./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_label46+token_ring.02.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_label46+token_ring.02.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 94e951826a6b890c42a47666caa0401c27bf1b0a09941efa99a0e4bb1e9e9065 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:20:42,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:20:42,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:20:42,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:20:42,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:20:42,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:20:42,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:20:42,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:20:42,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:20:42,979 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:20:42,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:20:42,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:20:42,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:20:42,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:20:42,983 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:20:42,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:20:42,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:20:42,984 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:20:42,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:20:42,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:20:42,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:20:42,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:20:42,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:20:42,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:20:42,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:20:42,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:20:42,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:20:42,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:20:42,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:20:42,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:20:42,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:20:42,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:20:42,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:20:42,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:20:42,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:20:42,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:20:42,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:20:42,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:20:42,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:20:42,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:20:42,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:20:42,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:20:42,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94e951826a6b890c42a47666caa0401c27bf1b0a09941efa99a0e4bb1e9e9065 [2024-10-24 02:20:43,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:20:43,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:20:43,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:20:43,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:20:43,268 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:20:43,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.c [2024-10-24 02:20:44,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:20:45,307 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:20:45,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.02.cil-2.c [2024-10-24 02:20:45,356 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb2983ac/4805d013d6594b4cb63293694572076c/FLAG804d7a169 [2024-10-24 02:20:45,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb2983ac/4805d013d6594b4cb63293694572076c [2024-10-24 02:20:45,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:20:45,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:20:45,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:20:45,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:20:45,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:20:45,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:20:45" (1/1) ... [2024-10-24 02:20:45,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbfa85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:45, skipping insertion in model container [2024-10-24 02:20:45,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:20:45" (1/1) ... [2024-10-24 02:20:45,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:20:47,077 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_label46+token_ring.02.cil-2.c[382357,382370] [2024-10-24 02:20:47,105 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_label46+token_ring.02.cil-2.c[383339,383352] [2024-10-24 02:20:47,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:20:47,249 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:20:48,041 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_label46+token_ring.02.cil-2.c[382357,382370] [2024-10-24 02:20:48,045 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_label46+token_ring.02.cil-2.c[383339,383352] [2024-10-24 02:20:48,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:20:48,121 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:20:48,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48 WrapperNode [2024-10-24 02:20:48,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:20:48,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:20:48,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:20:48,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:20:48,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,561 INFO L138 Inliner]: procedures = 48, calls = 48, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12639 [2024-10-24 02:20:48,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:20:48,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:20:48,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:20:48,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:20:48,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,883 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 02:20:48,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:48,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:20:49,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:20:49,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:20:49,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:20:49,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (1/1) ... [2024-10-24 02:20:49,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:20:49,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:20:49,307 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 02:20:49,309 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 02:20:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:20:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-24 02:20:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-24 02:20:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:20:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:20:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:20:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:20:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:20:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:20:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:20:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:20:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:20:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:20:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:20:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:20:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:20:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:20:49,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:20:49,466 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:20:49,468 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:20:57,076 INFO L? ?]: Removed 1699 outVars from TransFormulas that were not future-live. [2024-10-24 02:20:57,077 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:20:57,175 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:20:57,175 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-24 02:20:57,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:20:57 BoogieIcfgContainer [2024-10-24 02:20:57,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:20:57,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:20:57,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:20:57,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:20:57,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:20:45" (1/3) ... [2024-10-24 02:20:57,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b9a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:20:57, skipping insertion in model container [2024-10-24 02:20:57,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:20:48" (2/3) ... [2024-10-24 02:20:57,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2b9a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:20:57, skipping insertion in model container [2024-10-24 02:20:57,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:20:57" (3/3) ... [2024-10-24 02:20:57,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.02.cil-2.c [2024-10-24 02:20:57,203 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:20:57,203 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:20:57,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:20:57,328 