./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.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 ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:20:18,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:20:18,218 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:20:18,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:20:18,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:20:18,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:20:18,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:20:18,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:20:18,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:20:18,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:20:18,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:20:18,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:20:18,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:20:18,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:20:18,254 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:20:18,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:20:18,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:20:18,255 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:20:18,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:20:18,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:20:18,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:20:18,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:20:18,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:20:18,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:20:18,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:20:18,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:20:18,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:20:18,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:20:18,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:20:18,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:20:18,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:20:18,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:20:18,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:20:18,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:20:18,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:20:18,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:20:18,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:20:18,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:20:18,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:20:18,261 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:20:18,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:20:18,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:20:18,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1cd52a445477adf7d2011977810418f8e00abf9d0587e75a609261005f64da [2024-10-24 02:20:18,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:20:18,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:20:18,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:20:18,541 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:20:18,542 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:20:18,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2024-10-24 02:20:19,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:20:20,675 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:20:20,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c [2024-10-24 02:20:20,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329dc1b5a/644181b943294b229f3a9573aa2864f4/FLAGcc1899872 [2024-10-24 02:20:20,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329dc1b5a/644181b943294b229f3a9573aa2864f4 [2024-10-24 02:20:20,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:20:20,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:20:20,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:20:20,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:20:20,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:20:20,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:20:20" (1/1) ... [2024-10-24 02:20:20,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1dcb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:20, skipping insertion in model container [2024-10-24 02:20:20,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:20:20" (1/1) ... [2024-10-24 02:20:20,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:20:22,497 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2024-10-24 02:20:22,525 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2024-10-24 02:20:22,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:20:22,853 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:20:23,633 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[380323,380336] [2024-10-24 02:20:23,639 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.13.cil-2.c[383339,383352] [2024-10-24 02:20:23,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:20:23,732 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:20:23,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23 WrapperNode [2024-10-24 02:20:23,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:20:23,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:20:23,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:20:23,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:20:23,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:23,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,147 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2024-10-24 02:20:24,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:20:24,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:20:24,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:20:24,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:20:24,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,475 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 02:20:24,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:24,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:25,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:20:25,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:20:25,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:20:25,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:20:25,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (1/1) ... [2024-10-24 02:20:25,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:20:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:20:25,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 02:20:25,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 02:20:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:20:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:20:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:20:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:20:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:20:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:20:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:20:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:20:25,227 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:20:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:20:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:20:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:20:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:20:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:20:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:20:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:20:25,389 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:20:25,392 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:20:33,328 INFO L? ?]: Removed 1761 outVars from TransFormulas that were not future-live. [2024-10-24 02:20:33,328 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:20:33,458 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:20:33,458 INFO L314 CfgBuilder]: Removed 17 assume(true) statements. [2024-10-24 02:20:33,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:20:33 BoogieIcfgContainer [2024-10-24 02:20:33,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:20:33,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:20:33,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:20:33,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:20:33,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:20:20" (1/3) ... [2024-10-24 02:20:33,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7e74ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:20:33, skipping insertion in model container [2024-10-24 02:20:33,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:23" (2/3) ... [2024-10-24 02:20:33,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7e74ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:20:33, skipping insertion in model container [2024-10-24 02:20:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:20:33" (3/3) ... [2024-10-24 02:20:33,469 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.13.cil-2.c [2024-10-24 02:20:33,485 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:20:33,486 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:20:33,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:20:33,613 