./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+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 59889c869f0503702a707a8a5c510d219998ebb909bdbb124a0f8dd8888d2da1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:14:14,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:14:14,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:14:14,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:14:14,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:14:14,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:14:14,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:14:14,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:14:14,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:14:14,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:14:14,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:14:14,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:14:14,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:14:14,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:14:14,479 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:14:14,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:14:14,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:14:14,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:14:14,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:14:14,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:14:14,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:14:14,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:14:14,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:14:14,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:14:14,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:14:14,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:14:14,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:14:14,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:14:14,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:14:14,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:14:14,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:14:14,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:14:14,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:14:14,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:14:14,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:14:14,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:14:14,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:14:14,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:14:14,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:14:14,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:14:14,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:14:14,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:14:14,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59889c869f0503702a707a8a5c510d219998ebb909bdbb124a0f8dd8888d2da1 [2024-11-11 22:14:14,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:14:14,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:14:14,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:14:14,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:14:14,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:14:14,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c [2024-11-11 22:14:15,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:14:16,314 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:14:16,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c [2024-11-11 22:14:16,356 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0a27eeb/b1dede8b5d764a29a8441691347e6133/FLAG5ac036f56 [2024-11-11 22:14:16,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0a27eeb/b1dede8b5d764a29a8441691347e6133 [2024-11-11 22:14:16,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:14:16,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:14:16,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:14:16,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:14:16,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:14:16,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:14:16" (1/1) ... [2024-11-11 22:14:16,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796a465a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:16, skipping insertion in model container [2024-11-11 22:14:16,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:14:16" (1/1) ... [2024-11-11 22:14:16,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:14:17,830 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c[380323,380336] [2024-11-11 22:14:17,851 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c[383339,383352] [2024-11-11 22:14:18,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:14:18,049 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:14:18,640 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c[380323,380336] [2024-11-11 22:14:18,644 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-2.c[383339,383352] [2024-11-11 22:14:18,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:14:18,709 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:14:18,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18 WrapperNode [2024-11-11 22:14:18,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:14:18,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:14:18,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:14:18,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:14:18,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:18,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,056 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13173 [2024-11-11 22:14:19,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:14:19,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:14:19,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:14:19,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:14:19,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,166 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,242 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:14:19,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:14:19,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:14:19,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:14:19,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:14:19,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (1/1) ... [2024-11-11 22:14:19,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:14:19,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:14:19,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:14:19,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:14:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:14:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:14:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:14:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:14:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:14:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:14:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:14:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:14:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:14:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:14:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:14:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:14:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:14:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:14:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:14:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:14:19,652 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:14:19,654 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:14:25,453 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-11 22:14:25,453 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:14:25,498 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:14:25,498 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-11 22:14:25,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:14:25 BoogieIcfgContainer [2024-11-11 22:14:25,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:14:25,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:14:25,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:14:25,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:14:25,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:14:16" (1/3) ... [2024-11-11 