./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.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6376aba20f200d9bf768f64f24c8f171e07f40ce45977e6b5a7728202ee9216f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:23:50,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:23:50,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:23:50,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:23:50,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:23:50,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:23:50,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:23:50,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:23:50,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:23:50,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:23:50,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:23:50,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:23:50,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:23:50,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:23:50,322 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:23:50,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:23:50,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:23:50,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:23:50,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:23:50,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:23:50,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:23:50,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:23:50,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:23:50,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:23:50,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:23:50,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:23:50,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:23:50,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:23:50,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:23:50,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:23:50,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:23:50,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:23:50,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:23:50,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:23:50,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:23:50,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:23:50,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:23:50,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:23:50,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:23:50,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:23:50,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:23:50,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:23:50,347 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6376aba20f200d9bf768f64f24c8f171e07f40ce45977e6b5a7728202ee9216f [2024-10-24 02:23:50,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:23:50,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:23:50,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:23:50,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:23:50,697 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:23:50,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c [2024-10-24 02:23:52,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:23:52,730 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:23:52,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.11.cil-2.c [2024-10-24 02:23:52,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f215a05c/decaf9dda12d4ccd905e83fec1f68061/FLAG60d045c2c [2024-10-24 02:23:53,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f215a05c/decaf9dda12d4ccd905e83fec1f68061 [2024-10-24 02:23:53,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:23:53,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:23:53,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:23:53,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:23:53,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:23:53,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:53" (1/1) ... [2024-10-24 02:23:53,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2dc4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:53, skipping insertion in model container [2024-10-24 02:23:53,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:53" (1/1) ... [2024-10-24 02:23:53,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:23:54,701 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.11.cil-2.c[377612,377625] [2024-10-24 02:23:54,762 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.11.cil-2.c[383339,383352] [2024-10-24 02:23:54,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:23:54,998 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:23:55,575 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.11.cil-2.c[377612,377625] [2024-10-24 02:23:55,583 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.11.cil-2.c[383339,383352] [2024-10-24 02:23:55,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:23:55,657 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:23:55,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55 WrapperNode [2024-10-24 02:23:55,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:23:55,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:23:55,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:23:55,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:23:55,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:55,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,190 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13173 [2024-10-24 02:23:56,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:23:56,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:23:56,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:23:56,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:23:56,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,321 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 02:23:56,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:23:56,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:23:56,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:23:56,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:23:56,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2024-10-24 02:23:56,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:23:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:23:56,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 02:23:56,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 02:23:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:23:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:23:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:23:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:23:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:23:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:23:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:23:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:23:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:23:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:23:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:23:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:23:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:23:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:23:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:23:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:23:56,757 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:23:56,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:24:04,410 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-10-24 02:24:04,410 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:24:04,526 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:24:04,526 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 02:24:04,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:04 BoogieIcfgContainer [2024-10-24 02:24:04,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:24:04,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:24:04,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:24:04,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:24:04,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:23:53" (1/3) ... [2024-10-24 02:24:04,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba68e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:04, skipping