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;@50812cfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:20:33,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:20:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:20:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:33,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:33,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:33,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:33,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash -5637846, now seen corresponding path program 1 times [2024-10-24 02:20:33,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:33,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681556909] [2024-10-24 02:20:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:34,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:34,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681556909] [2024-10-24 02:20:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681556909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:34,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:20:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659187839] [2024-10-24 02:20:34,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:34,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:20:34,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:34,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:20:34,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:20:34,477 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:36,913 INFO L93 Difference]: Finished difference Result 5122 states and 9562 transitions. [2024-10-24 02:20:36,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:20:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:36,953 INFO L225 Difference]: With dead ends: 5122 [2024-10-24 02:20:36,953 INFO L226 Difference]: Without dead ends: 2630 [2024-10-24 02:20:36,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:20:36,972 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 1048 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 16502 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:36,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 16502 Invalid, 1206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 02:20:36,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-24 02:20:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-24 02:20:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.8354378818737271) internal successors, (4506), 2457 states have internal predecessors, (4506), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:20:37,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4560 transitions. [2024-10-24 02:20:37,160 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4560 transitions. Word has length 171 [2024-10-24 02:20:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:37,161 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4560 transitions. [2024-10-24 02:20:37,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4560 transitions. [2024-10-24 02:20:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:37,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:37,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:37,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:20:37,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:37,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash -575909652, now seen corresponding path program 1 times [2024-10-24 02:20:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:37,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275560735] [2024-10-24 02:20:37,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:37,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:37,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275560735] [2024-10-24 02:20:37,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275560735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:37,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:37,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:20:37,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59551037] [2024-10-24 02:20:37,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:37,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:20:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:37,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:20:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:20:37,557 INFO L87 Difference]: Start difference. First operand 2490 states and 4560 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:39,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:39,809 INFO L93 Difference]: Finished difference Result 2984 states and 5386 transitions. [2024-10-24 02:20:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:20:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:39,824 INFO L225 Difference]: With dead ends: 2984 [2024-10-24 02:20:39,825 INFO L226 Difference]: Without dead ends: 2630 [2024-10-24 02:20:39,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:20:39,829 INFO L432 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:39,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 02:20:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-24 02:20:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-24 02:20:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.835030549898167) internal successors, (4505), 2457 states have internal predecessors, (4505), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 02:20:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4559 transitions. [2024-10-24 02:20:39,903 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4559 transitions. Word has length 171 [2024-10-24 02:20:39,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:39,905 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4559 transitions. [2024-10-24 02:20:39,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4559 transitions. [2024-10-24 02:20:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:39,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:39,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:39,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:20:39,912 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:39,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash 35359406, now seen corresponding path program 1 times [2024-10-24 02:20:39,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:39,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113877078] [2024-10-24 02:20:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:39,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:40,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:40,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113877078] [2024-10-24 02:20:40,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113877078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:40,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:40,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:20:40,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736733386] [2024-10-24 02:20:40,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:40,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:20:40,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:20:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:20:40,303 INFO L87 Difference]: Start difference. First operand 2490 states and 4559 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:43,476 INFO L93 Difference]: Finished difference Result 3491 states and 6239 transitions. [2024-10-24 02:20:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:20:43,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:43,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:43,493 INFO L225 Difference]: With dead ends: 3491 [2024-10-24 02:20:43,493 INFO L226 Difference]: Without dead ends: 3141 [2024-10-24 02:20:43,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:43,500 INFO L432 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:43,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 02:20:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2024-10-24 02:20:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2862. [2024-10-24 02:20:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2798 states have (on average 1.812723373838456) internal successors, (5072), 2801 states have internal predecessors, (5072), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-10-24 02:20:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 5173 transitions. [2024-10-24 02:20:43,606 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 5173 transitions. Word has length 171 [2024-10-24 02:20:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:43,606 INFO L471 AbstractCegarLoop]: Abstraction has 2862 states and 5173 transitions. [2024-10-24 02:20:43,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 5173 transitions. [2024-10-24 02:20:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:43,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:43,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:43,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:20:43,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:43,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:43,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1314708146, now