22:14:25,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536f3886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:14:25, skipping insertion in model container [2024-11-11 22:14:25,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:14:18" (2/3) ... [2024-11-11 22:14:25,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536f3886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:14:25, skipping insertion in model container [2024-11-11 22:14:25,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:14:25" (3/3) ... [2024-11-11 22:14:25,507 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.11.cil-2.c [2024-11-11 22:14:25,519 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:14:25,519 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:14:25,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:14:25,599 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;@7ac805ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:14:25,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:14:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-11 22:14:25,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:25,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:25,629 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:25,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:25,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1612781040, now seen corresponding path program 1 times [2024-11-11 22:14:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:25,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203913457] [2024-11-11 22:14:25,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:26,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203913457] [2024-11-11 22:14:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203913457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:26,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:26,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:14:26,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349056863] [2024-11-11 22:14:26,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:26,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:14:26,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:26,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:14:26,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:14:26,529 INFO L87 Difference]: Start difference. First operand has 2552 states, 2518 states have (on average 1.8403494837172358) internal successors, (4634), 2521 states have internal predecessors, (4634), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-11 22:14:28,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:28,296 INFO L93 Difference]: Finished difference Result 5223 states and 9571 transitions. [2024-11-11 22:14:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:14:28,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:28,323 INFO L225 Difference]: With dead ends: 5223 [2024-11-11 22:14:28,323 INFO L226 Difference]: Without dead ends: 2616 [2024-11-11 22:14:28,330 INFO L434 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 [2024-11-11 22:14:28,333 INFO L435 NwaCegarLoop]: 4360 mSDtfsCounter, 969 mSDsluCounter, 12463 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 16823 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:28,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 16823 Invalid, 1013 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:14:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2024-11-11 22:14:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2485. [2024-11-11 22:14:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2454 states have internal predecessors, (4473), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-11 22:14:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 4523 transitions. [2024-11-11 22:14:28,463 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 4523 transitions. Word has length 167 [2024-11-11 22:14:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:28,464 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 4523 transitions. [2024-11-11 22:14:28,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-11 22:14:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 4523 transitions. [2024-11-11 22:14:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:28,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:28,468 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:28,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:14:28,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:28,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash 787852370, now seen corresponding path program 1 times [2024-11-11 22:14:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:28,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966492649] [2024-11-11 22:14:28,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:28,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966492649] [2024-11-11 22:14:28,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966492649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:28,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:28,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:14:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469900329] [2024-11-11 22:14:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:28,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:14:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:14:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:14:28,796 INFO L87 Difference]: Start difference. First operand 2485 states and 4523 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-11-11 22:14:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:31,393 INFO L93 Difference]: Finished difference Result 3453 states and 6074 transitions. [2024-11-11 22:14:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:14:31,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:31,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:31,407 INFO L225 Difference]: With dead ends: 3453 [2024-11-11 22:14:31,407 INFO L226 Difference]: Without dead ends: 3108 [2024-11-11 22:14:31,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:14:31,409 INFO L435 NwaCegarLoop]: 4310 mSDtfsCounter, 5415 mSDsluCounter, 12898 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5433 SdHoareTripleChecker+Valid, 17208 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:31,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5433 Valid, 17208 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:14:31,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2024-11-11 22:14:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2847. [2024-11-11 22:14:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2787 states have (on average 1.794043774668102) internal successors, (5000), 2790 states have internal predecessors, (5000), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-11 22:14:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 5093 transitions. [2024-11-11 22:14:31,481 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 5093 transitions. Word has length 167 [2024-11-11 22:14:31,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:31,481 INFO L471 AbstractCegarLoop]: Abstraction has 2847 states and 5093 transitions. [2024-11-11 22:14:31,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-11-11 22:14:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 5093 transitions. [2024-11-11 22:14:31,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:31,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:31,487 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:31,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:14:31,487 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:31,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1787438550, now seen corresponding path program 1 times [2024-11-11 22:14:31,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:31,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464756443] [2024-11-11 22:14:31,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:31,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:31,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464756443] [2024-11-11 