insertion in model container [2024-10-24 02:24:04,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (2/3) ... [2024-10-24 02:24:04,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba68e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:04, skipping insertion in model container [2024-10-24 02:24:04,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:04" (3/3) ... [2024-10-24 02:24:04,534 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.11.cil-2.c [2024-10-24 02:24:04,547 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:24:04,547 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:24:04,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:24:04,683 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;@4ffb3c7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:24:04,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:24:04,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 2448 states, 2414 states have (on average 1.876553438276719) internal successors, (4530), 2417 states have internal predecessors, (4530), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 02:24:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:04,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:04,718 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] [2024-10-24 02:24:04,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:04,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1361111705, now seen corresponding path program 1 times [2024-10-24 02:24:04,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:04,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715461720] [2024-10-24 02:24:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:04,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715461720] [2024-10-24 02:24:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715461720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:05,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:05,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:24:05,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591575613] [2024-10-24 02:24:05,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:05,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:24:05,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:05,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:24:05,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:24:05,382 INFO L87 Difference]: Start difference. First operand has 2448 states, 2414 states have (on average 1.876553438276719) internal successors, (4530), 2417 states have internal predecessors, (4530), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:07,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:07,232 INFO L93 Difference]: Finished difference Result 5006 states and 9354 transitions. [2024-10-24 02:24:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:24:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:07,259 INFO L225 Difference]: With dead ends: 5006 [2024-10-24 02:24:07,259 INFO L226 Difference]: Without dead ends: 2564 [2024-10-24 02:24:07,268 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 [2024-10-24 02:24:07,271 INFO L432 NwaCegarLoop]: 4238 mSDtfsCounter, 902 mSDsluCounter, 12182 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 16420 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:07,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 16420 Invalid, 1046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:24:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-10-24 02:24:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2444. [2024-10-24 02:24:07,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2411 states have (on average 1.838241393612609) internal successors, (4432), 2413 states have internal predecessors, (4432), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-24 02:24:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 4482 transitions. [2024-10-24 02:24:07,393 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 4482 transitions. Word has length 151 [2024-10-24 02:24:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:07,394 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 4482 transitions. [2024-10-24 02:24:07,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:07,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 4482 transitions. [2024-10-24 02:24:07,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:07,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:07,397 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] [2024-10-24 02:24:07,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:24:07,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:07,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:07,398 INFO L85 PathProgramCache]: Analyzing trace with hash 774771497, now seen corresponding path program 1 times [2024-10-24 02:24:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167575629] [2024-10-24 02:24:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:07,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:07,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:07,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167575629] [2024-10-24 02:24:07,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167575629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:07,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:07,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:24:07,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503132209] [2024-10-24 02:24:07,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:07,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:24:07,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:24:07,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:24:07,719 INFO L87 Difference]: Start difference. First operand 2444 states and 4482 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:10,450 INFO L93 Difference]: Finished difference Result 3313 states and 5934 transitions. [2024-10-24 02:24:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:24:10,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:10,467 INFO L225 Difference]: With dead ends: 3313 [2024-10-24 02:24:10,467 INFO L226 Difference]: Without dead ends: 3007 [2024-10-24 02:24:10,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:24:10,470 INFO L432 NwaCegarLoop]: 4252 mSDtfsCounter, 5325 mSDsluCounter, 12699 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5343 SdHoareTripleChecker+Valid, 16951 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:10,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5343 Valid, 16951 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 02:24:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2024-10-24 02:24:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2768. [2024-10-24 02:24:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2708 states have (on average 1.8172082717872968) internal successors, (4921), 2711 states have internal predecessors, (4921), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-10-24 02:24:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 5014 transitions. [2024-10-24 02:24:10,604 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 5014 transitions. Word has length 151 [2024-10-24 02:24:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:10,605 INFO L471 AbstractCegarLoop]: Abstraction has 2768 states and 5014 transitions. [2024-10-24 02:24:10,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 5014 transitions. [2024-10-24 02:24:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:10,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:10,611 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] [2024-10-24 02:24:10,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:24:10,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:10,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 653545645, now seen corresponding path program 1 times [2024-10-24 02:24:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:10,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877824008] [2024-10-24 02:24:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:10,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:10,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:10,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877824008] [2024-10-24 