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;@5454ddbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:20:57,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:20:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 2249 states, 2221 states have (on average 1.8860873480414229) internal successors, (4189), 2226 states have internal predecessors, (4189), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 02:20:57,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:20:57,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:57,352 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] [2024-10-24 02:20:57,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:57,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1931990387, now seen corresponding path program 1 times [2024-10-24 02:20:57,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:57,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970432265] [2024-10-24 02:20:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:20:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:20:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:20:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:57,859 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 02:20:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970432265] [2024-10-24 02:20:57,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970432265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:57,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:57,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:20:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966455456] [2024-10-24 02:20:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:57,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:20:57,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:20:57,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:20:57,894 INFO L87 Difference]: Start difference. First operand has 2249 states, 2221 states have (on average 1.8860873480414229) internal successors, (4189), 2226 states have internal predecessors, (4189), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:20:59,012 INFO L93 Difference]: Finished difference Result 4665 states and 8728 transitions. [2024-10-24 02:20:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:20:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:20:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:20:59,048 INFO L225 Difference]: With dead ends: 4665 [2024-10-24 02:20:59,048 INFO L226 Difference]: Without dead ends: 2418 [2024-10-24 02:20:59,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:20:59,063 INFO L432 NwaCegarLoop]: 4068 mSDtfsCounter, 4366 mSDsluCounter, 12180 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 16248 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:20:59,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4375 Valid, 16248 Invalid, 704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:20:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2024-10-24 02:20:59,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2357. [2024-10-24 02:20:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2313 states have (on average 1.8408992650237785) internal successors, (4258), 2317 states have internal predecessors, (4258), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2024-10-24 02:20:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 4317 transitions. [2024-10-24 02:20:59,230 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 4317 transitions. Word has length 62 [2024-10-24 02:20:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:20:59,231 INFO L471 AbstractCegarLoop]: Abstraction has 2357 states and 4317 transitions. [2024-10-24 02:20:59,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:20:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 4317 transitions. [2024-10-24 02:20:59,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:20:59,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:20:59,238 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] [2024-10-24 02:20:59,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:20:59,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:20:59,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:20:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash -230609229, now seen corresponding path program 1 times [2024-10-24 02:20:59,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:20:59,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934917350] [2024-10-24 02:20:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:20:59,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:20:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:20:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:20:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:20:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:20:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:20:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:20:59,449 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 02:20:59,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:20:59,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934917350] [2024-10-24 02:20:59,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934917350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:20:59,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:20:59,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:20:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125817641] [2024-10-24 02:20:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:20:59,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:20:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:20:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:20:59,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:20:59,454 INFO L87 Difference]: Start difference. First operand 2357 states and 4317 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:00,520 INFO L93 Difference]: Finished difference Result 2788 states and 4980 transitions. [2024-10-24 02:21:00,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:21:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:00,533 INFO L225 Difference]: With dead ends: 2788 [2024-10-24 02:21:00,533 INFO L226 Difference]: Without dead ends: 2560 [2024-10-24 02:21:00,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:00,537 INFO L432 NwaCegarLoop]: 4143 mSDtfsCounter, 4356 mSDsluCounter, 16397 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 20540 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:00,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4365 Valid, 20540 Invalid, 1067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:21:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2024-10-24 02:21:00,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2463. [2024-10-24 02:21:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2401 states have (on average 1.82923781757601) internal successors, (4392), 2406 states have internal predecessors, (4392), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2024-10-24 02:21:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 4475 transitions. [2024-10-24 02:21:00,620 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 4475 transitions. Word has length 62 [2024-10-24 02:21:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:00,621 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 4475 transitions. [2024-10-24 02:21:00,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 4475 transitions. [2024-10-24 02:21:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:21:00,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:00,626 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] [2024-10-24 02:21:00,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:21:00,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:00,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:00,627 INFO L85 PathProgramCache]: Analyzing trace with hash -711689487, now seen corresponding path program 1 times [2024-10-24 02:21:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:00,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722894858] [2024-10-24 02:21:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:00,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:00,783 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 02:21:00,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:00,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722894858] [2024-10-24 02:21:00,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722894858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:00,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:00,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695793130] [2024-10-24 02:21:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:00,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:00,786 INFO L87 Difference]: Start difference. First operand 2463 states and 4475 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:01,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:01,714 INFO L93 Difference]: Finished difference Result 3161 states and 5546 transitions. [2024-10-24 02:21:01,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:01,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:21:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:01,727 INFO L225 Difference]: With dead ends: 3161 [2024-10-24 02:21:01,728 INFO L226 