22:14:31,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464756443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:31,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:31,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:31,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572818563] [2024-11-11 22:14:31,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:31,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:31,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:31,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:31,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:31,723 INFO L87 Difference]: Start difference. First operand 2847 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:34,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:34,606 INFO L93 Difference]: Finished difference Result 4325 states and 7463 transitions. [2024-11-11 22:14:34,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:34,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:34,618 INFO L225 Difference]: With dead ends: 4325 [2024-11-11 22:14:34,618 INFO L226 Difference]: Without dead ends: 3618 [2024-11-11 22:14:34,620 INFO L434 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 [2024-11-11 22:14:34,621 INFO L435 NwaCegarLoop]: 4497 mSDtfsCounter, 5444 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5462 SdHoareTripleChecker+Valid, 22181 SdHoareTripleChecker+Invalid, 3386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:34,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5462 Valid, 22181 Invalid, 3386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:14:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2024-11-11 22:14:34,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3184. [2024-11-11 22:14:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3097 states have (on average 1.7684856312560542) internal successors, (5477), 3101 states have internal predecessors, (5477), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-11 22:14:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 5612 transitions. [2024-11-11 22:14:34,694 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 5612 transitions. Word has length 167 [2024-11-11 22:14:34,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:34,695 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 5612 transitions. [2024-11-11 22:14:34,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 5612 transitions. [2024-11-11 22:14:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:34,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:34,697 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:34,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:14:34,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:34,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2125726100, now seen corresponding path program 1 times [2024-11-11 22:14:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:34,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112150923] [2024-11-11 22:14:34,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:34,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112150923] [2024-11-11 22:14:34,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112150923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:34,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:34,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:34,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18706182] [2024-11-11 22:14:34,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:34,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:34,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:34,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:34,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:34,975 INFO L87 Difference]: Start difference. First operand 3184 states and 5612 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:37,720 INFO L93 Difference]: Finished difference Result 5611 states and 9494 transitions. [2024-11-11 22:14:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:37,736 INFO L225 Difference]: With dead ends: 5611 [2024-11-11 22:14:37,737 INFO L226 Difference]: Without dead ends: 4567 [2024-11-11 22:14:37,742 INFO L434 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 [2024-11-11 22:14:37,743 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5442 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5460 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:37,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5460 Valid, 22179 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 22:14:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2024-11-11 22:14:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 3859. [2024-11-11 22:14:37,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3718 states have (on average 1.7299623453469608) internal successors, (6432), 3724 states have internal predecessors, (6432), 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) [2024-11-11 22:14:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 6655 transitions. [2024-11-11 22:14:37,853 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 6655 transitions. Word has length 167 [2024-11-11 22:14:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:37,854 INFO L471 AbstractCegarLoop]: Abstraction has 3859 states and 6655 transitions. [2024-11-11 22:14:37,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 6655 transitions. [2024-11-11 22:14:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:37,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:37,856 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:37,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:14:37,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:37,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1742686698, now seen corresponding path program 1 times [2024-11-11 22:14:37,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:37,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915226205] [2024-11-11 22:14:37,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:37,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:37,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:38,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:38,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:38,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:38,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:38,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915226205] [2024-11-11 22:14:38,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915226205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:38,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:38,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932275456] [2024-11-11 22:14:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:38,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:38,103 INFO L87 Difference]: Start difference. First operand 3859 states and 6655 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:40,889 INFO L93 Difference]: Finished difference Result 8086 states and 13377 transitions. [2024-11-11 22:14:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:40,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:40,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:40,911 INFO L225 Difference]: With dead ends: 8086 [2024-11-11 22:14:40,911 INFO L226 Difference]: Without dead ends: 6367 [2024-11-11 22:14:40,917 INFO L434 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 [2024-11-11 22:14:40,918 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5438 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5456 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:40,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5456 Valid, 22179 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3314 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:14:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6367 states. [2024-11-11 22:14:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6367 to 5210. [2024-11-11 22:14:41,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5210 states, 4961 states have (on average 1.681515823422697) internal successors, (8342), 4971 states have internal predecessors, (8342), 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) [2024-11-11 