02:24:10,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877824008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:10,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:10,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:10,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711848173] [2024-10-24 02:24:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:10,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:10,963 INFO L87 Difference]: Start difference. First operand 2768 states and 5014 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:14,581 INFO L93 Difference]: Finished difference Result 4098 states and 7236 transitions. [2024-10-24 02:24:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:24:14,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:14,596 INFO L225 Difference]: With dead ends: 4098 [2024-10-24 02:24:14,600 INFO L226 Difference]: Without dead ends: 3468 [2024-10-24 02:24:14,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:24:14,607 INFO L432 NwaCegarLoop]: 4390 mSDtfsCounter, 5356 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5374 SdHoareTripleChecker+Valid, 21646 SdHoareTripleChecker+Invalid, 3520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:14,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5374 Valid, 21646 Invalid, 3520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 3461 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 02:24:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2024-10-24 02:24:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3067. [2024-10-24 02:24:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2980 states have (on average 1.7986577181208054) internal successors, (5360), 2984 states have internal predecessors, (5360), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-10-24 02:24:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 5495 transitions. [2024-10-24 02:24:14,919 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 5495 transitions. Word has length 151 [2024-10-24 02:24:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:14,919 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 5495 transitions. [2024-10-24 02:24:14,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 5495 transitions. [2024-10-24 02:24:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:14,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:14,925 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] [2024-10-24 02:24:14,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:24:14,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:14,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:14,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1328705771, now seen corresponding path program 1 times [2024-10-24 02:24:14,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:14,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563107541] [2024-10-24 02:24:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:14,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:15,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:15,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563107541] [2024-10-24 02:24:15,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563107541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:15,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:15,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:15,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108951120] [2024-10-24 02:24:15,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:15,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:15,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:15,352 INFO L87 Difference]: Start difference. First operand 3067 states and 5495 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:19,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:19,211 INFO L93 Difference]: Finished difference Result 5248 states and 9131 transitions. [2024-10-24 02:24:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:24:19,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:19,229 INFO L225 Difference]: With dead ends: 5248 [2024-10-24 02:24:19,229 INFO L226 Difference]: Without dead ends: 4319 [2024-10-24 02:24:19,235 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 [2024-10-24 02:24:19,236 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5354 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3457 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:19,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5372 Valid, 21644 Invalid, 3518 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3457 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 02:24:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2024-10-24 02:24:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 3666. [2024-10-24 02:24:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7699290780141843) internal successors, (6239), 3531 states have internal predecessors, (6239), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:24:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6462 transitions. [2024-10-24 02:24:19,382 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6462 transitions. Word has length 151 [2024-10-24 02:24:19,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:19,382 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6462 transitions. [2024-10-24 02:24:19,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:19,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6462 transitions. [2024-10-24 02:24:19,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:19,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:19,385 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] [2024-10-24 02:24:19,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:24:19,385 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:19,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 380653805, now seen corresponding path program 1 times [2024-10-24 02:24:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699000401] [2024-10-24 02:24:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699000401] [2024-10-24 02:24:19,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699000401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:19,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:19,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843497453] [2024-10-24 02:24:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:19,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:19,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:19,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:19,834 INFO L87 Difference]: Start difference. First operand 3666 states and 6462 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:21,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:21,744 INFO L93 Difference]: Finished difference Result 5837 states and 10091 transitions. [2024-10-24 02:24:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:24:21,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:21,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:21,758 INFO L225 Difference]: With dead ends: 5837 [2024-10-24 02:24:21,758 INFO L226 Difference]: Without dead ends: 4309 [2024-10-24 02:24:21,762 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 [2024-10-24 02:24:21,762 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4957 mSDsluCounter, 16550 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 20742 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:21,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 20742 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 02:24:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2024-10-24 02:24:21,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 3666. [2024-10-24 02:24:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7685106382978724) internal successors, (6234), 3531 states have internal predecessors, (6234), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:24:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6457 transitions. [2024-10-24 02:24:21,884 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6457 transitions. Word has length 151 [2024-10-24 02:24:21,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:21,884 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6457 transitions. [2024-10-24 