Difference]: Without dead ends: 2827 [2024-10-24 02:21:01,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:01,733 INFO L432 NwaCegarLoop]: 4073 mSDtfsCounter, 4394 mSDsluCounter, 16214 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4403 SdHoareTripleChecker+Valid, 20287 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:01,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4403 Valid, 20287 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-10-24 02:21:01,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2676. [2024-10-24 02:21:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2578 states have (on average 1.8079906904577192) internal successors, (4661), 2585 states have internal predecessors, (4661), 62 states have call successors, (62), 31 states have call predecessors, (62), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2024-10-24 02:21:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 4796 transitions. [2024-10-24 02:21:01,834 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 4796 transitions. Word has length 62 [2024-10-24 02:21:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:01,835 INFO L471 AbstractCegarLoop]: Abstraction has 2676 states and 4796 transitions. [2024-10-24 02:21:01,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 4796 transitions. [2024-10-24 02:21:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:21:01,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:01,840 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] [2024-10-24 02:21:01,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:21:01,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:01,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:01,841 INFO L85 PathProgramCache]: Analyzing trace with hash -727208205, now seen corresponding path program 1 times [2024-10-24 02:21:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:01,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174288955] [2024-10-24 02:21:01,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:01,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:01,999 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 02:21:02,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:02,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174288955] [2024-10-24 02:21:02,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174288955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:02,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:02,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:02,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965730132] [2024-10-24 02:21:02,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:02,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:02,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:02,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:02,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:02,002 INFO L87 Difference]: Start difference. First operand 2676 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:03,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:03,171 INFO L93 Difference]: Finished difference Result 3963 states and 6765 transitions. [2024-10-24 02:21:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:03,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:21:03,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:03,187 INFO L225 Difference]: With dead ends: 3963 [2024-10-24 02:21:03,187 INFO L226 Difference]: Without dead ends: 3416 [2024-10-24 02:21:03,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:03,191 INFO L432 NwaCegarLoop]: 4138 mSDtfsCounter, 4364 mSDsluCounter, 16389 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4372 SdHoareTripleChecker+Valid, 20527 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:03,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4372 Valid, 20527 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:21:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2024-10-24 02:21:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 3060. [2024-10-24 02:21:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 2894 states have (on average 1.7736696613683482) internal successors, (5133), 2905 states have internal predecessors, (5133), 102 states have call successors, (102), 55 states have call predecessors, (102), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2024-10-24 02:21:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 5370 transitions. [2024-10-24 02:21:03,308 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 5370 transitions. Word has length 62 [2024-10-24 02:21:03,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:03,308 INFO L471 AbstractCegarLoop]: Abstraction has 3060 states and 5370 transitions. [2024-10-24 02:21:03,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 5370 transitions. [2024-10-24 02:21:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:21:03,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:03,311 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] [2024-10-24 02:21:03,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:21:03,311 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:03,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:03,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1080296587, now seen corresponding path program 1 times [2024-10-24 02:21:03,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:03,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338653777] [2024-10-24 02:21:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:03,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:03,425 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 02:21:03,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:03,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338653777] [2024-10-24 02:21:03,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338653777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:03,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:03,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217378987] [2024-10-24 02:21:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:03,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:03,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:03,428 INFO L87 Difference]: Start difference. First operand 3060 states and 5370 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:04,351 INFO L93 Difference]: Finished difference Result 5261 states and 8705 transitions. [2024-10-24 02:21:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:04,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:21:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:04,372 INFO L225 Difference]: With dead ends: 5261 [2024-10-24 02:21:04,373 INFO L226 Difference]: Without dead ends: 4330 [2024-10-24 02:21:04,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:04,379 INFO L432 NwaCegarLoop]: 4139 mSDtfsCounter, 4364 mSDsluCounter, 16392 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 20531 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:04,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 20531 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:21:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-10-24 02:21:04,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3865. [2024-10-24 02:21:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3567 states have (on average 1.7244182786655453) internal successors, (6151), 3586 states have internal predecessors, (6151), 178 states have call successors, (178), 103 states have call predecessors, (178), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-10-24 02:21:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 6602 transitions. [2024-10-24 02:21:04,537 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 6602 transitions. Word has length 62 [2024-10-24 02:21:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:04,537 INFO L471 AbstractCegarLoop]: Abstraction has 3865 states and 6602 transitions. [2024-10-24 02:21:04,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 6602 transitions. [2024-10-24 02:21:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:21:04,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:04,540 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] [2024-10-24 02:21:04,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:21:04,541 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:04,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 847976115, now seen corresponding path program 1 times [2024-10-24 02:21:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:04,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169536798] [2024-10-24 02:21:04,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:04,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:04,632 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 02:21:04,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:04,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169536798] [2024-10-24 02:21:04,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169536798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:04,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:04,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:21:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111464753] [2024-10-24 02:21:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:21:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:21:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:21:04,638 