22:14:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 8747 transitions. [2024-11-11 22:14:41,167 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 8747 transitions. Word has length 167 [2024-11-11 22:14:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:41,168 INFO L471 AbstractCegarLoop]: Abstraction has 5210 states and 8747 transitions. [2024-11-11 22:14:41,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 8747 transitions. [2024-11-11 22:14:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:41,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:41,171 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:41,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:14:41,172 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:41,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2011851092, now seen corresponding path program 1 times [2024-11-11 22:14:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:41,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812003110] [2024-11-11 22:14:41,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:41,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:41,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:41,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812003110] [2024-11-11 22:14:41,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812003110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:41,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:41,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:41,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462574044] [2024-11-11 22:14:41,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:41,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:41,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:41,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:41,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:41,423 INFO L87 Difference]: Start difference. First operand 5210 states and 8747 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:44,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:44,859 INFO L93 Difference]: Finished difference Result 13035 states and 21159 transitions. [2024-11-11 22:14:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:44,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:44,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:44,890 INFO L225 Difference]: With dead ends: 13035 [2024-11-11 22:14:44,891 INFO L226 Difference]: Without dead ends: 9965 [2024-11-11 22:14:44,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:14:44,900 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5434 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5452 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:44,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5452 Valid, 22179 Invalid, 3366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 22:14:44,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2024-11-11 22:14:45,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 7917. [2024-11-11 22:14:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 7452 states have (on average 1.6328502415458936) internal successors, (12168), 7470 states have internal predecessors, (12168), 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) [2024-11-11 22:14:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 12955 transitions. [2024-11-11 22:14:45,177 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 12955 transitions. Word has length 167 [2024-11-11 22:14:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:45,178 INFO L471 AbstractCegarLoop]: Abstraction has 7917 states and 12955 transitions. [2024-11-11 22:14:45,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 12955 transitions. [2024-11-11 22:14:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:45,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:45,183 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:45,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:14:45,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:45,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:45,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1855870550, now seen corresponding path program 1 times [2024-11-11 22:14:45,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:45,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721529433] [2024-11-11 22:14:45,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:45,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:45,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721529433] [2024-11-11 22:14:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721529433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:45,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:45,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066077030] [2024-11-11 22:14:45,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:45,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:45,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:45,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:45,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:45,402 INFO L87 Difference]: Start difference. First operand 7917 states and 12955 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:48,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:48,274 INFO L93 Difference]: Finished difference Result 22932 states and 36781 transitions. [2024-11-11 22:14:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:48,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:48,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:48,354 INFO L225 Difference]: With dead ends: 22932 [2024-11-11 22:14:48,355 INFO L226 Difference]: Without dead ends: 17155 [2024-11-11 22:14:48,376 INFO L434 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 [2024-11-11 22:14:48,379 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5436 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5454 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:48,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5454 Valid, 22179 Invalid, 3352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 22:14:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17155 states. [2024-11-11 22:14:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17155 to 13344. [2024-11-11 22:14:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13344 states, 12447 states have (on average 1.593797702257572) internal successors, (19838), 12481 states have internal predecessors, (19838), 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) [2024-11-11 22:14:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13344 states to 13344 states and 21443 transitions. [2024-11-11 22:14:48,959 INFO L78 Accepts]: Start accepts. Automaton has 13344 states and 21443 transitions. Word has length 167 [2024-11-11 22:14:48,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:48,960 INFO L471 AbstractCegarLoop]: Abstraction has 13344 states and 21443 transitions. [2024-11-11 22:14:48,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand 13344 states and 21443 transitions. [2024-11-11 22:14:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:48,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:48,966 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:14:48,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:48,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2028486380, now seen corresponding path program 1 times [2024-11-11 22:14:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:48,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805422223] [2024-11-11 22:14:48,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:49,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:49,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805422223] [2024-11-11 22:14:49,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805422223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:49,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:49,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:49,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943635171] [2024-11-11 22:14:49,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:49,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:49,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:49,156 