02:24:21,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6457 transitions. [2024-10-24 02:24:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:21,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:21,887 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] [2024-10-24 02:24:21,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:24:21,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:21,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash -204117845, now seen corresponding path program 1 times [2024-10-24 02:24:21,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:21,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832320139] [2024-10-24 02:24:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:21,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:22,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:22,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:22,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:22,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832320139] [2024-10-24 02:24:22,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832320139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:22,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:22,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173363702] [2024-10-24 02:24:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:22,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:22,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:22,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:22,150 INFO L87 Difference]: Start difference. First operand 3666 states and 6457 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:23,613 INFO L93 Difference]: Finished difference Result 5831 states and 10065 transitions. [2024-10-24 02:24:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:24:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:23,630 INFO L225 Difference]: With dead ends: 5831 [2024-10-24 02:24:23,630 INFO L226 Difference]: Without dead ends: 4303 [2024-10-24 02:24:23,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:24:23,640 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5096 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:23,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 16633 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:24:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2024-10-24 02:24:23,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 3666. [2024-10-24 02:24:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7670921985815602) internal successors, (6229), 3531 states have internal predecessors, (6229), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:24:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6452 transitions. [2024-10-24 02:24:23,773 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6452 transitions. Word has length 151 [2024-10-24 02:24:23,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:23,774 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6452 transitions. [2024-10-24 02:24:23,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6452 transitions. [2024-10-24 02:24:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:23,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:23,777 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] [2024-10-24 02:24:23,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:24:23,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:23,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash -638623443, now seen corresponding path program 1 times [2024-10-24 02:24:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:23,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794615159] [2024-10-24 02:24:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:23,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:23,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:24,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:24,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:24,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:24,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:24,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794615159] [2024-10-24 02:24:24,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794615159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:24,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:24,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:24,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215239726] [2024-10-24 02:24:24,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:24,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:24,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:24,136 INFO L87 Difference]: Start difference. First operand 3666 states and 6452 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:25,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:25,817 INFO L93 Difference]: Finished difference Result 5824 states and 10037 transitions. [2024-10-24 02:24:25,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:24:25,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:25,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:25,841 INFO L225 Difference]: With dead ends: 5824 [2024-10-24 02:24:25,841 INFO L226 Difference]: Without dead ends: 4296 [2024-10-24 02:24:25,848 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 [2024-10-24 02:24:25,849 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5100 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:25,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 16633 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:24:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2024-10-24 02:24:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 3666. [2024-10-24 02:24:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.7656737588652482) internal successors, (6224), 3531 states have internal predecessors, (6224), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:24:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6447 transitions. [2024-10-24 02:24:26,010 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6447 transitions. Word has length 151 [2024-10-24 02:24:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:26,010 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6447 transitions. [2024-10-24 02:24:26,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:26,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6447 transitions. [2024-10-24 02:24:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:26,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:26,013 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] [2024-10-24 02:24:26,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:24:26,014 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:26,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1068281749, now seen corresponding path program 1 times [2024-10-24 02:24:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942259812] [2024-10-24 02:24:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:26,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:26,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:26,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942259812] [2024-10-24 02:24:26,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942259812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:26,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:26,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967967614] [2024-10-24 02:24:26,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:26,245 INFO L87 Difference]: Start difference. First operand 3666 states and 6447 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:27,701 INFO L93 Difference]: Finished difference Result 5812 states and 9999 transitions. [2024-10-24 02:24:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:24:27,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:27,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:27,713 INFO L225 Difference]: With dead ends: 5812 [2024-10-24 02:24:27,713 INFO L226 Difference]: Without dead ends: 4284 [2024-10-24 02:24:27,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:24:27,719 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 5096 mSDsluCounter, 12441 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 16633 