seen corresponding path program 1 times [2024-10-24 02:20:43,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:43,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849625079] [2024-10-24 02:20:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:43,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:43,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:43,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:43,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:44,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:44,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849625079] [2024-10-24 02:20:44,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849625079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:44,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:44,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:44,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755967486] [2024-10-24 02:20:44,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:44,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:44,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:44,007 INFO L87 Difference]: Start difference. First operand 2862 states and 5173 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:48,026 INFO L93 Difference]: Finished difference Result 4396 states and 7749 transitions. [2024-10-24 02:20:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:20:48,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:48,043 INFO L225 Difference]: With dead ends: 4396 [2024-10-24 02:20:48,043 INFO L226 Difference]: Without dead ends: 3674 [2024-10-24 02:20:48,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:20:48,048 INFO L432 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:48,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 02:20:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-10-24 02:20:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3205. [2024-10-24 02:20:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7933804627249357) internal successors, (5581), 3116 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:20:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5728 transitions. [2024-10-24 02:20:48,172 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5728 transitions. Word has length 171 [2024-10-24 02:20:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:48,173 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5728 transitions. [2024-10-24 02:20:48,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5728 transitions. [2024-10-24 02:20:48,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:48,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:48,176 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:48,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:20:48,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:48,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1050060656, now seen corresponding path program 1 times [2024-10-24 02:20:48,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:48,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741097197] [2024-10-24 02:20:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:48,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741097197] [2024-10-24 02:20:48,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741097197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:48,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:48,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67529596] [2024-10-24 02:20:48,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:48,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:48,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:48,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:48,522 INFO L87 Difference]: Start difference. First operand 3205 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:50,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:50,672 INFO L93 Difference]: Finished difference Result 4759 states and 8350 transitions. [2024-10-24 02:20:50,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:50,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:50,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:50,694 INFO L225 Difference]: With dead ends: 4759 [2024-10-24 02:20:50,695 INFO L226 Difference]: Without dead ends: 3694 [2024-10-24 02:20:50,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:50,704 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5115 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5136 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:50,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5136 Valid, 20880 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:20:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2024-10-24 02:20:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3205. [2024-10-24 02:20:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7924164524421593) internal successors, (5578), 3116 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:20:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5725 transitions. [2024-10-24 02:20:50,850 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5725 transitions. Word has length 171 [2024-10-24 02:20:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:50,850 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5725 transitions. [2024-10-24 02:20:50,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5725 transitions. [2024-10-24 02:20:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:50,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:50,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:50,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:20:50,854 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:50,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash -273118290, now seen corresponding path program 1 times [2024-10-24 02:20:50,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:50,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892169987] [2024-10-24 02:20:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:50,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:50,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:51,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:51,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:51,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:51,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:51,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:51,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892169987] [2024-10-24 02:20:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892169987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989172039] [2024-10-24 02:20:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:51,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:51,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:51,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:51,161 INFO L87 Difference]: Start difference. First operand 3205 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:53,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:53,342 INFO L93 Difference]: Finished difference Result 4755 states and 8333 transitions. [2024-10-24 02:20:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:53,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:53,357 INFO L225 Difference]: With dead ends: 4755 [2024-10-24 02:20:53,358 INFO L226 Difference]: Without dead ends: 3690 [2024-10-24 02:20:53,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:53,363 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:53,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 02:20:53,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2024-10-24 02:20:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3205. [2024-10-24 02:20:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.791452442159383) internal successors, (5575), 3116 states have internal predecessors, (5575), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:20:53,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5722 transitions. [2024-10-24 02:20:53,528 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5722 transitions. Word has length 171 [2024-10-24 02:20:53,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:53,528 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5722 transitions. [2024-10-24 02:20:53,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:53,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5722 transitions. [2024-10-24 02:20:53,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:53,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:53,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:53,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:20:53,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:53,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:53,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1623861168, now seen corresponding