INFO L87 Difference]: Start difference. First operand 13344 states and 21443 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:50,876 INFO L93 Difference]: Finished difference Result 28566 states and 45888 transitions. [2024-11-11 22:14:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:14:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:50,927 INFO L225 Difference]: With dead ends: 28566 [2024-11-11 22:14:50,927 INFO L226 Difference]: Without dead ends: 17362 [2024-11-11 22:14:50,961 INFO L434 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 [2024-11-11 22:14:50,963 INFO L435 NwaCegarLoop]: 4248 mSDtfsCounter, 5029 mSDsluCounter, 16747 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 20995 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:50,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 20995 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:14:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17362 states. [2024-11-11 22:14:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17362 to 13344. [2024-11-11 22:14:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13344 states, 12447 states have (on average 1.591146460994617) internal successors, (19805), 12481 states have internal predecessors, (19805), 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) [2024-11-11 22:14:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13344 states to 13344 states and 21410 transitions. [2024-11-11 22:14:51,585 INFO L78 Accepts]: Start accepts. Automaton has 13344 states and 21410 transitions. Word has length 167 [2024-11-11 22:14:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:51,586 INFO L471 AbstractCegarLoop]: Abstraction has 13344 states and 21410 transitions. [2024-11-11 22:14:51,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 13344 states and 21410 transitions. [2024-11-11 22:14:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:51,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:51,592 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:51,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:14:51,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:51,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash 130597714, now seen corresponding path program 1 times [2024-11-11 22:14:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:51,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81832851] [2024-11-11 22:14:51,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:51,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:51,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:51,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81832851] [2024-11-11 22:14:51,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81832851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:51,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:51,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:51,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465987580] [2024-11-11 22:14:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:51,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:51,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:51,780 INFO L87 Difference]: Start difference. First operand 13344 states and 21410 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:14:55,360 INFO L93 Difference]: Finished difference Result 42660 states and 67923 transitions. [2024-11-11 22:14:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:14:55,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:14:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:14:55,463 INFO L225 Difference]: With dead ends: 42660 [2024-11-11 22:14:55,463 INFO L226 Difference]: Without dead ends: 31456 [2024-11-11 22:14:55,500 INFO L434 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 [2024-11-11 22:14:55,502 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5425 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5443 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:14:55,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5443 Valid, 22179 Invalid, 3299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3238 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:14:55,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31456 states. [2024-11-11 22:14:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31456 to 24293. [2024-11-11 22:14:56,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24293 states, 22532 states have (on average 1.5646635895615124) internal successors, (35255), 22598 states have internal predecessors, (35255), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2024-11-11 22:14:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24293 states to 24293 states and 38658 transitions. [2024-11-11 22:14:56,591 INFO L78 Accepts]: Start accepts. Automaton has 24293 states and 38658 transitions. Word has length 167 [2024-11-11 22:14:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:14:56,592 INFO L471 AbstractCegarLoop]: Abstraction has 24293 states and 38658 transitions. [2024-11-11 22:14:56,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:14:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 24293 states and 38658 transitions. [2024-11-11 22:14:56,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:14:56,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:14:56,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:14:56,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:14:56,603 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:14:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:14:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash 200245588, now seen corresponding path program 1 times [2024-11-11 22:14:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:14:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582286620] [2024-11-11 22:14:56,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:14:56,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:14:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:14:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:14:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:14:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:14:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:14:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:14:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:14:56,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:14:56,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582286620] [2024-11-11 22:14:56,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582286620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:14:56,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:14:56,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:14:56,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792918154] [2024-11-11 22:14:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:14:56,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:14:56,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:14:56,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:14:56,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:14:56,808 INFO L87 Difference]: Start difference. First operand 24293 states and 38658 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:15:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:15:01,162 INFO L93 Difference]: Finished difference Result 82251 states and 131209 transitions. [2024-11-11 22:15:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:15:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:15:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:15:01,363 INFO L225 Difference]: With dead ends: 82251 [2024-11-11 22:15:01,364 INFO L226 Difference]: Without dead ends: 60098 [2024-11-11 22:15:01,422 INFO L434 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 [2024-11-11 22:15:01,423 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5424 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3225 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5442 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:15:01,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5442 Valid, 22179 