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:27,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 16633 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:24:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2024-10-24 02:24:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 3666. [2024-10-24 02:24:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3525 states have (on average 1.764255319148936) internal successors, (6219), 3531 states have internal predecessors, (6219), 105 states have call successors, (105), 30 states have call predecessors, (105), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-24 02:24:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 6442 transitions. [2024-10-24 02:24:27,887 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 6442 transitions. Word has length 151 [2024-10-24 02:24:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:27,887 INFO L471 AbstractCegarLoop]: Abstraction has 3666 states and 6442 transitions. [2024-10-24 02:24:27,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 6442 transitions. [2024-10-24 02:24:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:27,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:27,891 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] [2024-10-24 02:24:27,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:24:27,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:27,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash -121243863, now seen corresponding path program 1 times [2024-10-24 02:24:27,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:27,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654302598] [2024-10-24 02:24:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:27,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:28,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:28,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654302598] [2024-10-24 02:24:28,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654302598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:28,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:28,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563300287] [2024-10-24 02:24:28,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:28,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:28,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:28,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:28,226 INFO L87 Difference]: Start difference. First operand 3666 states and 6442 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:31,610 INFO L93 Difference]: Finished difference Result 7418 states and 12588 transitions. [2024-10-24 02:24:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:24:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:31,630 INFO L225 Difference]: With dead ends: 7418 [2024-10-24 02:24:31,631 INFO L226 Difference]: Without dead ends: 5890 [2024-10-24 02:24:31,636 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 [2024-10-24 02:24:31,637 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5325 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5343 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:31,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5343 Valid, 21644 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 02:24:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5890 states. [2024-10-24 02:24:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5890 to 4887. [2024-10-24 02:24:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4887 states, 4638 states have (on average 1.7231565329883571) internal successors, (7992), 4648 states have internal predecessors, (7992), 185 states have call successors, (185), 54 states have call predecessors, (185), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-10-24 02:24:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 8397 transitions. [2024-10-24 02:24:31,827 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 8397 transitions. Word has length 151 [2024-10-24 02:24:31,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:31,827 INFO L471 AbstractCegarLoop]: Abstraction has 4887 states and 8397 transitions. [2024-10-24 02:24:31,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 8397 transitions. [2024-10-24 02:24:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:31,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:31,832 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] [2024-10-24 02:24:31,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:24:31,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:31,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash 740589739, now seen corresponding path program 1 times [2024-10-24 02:24:31,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:31,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980691742] [2024-10-24 02:24:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:31,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:31,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:32,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:32,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:32,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:32,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980691742] [2024-10-24 02:24:32,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980691742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:32,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:32,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258716444] [2024-10-24 02:24:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:32,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:32,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:32,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:32,072 INFO L87 Difference]: Start difference. First operand 4887 states and 8397 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:35,512 INFO L93 Difference]: Finished difference Result 11823 states and 19739 transitions. [2024-10-24 02:24:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:24:35,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:35,537 INFO L225 Difference]: With dead ends: 11823 [2024-10-24 02:24:35,537 INFO L226 Difference]: Without dead ends: 9074 [2024-10-24 02:24:35,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:24:35,550 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5324 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:35,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 21644 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3314 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:24:35,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9074 states. [2024-10-24 02:24:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9074 to 7326. [2024-10-24 02:24:35,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7326 states, 6861 states have (on average 1.6802215420492639) internal successors, (11528), 6879 states have internal predecessors, (11528), 345 states have call successors, (345), 102 states have call predecessors, (345), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-10-24 02:24:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7326 states to 7326 states and 12315 transitions. [2024-10-24 02:24:35,830 INFO L78 Accepts]: Start accepts. Automaton has 7326 states and 12315 transitions. Word has length 151 [2024-10-24 02:24:35,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:35,831 INFO L471 AbstractCegarLoop]: Abstraction has 7326 states and 12315 transitions. [2024-10-24 02:24:35,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7326 states and 12315 transitions. [2024-10-24 02:24:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:35,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:35,834 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] [2024-10-24 02:24:35,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:24:35,834 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:35,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1309819159, now seen corresponding path program 1 times [2024-10-24 02:24:35,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:35,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387599238] [2024-10-24 