path program 1 times [2024-10-24 02:20:53,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:53,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183483853] [2024-10-24 02:20:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:53,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:53,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:53,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183483853] [2024-10-24 02:20:53,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183483853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:53,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:53,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:53,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118291449] [2024-10-24 02:20:53,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:53,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:53,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:53,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:53,903 INFO L87 Difference]: Start difference. First operand 3205 states and 5722 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:55,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:55,799 INFO L93 Difference]: Finished difference Result 4751 states and 8316 transitions. [2024-10-24 02:20:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:20:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:55,822 INFO L225 Difference]: With dead ends: 4751 [2024-10-24 02:20:55,822 INFO L226 Difference]: Without dead ends: 3686 [2024-10-24 02:20:55,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:55,835 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5274 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:55,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 16750 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:20:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-10-24 02:20:55,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3205. [2024-10-24 02:20:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7904884318766068) internal successors, (5572), 3116 states have internal predecessors, (5572), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-24 02:20:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5719 transitions. [2024-10-24 02:20:55,989 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5719 transitions. Word has length 171 [2024-10-24 02:20:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:55,990 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5719 transitions. [2024-10-24 02:20:55,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5719 transitions. [2024-10-24 02:20:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:20:55,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:55,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:20:55,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:20:55,995 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:55,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1962148718, now seen corresponding path program 1 times [2024-10-24 02:20:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:55,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613292155] [2024-10-24 02:20:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:20:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:20:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:20:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:20:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:20:56,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:56,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613292155] [2024-10-24 02:20:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613292155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:56,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:56,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828490500] [2024-10-24 02:20:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:56,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:56,311 INFO L87 Difference]: Start difference. First operand 3205 states and 5719 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:59,950 INFO L93 Difference]: Finished difference Result 5709 states and 9880 transitions. [2024-10-24 02:20:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:20:59,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:20:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:59,969 INFO L225 Difference]: With dead ends: 5709 [2024-10-24 02:20:59,969 INFO L226 Difference]: Without dead ends: 4644 [2024-10-24 02:20:59,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:20:59,978 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:59,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 02:20:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-10-24 02:21:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 3904. [2024-10-24 02:21:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7593924860111911) internal successors, (6603), 3759 states have internal predecessors, (6603), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-24 02:21:00,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6846 transitions. [2024-10-24 02:21:00,148 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6846 transitions. Word has length 171 [2024-10-24 02:21:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:00,150 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6846 transitions. [2024-10-24 02:21:00,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6846 transitions. [2024-10-24 02:21:00,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:00,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:00,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:00,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:21:00,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:00,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1906264080, now seen corresponding path program 1 times [2024-10-24 02:21:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126386269] [2024-10-24 02:21:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:00,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:00,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126386269] [2024-10-24 02:21:00,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126386269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034178455] [2024-10-24 02:21:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:00,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:00,459 INFO L87 Difference]: Start difference. First operand 3904 states and 6846 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:02,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:02,357 INFO L93 Difference]: Finished difference Result 6395 states and 10995 transitions. [2024-10-24 02:21:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:02,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:02,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:02,382 INFO L225 Difference]: With dead ends: 6395 [2024-10-24 02:21:02,383 INFO L226 Difference]: Without dead ends: 4631 [2024-10-24 02:21:02,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:02,391 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5273 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5294 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:02,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5294 Valid, 16750 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:21:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2024-10-24 02:21:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 3904. [2024-10-24 02:21:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7580602184918732) internal successors, (6598), 3759 states have internal predecessors, (6598), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-24 02:21:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6841 transitions. [2024-10-24 02:21:02,550 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6841 transitions. Word has length 171 [2024-10-24 02:21:02,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:02,551 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6841 transitions. [2024-10-24 02:21:02,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6841 transitions. [2024-10-24 02:21:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:02,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:02,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:02,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:21:02,555 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:02,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1848273710, now seen corresponding path program 1 times [2024-10-24 02:21:02,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:02,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622996747] [2024-10-24 02:21:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:02,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:02,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:02,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:02,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622996747] [2024-10-24 