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3225 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:15:01,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60098 states. [2024-11-11 22:15:03,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60098 to 46250. [2024-11-11 22:15:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46250 states, 42761 states have (on average 1.549098477584715) internal successors, (66241), 42891 states have internal predecessors, (66241), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2024-11-11 22:15:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46250 states to 46250 states and 73726 transitions. [2024-11-11 22:15:03,422 INFO L78 Accepts]: Start accepts. Automaton has 46250 states and 73726 transitions. Word has length 167 [2024-11-11 22:15:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:15:03,422 INFO L471 AbstractCegarLoop]: Abstraction has 46250 states and 73726 transitions. [2024-11-11 22:15:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:15:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 46250 states and 73726 transitions. [2024-11-11 22:15:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:15:03,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:15:03,442 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:15:03,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:15:03,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:15:03,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:15:03,443 INFO L85 PathProgramCache]: Analyzing trace with hash 618134290, now seen corresponding path program 1 times [2024-11-11 22:15:03,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:15:03,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834778284] [2024-11-11 22:15:03,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:15:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:15:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:15:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:15:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:15:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:15:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:15:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:15:03,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:15:03,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834778284] [2024-11-11 22:15:03,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834778284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:15:03,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:15:03,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:15:03,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998070598] [2024-11-11 22:15:03,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:15:03,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:15:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:15:03,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:15:03,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:15:03,625 INFO L87 Difference]: Start difference. First operand 46250 states and 73726 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:15:10,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:15:10,456 INFO L93 Difference]: Finished difference Result 161430 states and 259623 transitions. [2024-11-11 22:15:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:15:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:15:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:15:10,857 INFO L225 Difference]: With dead ends: 161430 [2024-11-11 22:15:10,858 INFO L226 Difference]: Without dead ends: 117320 [2024-11-11 22:15:11,080 INFO L434 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 [2024-11-11 22:15:11,081 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 5423 mSDsluCounter, 17684 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5441 SdHoareTripleChecker+Valid, 22179 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:15:11,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5441 Valid, 22179 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3212 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:15:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117320 states. [2024-11-11 22:15:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117320 to 90291. [2024-11-11 22:15:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90291 states, 83346 states have (on average 1.5406018285220646) internal successors, (128403), 83604 states have internal predecessors, (128403), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-11 22:15:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90291 states to 90291 states and 145510 transitions. [2024-11-11 22:15:15,909 INFO L78 Accepts]: Start accepts. Automaton has 90291 states and 145510 transitions. Word has length 167 [2024-11-11 22:15:15,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:15:15,909 INFO L471 AbstractCegarLoop]: Abstraction has 90291 states and 145510 transitions. [2024-11-11 22:15:15,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:15:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 90291 states and 145510 transitions. [2024-11-11 22:15:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 22:15:15,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:15:15,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:15:15,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:15:15,952 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:15:15,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:15:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2017087892, now seen corresponding path program 1 times [2024-11-11 22:15:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:15:15,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641589849] [2024-11-11 22:15:15,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:15:15,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:15:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:15:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:15:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:15:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 22:15:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:15:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:15:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:15:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:15:16,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641589849] [2024-11-11 22:15:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641589849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:15:16,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:15:16,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:15:16,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029533765] [2024-11-11 22:15:16,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:15:16,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:15:16,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:15:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:15:16,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:15:16,120 INFO L87 Difference]: Start difference. First operand 90291 states and 145510 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-11 22:15:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:15:22,316 INFO L93 Difference]: Finished difference Result 207092 states and 340835 transitions. [2024-11-11 22:15:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:15:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 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 167 [2024-11-11 22:15:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:15:22,975 INFO L225 Difference]: With dead ends: 207092 [2024-11-11 22:15:22,975 INFO L226 Difference]: Without dead ends: 118941 [2024-11-11 22:15:23,207 INFO L434 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 [2024-11-11 22:15:23,208 INFO L435 NwaCegarLoop]: 4248 mSDtfsCounter, 5184 mSDsluCounter, 12596 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 16844 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:15:23,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 16844 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:15:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118941 states.