02:24:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:35,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:35,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:35,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:36,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:36,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:36,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:36,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387599238] [2024-10-24 02:24:36,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387599238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:36,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:36,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734068889] [2024-10-24 02:24:36,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:36,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:36,047 INFO L87 Difference]: Start difference. First operand 7326 states and 12315 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:39,454 INFO L93 Difference]: Finished difference Result 20624 states and 34083 transitions. [2024-10-24 02:24:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:24:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:39,497 INFO L225 Difference]: With dead ends: 20624 [2024-10-24 02:24:39,497 INFO L226 Difference]: Without dead ends: 15436 [2024-10-24 02:24:39,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:24:39,517 INFO L432 NwaCegarLoop]: 4388 mSDtfsCounter, 5323 mSDsluCounter, 17256 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5341 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:39,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5341 Valid, 21644 Invalid, 3362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 02:24:39,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15436 states. [2024-10-24 02:24:40,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15436 to 12219. [2024-10-24 02:24:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12219 states, 11322 states have (on average 1.6447624094682918) internal successors, (18622), 11356 states have internal predecessors, (18622), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-24 02:24:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 20227 transitions. [2024-10-24 02:24:40,307 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 20227 transitions. Word has length 151 [2024-10-24 02:24:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:40,307 INFO L471 AbstractCegarLoop]: Abstraction has 12219 states and 20227 transitions. [2024-10-24 02:24:40,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 20227 transitions. [2024-10-24 02:24:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:40,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:40,317 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] [2024-10-24 02:24:40,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:24:40,317 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:40,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:40,318 INFO L85 PathProgramCache]: Analyzing trace with hash -821772053, now seen corresponding path program 1 times [2024-10-24 02:24:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:40,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729319260] [2024-10-24 02:24:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:40,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:40,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729319260] [2024-10-24 02:24:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729319260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:40,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:40,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246252323] [2024-10-24 02:24:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:40,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:40,553 INFO L87 Difference]: Start difference. First operand 12219 states and 20227 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:42,876 INFO L93 Difference]: Finished difference Result 25682 states and 42532 transitions. [2024-10-24 02:24:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:24:42,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:42,919 INFO L225 Difference]: With dead ends: 25682 [2024-10-24 02:24:42,919 INFO L226 Difference]: Without dead ends: 15601 [2024-10-24 02:24:42,949 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 [2024-10-24 02:24:42,949 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 4956 mSDsluCounter, 16550 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 20742 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:42,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4975 Valid, 20742 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:24:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15601 states. [2024-10-24 02:24:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15601 to 12219. [2024-10-24 02:24:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12219 states, 11322 states have (on average 1.641847730083024) internal successors, (18589), 11356 states have internal predecessors, (18589), 665 states have call successors, (665), 198 states have call predecessors, (665), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-24 02:24:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 20194 transitions. [2024-10-24 02:24:43,694 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 20194 transitions. Word has length 151 [2024-10-24 02:24:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:43,695 INFO L471 AbstractCegarLoop]: Abstraction has 12219 states and 20194 transitions. [2024-10-24 02:24:43,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:43,695 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 20194 transitions. [2024-10-24 02:24:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:43,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:43,701 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] [2024-10-24 02:24:43,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:24:43,701 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:43,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1914407255, now seen corresponding path program 1 times [2024-10-24 02:24:43,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:43,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905328491] [2024-10-24 02:24:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:43,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:43,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:43,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905328491] [2024-10-24 02:24:43,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905328491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:43,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:43,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:43,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230016966] [2024-10-24 02:24:43,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:43,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:43,972 INFO L87 Difference]: Start difference. First operand 12219 states and 20194 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:49,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:49,314 INFO L93 Difference]: Finished difference Result 42673 states and 69999 transitions. [2024-10-24 02:24:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:24:49,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:49,386 INFO L225 Difference]: With dead ends: 42673 [2024-10-24 02:24:49,387 INFO L226 Difference]: Without dead ends: 32592 [2024-10-24 02:24:49,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:24:49,410 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 5714 mSDsluCounter, 17251 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 21637 SdHoareTripleChecker+Invalid, 3317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:49,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5744 Valid, 21637 Invalid, 3317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:24:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32592 states. [2024-10-24 02:24:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32592 to 22005. [2024-10-24 02:24:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22005 states, 20276 states have (on average 1.617330834484119) internal successors, (32793), 20342 states have internal predecessors, (32793), 