFO L87 Difference]: Start difference. First operand 23434 states and 38633 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 04:34:49,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:34:49,264 INFO L93 Difference]: Finished difference Result 88570 states and 146310 transitions. [2024-10-14 04:34:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:34:49,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-10-14 04:34:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:34:49,522 INFO L225 Difference]: With dead ends: 88570 [2024-10-14 04:34:49,522 INFO L226 Difference]: Without dead ends: 67275 [2024-10-14 04:34:49,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:34:49,762 INFO L432 NwaCegarLoop]: 4415 mSDtfsCounter, 5871 mSDsluCounter, 17353 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5903 SdHoareTripleChecker+Valid, 21768 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:34:49,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5903 Valid, 21768 Invalid, 3581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-14 04:34:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67275 states.