02:21:02,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622996747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:02,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:02,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:02,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325866373] [2024-10-24 02:21:02,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:02,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:02,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:02,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:02,851 INFO L87 Difference]: Start difference. First operand 3904 states and 6841 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:06,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:06,807 INFO L93 Difference]: Finished difference Result 8250 states and 14007 transitions. [2024-10-24 02:21:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:06,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:06,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:06,829 INFO L225 Difference]: With dead ends: 8250 [2024-10-24 02:21:06,830 INFO L226 Difference]: Without dead ends: 6486 [2024-10-24 02:21:06,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:06,838 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:06,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 02:21:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2024-10-24 02:21:07,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 5302. [2024-10-24 02:21:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5035 states have (on average 1.717974180734856) internal successors, (8650), 5045 states have internal predecessors, (8650), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-10-24 02:21:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 9091 transitions. [2024-10-24 02:21:07,083 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 9091 transitions. Word has length 171 [2024-10-24 02:21:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:07,084 INFO L471 AbstractCegarLoop]: Abstraction has 5302 states and 9091 transitions. [2024-10-24 02:21:07,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:07,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 9091 transitions. [2024-10-24 02:21:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:07,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:07,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:07,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:21:07,088 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:07,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:07,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1692293168, now seen corresponding path program 1 times [2024-10-24 02:21:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663275076] [2024-10-24 02:21:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:07,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:07,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:07,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663275076] [2024-10-24 02:21:07,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663275076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:07,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:07,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014301116] [2024-10-24 02:21:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:07,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:07,376 INFO L87 Difference]: Start difference. First operand 5302 states and 9091 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:11,569 INFO L93 Difference]: Finished difference Result 13338 states and 22315 transitions. [2024-10-24 02:21:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:11,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:11,608 INFO L225 Difference]: With dead ends: 13338 [2024-10-24 02:21:11,608 INFO L226 Difference]: Without dead ends: 10176 [2024-10-24 02:21:11,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:11,624 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:11,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 02:21:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2024-10-24 02:21:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 8103. [2024-10-24 02:21:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6780641767490794) internal successors, (12760), 7622 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:21:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13615 transitions. [2024-10-24 02:21:12,062 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13615 transitions. Word has length 171 [2024-10-24 02:21:12,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:12,063 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13615 transitions. [2024-10-24 02:21:12,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13615 transitions. [2024-10-24 02:21:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:12,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:12,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:12,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:21:12,070 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:12,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2102903534, now seen corresponding path program 1 times [2024-10-24 02:21:12,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:12,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709823358] [2024-10-24 02:21:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:12,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:12,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:12,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709823358] [2024-10-24 02:21:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709823358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:12,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:12,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124877731] [2024-10-24 02:21:12,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:12,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:12,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:12,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:12,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:12,351 INFO L87 Difference]: Start difference. First operand 8103 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:14,292 INFO L93 Difference]: Finished difference Result 16213 states and 27056 transitions. [2024-10-24 02:21:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:14,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:14,327 INFO L225 Difference]: With dead ends: 16213 [2024-10-24 02:21:14,327 INFO L226 Difference]: Without dead ends: 10250 [2024-10-24 02:21:14,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:14,348 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:14,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:21:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2024-10-24 02:21:14,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 8103. [2024-10-24 02:21:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.675828511309837) internal successors, (12743), 7622 states have internal predecessors, (12743), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:21:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13598 transitions. [2024-10-24 02:21:14,791 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13598 transitions. Word has length 171 [2024-10-24 02:21:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:14,793 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13598 transitions. [2024-10-24 02:21:14,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13598 transitions. [2024-10-24 02:21:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:14,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:14,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:14,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:21:14,802 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:14,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:14,803 INFO L85 PathProgramCache]: Analyzing trace with hash -32979668, now seen corresponding path program 1 times [2024-10-24 02:21:14,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:14,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588681358] [2024-10-24 02:21:14,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:14,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:15,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:15,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588681358] [2024-10-24 02:21:15,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588681358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:15,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:15,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137406808] [2024-10-24 02:21:15,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:15,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:15,056 INFO L87 Difference]: Start difference. First operand 8103 states and 13598 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:17,469 INFO L93 Difference]: Finished difference Result 16195 states and 26969 transitions. [2024-10-24 02:21:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:17,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:17,503 INFO L225 Difference]: With dead ends: 16195 [2024-10-24 02:21:17,503 INFO L226 Difference]: Without dead ends: 10232 [2024-10-24 02:21:17,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:17,522 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5112 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:17,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 20880 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 02:21:17,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10232 states. [2024-10-24 02:21:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10232 to 8103. [2024-10-24 02:21:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6735928458705944) internal successors, (12726), 7622 states have internal predecessors, (12726), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-24 02:21:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13581 transitions. [2024-10-24 02:21:17,964 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13581 transitions. Word has length 171 [2024-10-24 02:21:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:17,965 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13581 transitions. [2024-10-24 02:21:17,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13581 transitions. [2024-10-24 02:21:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:17,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:17,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:17,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:21:17,971 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:17,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:17,971 INFO L85 PathProgramCache]: Analyzing trace with hash 36668206, now seen corresponding path program 1 times [2024-10-24 02:21:17,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:17,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925242526] [2024-10-24 02:21:17,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:17,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925242526] [2024-10-24 02:21:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925242526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486319259] [2024-10-24 02:21:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:18,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:18,236 INFO L87 Difference]: Start difference. First operand 8103 states and 13581 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:22,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:22,569 INFO L93 Difference]: Finished difference Result 23459 states and 38713 transitions. [2024-10-24 02:21:22,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:22,632 INFO L225 Difference]: With dead ends: 23459 [2024-10-24 02:21:22,632 INFO L226 Difference]: Without dead ends: 17496 [2024-10-24 02:21:22,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:22,660 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:22,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 02:21:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17496 states. [2024-10-24 02:21:23,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17496 to 13771. [2024-10-24 02:21:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13771 states, 12808 states have (on average 1.6400687070580886) internal successors, (21006), 12842 states have internal predecessors, (21006), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-10-24 02:21:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13771 states to 13771 states and 22743 transitions. [2024-10-24 02:21:23,494 INFO L78 Accepts]: Start accepts. Automaton has 13771 states and 22743 transitions. Word has length 171 [2024-10-24 02:21:23,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:23,495 INFO L471 AbstractCegarLoop]: Abstraction has 13771 states and 22743 transitions. [2024-10-24 02:21:23,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 13771 states and 22743 transitions. [2024-10-24 02:21:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:23,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:23,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:23,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 02:21:23,504 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:23,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash 454556908, now seen corresponding path program 1 times [2024-10-24 02:21:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:23,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100634343] [2024-10-24 02:21:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:23,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100634343] [2024-10-24 02:21:23,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100634343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:23,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:23,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:23,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214367058] [2024-10-24 02:21:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:23,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:23,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:23,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:23,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:23,773 INFO L87 Difference]: Start difference. First operand 13771 states and 22743 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:29,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:29,252 INFO L93 Difference]: Finished difference Result 49061 states and 80615 transitions. [2024-10-24 02:21:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:29,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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 171 [2024-10-24 02:21:29,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:29,350 INFO L225 Difference]: With dead ends: 49061 [2024-10-24 02:21:29,351 INFO L226 Difference]: Without dead ends: 37430 [2024-10-24 02:21:29,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:29,385 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:29,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 02:21:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37430 states. [2024-10-24 02:21:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37430 to 25068. [2024-10-24 02:21:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25068 states, 23209 states have (on average 1.6186824076866733) internal successors, (37568), 23275 states have internal predecessors, (37568), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2024-10-24 02:21:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25068 states to 25068 states and 41167 transitions. [2024-10-24 02:21:30,937 INFO L78 Accepts]: Start accepts. Automaton has 25068 states and 41167 transitions. Word has length 171 [2024-10-24 02:21:30,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:30,938 INFO L471 AbstractCegarLoop]: Abstraction has 25068 states and 41167 transitions. [2024-10-24 02:21:30,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:30,938 INFO L276 IsEmpty]: Start isEmpty. Operand 25068 states and 41167 transitions. [2024-10-24 02:21:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 02:21:30,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:30,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:30,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 02:21:30,953 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:30,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1853510510, now seen corresponding path program 1 times [2024-10-24 02:21:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:30,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266208314] [2024-10-24 02:21:30,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:30,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 02:21:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 02:21:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 02:21:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 02:21:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:31,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:31,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266208314] [2024-10-24 02:21:31,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266208314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:31,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:31,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:31,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500123216] [2024-10-24 02:21:31,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:31,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:31,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:31,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:31,223 INFO L87 Difference]: Start difference. First operand 25068 states and 41167 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 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)