1273 states have call successors, (1273), 390 states have call predecessors, (1273), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-10-24 02:24:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22005 states to 22005 states and 36132 transitions. [2024-10-24 02:24:50,846 INFO L78 Accepts]: Start accepts. Automaton has 22005 states and 36132 transitions. Word has length 151 [2024-10-24 02:24:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:24:50,847 INFO L471 AbstractCegarLoop]: Abstraction has 22005 states and 36132 transitions. [2024-10-24 02:24:50,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 22005 states and 36132 transitions. [2024-10-24 02:24:50,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:24:50,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:24:50,857 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] [2024-10-24 02:24:50,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:24:50,858 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:24:50,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:24:50,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1098387755, now seen corresponding path program 1 times [2024-10-24 02:24:50,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:24:50,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968319702] [2024-10-24 02:24:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:24:50,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:24:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:50,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:24:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:50,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:24:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:51,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:24:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:51,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:24:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:51,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:24:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:24:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:24:51,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:24:51,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968319702] [2024-10-24 02:24:51,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968319702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:24:51,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:24:51,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:24:51,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610135230] [2024-10-24 02:24:51,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:24:51,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:24:51,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:24:51,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:24:51,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:24:51,038 INFO L87 Difference]: Start difference. First operand 22005 states and 36132 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:24:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:24:57,357 INFO L93 Difference]: Finished difference Result 81465 states and 133999 transitions. [2024-10-24 02:24:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:24:57,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:24:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:24:57,517 INFO L225 Difference]: With dead ends: 81465 [2024-10-24 02:24:57,517 INFO L226 Difference]: Without dead ends: 61598 [2024-10-24 02:24:57,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:24:57,571 INFO L432 NwaCegarLoop]: 4385 mSDtfsCounter, 5411 mSDsluCounter, 17248 mSDsCounter, 0 mSdLazyCounter, 3855 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5428 SdHoareTripleChecker+Valid, 21633 SdHoareTripleChecker+Invalid, 3918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:24:57,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5428 Valid, 21633 Invalid, 3918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3855 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:24:57,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61598 states. [2024-10-24 02:24:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61598 to 41254. [2024-10-24 02:25:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41254 states, 37893 states have (on average 1.603119309635025) internal successors, (60747), 38023 states have internal predecessors, (60747), 2457 states have call successors, (2457), 774 states have call predecessors, (2457), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-10-24 02:25:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41254 states to 41254 states and 67976 transitions. [2024-10-24 02:25:00,130 INFO L78 Accepts]: Start accepts. Automaton has 41254 states and 67976 transitions. Word has length 151 [2024-10-24 02:25:00,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:25:00,130 INFO L471 AbstractCegarLoop]: Abstraction has 41254 states and 67976 transitions. [2024-10-24 02:25:00,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:25:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 41254 states and 67976 transitions. [2024-10-24 02:25:00,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 02:25:00,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:25:00,155 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] [2024-10-24 02:25:00,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:25:00,156 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:25:00,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:25:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash -744087959, now seen corresponding path program 1 times [2024-10-24 02:25:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:25:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981572099] [2024-10-24 02:25:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:25:00,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:25:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:25:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:25:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 02:25:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 02:25:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 02:25:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:25:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:25:00,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:25:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981572099] [2024-10-24 02:25:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981572099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:25:00,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:25:00,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:25:00,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447729416] [2024-10-24 02:25:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:25:00,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:25:00,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:25:00,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:25:00,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:25:00,421 INFO L87 Difference]: Start difference. First operand 41254 states and 67976 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:25:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:25:10,017 INFO L93 Difference]: Finished difference Result 155526 states and 258177 transitions. [2024-10-24 02:25:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:25:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 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 151 [2024-10-24 02:25:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:25:10,437 INFO L225 Difference]: With dead ends: 155526 [2024-10-24 02:25:10,437 INFO L226 Difference]: Without dead ends: 116410 [2024-10-24 02:25:10,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:25:10,547 INFO L432 NwaCegarLoop]: 4386 mSDtfsCounter, 5609 mSDsluCounter, 17251 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5639 SdHoareTripleChecker+Valid, 21637 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:25:10,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5639 Valid, 21637 Invalid, 3272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 02:25:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116410 states.