INFO L87 Difference]: Start difference. First operand 3865 states and 6602 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:05,763 INFO L93 Difference]: Finished difference Result 7007 states and 11395 transitions. [2024-10-24 02:21:05,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:21:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:21:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:05,798 INFO L225 Difference]: With dead ends: 7007 [2024-10-24 02:21:05,798 INFO L226 Difference]: Without dead ends: 5272 [2024-10-24 02:21:05,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 02:21:05,811 INFO L432 NwaCegarLoop]: 4153 mSDtfsCounter, 4486 mSDsluCounter, 12194 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 16347 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:05,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4511 Valid, 16347 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:21:05,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-10-24 02:21:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 4737. [2024-10-24 02:21:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 4281 states have (on average 1.6783461807988789) internal successors, (7185), 4317 states have internal predecessors, (7185), 274 states have call successors, (274), 157 states have call predecessors, (274), 180 states have return successors, (397), 278 states have call predecessors, (397), 272 states have call successors, (397) [2024-10-24 02:21:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 7856 transitions. [2024-10-24 02:21:06,126 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 7856 transitions. Word has length 62 [2024-10-24 02:21:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:06,127 INFO L471 AbstractCegarLoop]: Abstraction has 4737 states and 7856 transitions. [2024-10-24 02:21:06,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 7856 transitions. [2024-10-24 02:21:06,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:21:06,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:06,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:06,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:21:06,137 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:06,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1849177786, now seen corresponding path program 1 times [2024-10-24 02:21:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:06,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331833300] [2024-10-24 02:21:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:06,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 02:21:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331833300] [2024-10-24 02:21:06,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331833300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573595972] [2024-10-24 02:21:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:06,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:06,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:06,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:06,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 02:21:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:06,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:06,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 02:21:06,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:06,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573595972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:06,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:06,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:06,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422958628] [2024-10-24 02:21:06,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:06,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:06,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:06,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:06,518 INFO L87 Difference]: Start difference. First operand 4737 states and 7856 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:06,981 INFO L93 Difference]: Finished difference Result 9834 states and 15520 transitions. [2024-10-24 02:21:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:06,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2024-10-24 02:21:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:07,019 INFO L225 Difference]: With dead ends: 9834 [2024-10-24 02:21:07,020 INFO L226 Difference]: Without dead ends: 7227 [2024-10-24 02:21:07,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:07,034 INFO L432 NwaCegarLoop]: 4126 mSDtfsCounter, 4104 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:07,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 4278 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2024-10-24 02:21:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 7197. [2024-10-24 02:21:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7197 states, 6327 states have (on average 1.6146672988778252) internal successors, (10216), 6396 states have internal predecessors, (10216), 512 states have call successors, (512), 309 states have call predecessors, (512), 356 states have return successors, (745), 507 states have call predecessors, (745), 510 states have call successors, (745) [2024-10-24 02:21:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 11473 transitions. [2024-10-24 02:21:07,555 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 11473 transitions. Word has length 100 [2024-10-24 02:21:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:07,556 INFO L471 AbstractCegarLoop]: Abstraction has 7197 states and 11473 transitions. [2024-10-24 02:21:07,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 11473 transitions. [2024-10-24 02:21:07,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:21:07,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:07,565 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:07,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 02:21:07,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:07,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:07,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1616599654, now seen corresponding path program 1 times [2024-10-24 02:21:07,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:07,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967268509] [2024-10-24 02:21:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 02:21:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,885 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:07,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967268509] [2024-10-24 02:21:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967268509] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676117787] [2024-10-24 02:21:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:07,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:07,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:07,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:07,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 02:21:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:07,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:07,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:21:08,010 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676117787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558830074] [2024-10-24 02:21:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:08,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:08,013 INFO L87 Difference]: Start difference. First operand 7197 states and 11473 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 02:21:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:08,448 INFO L93 Difference]: Finished difference Result 16951 states and 26175 transitions. [2024-10-24 02:21:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:08,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2024-10-24 02:21:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:08,503 INFO L225 Difference]: With dead ends: 16951 [2024-10-24 02:21:08,503 INFO L226 Difference]: Without dead ends: 11885 [2024-10-24 02:21:08,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:08,528 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 145 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:08,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 8393 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2024-10-24 02:21:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 11885. [2024-10-24 02:21:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 10202 states have (on average 1.5544991178200354) internal successors, (15859), 10320 states have internal predecessors, (15859), 977 states have call successors, (977), 609 states have call predecessors, (977), 704 states have return successors, (1596), 987 states have call predecessors, (1596), 975 states have call successors, (1596) [2024-10-24 02:21:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 18432 transitions. [2024-10-24 02:21:09,204 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 18432 transitions. Word has length 100 [2024-10-24 02:21:09,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:09,205 INFO L471 AbstractCegarLoop]: Abstraction has 11885 states and 18432 transitions. [2024-10-24 02:21:09,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 02:21:09,205 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 18432 transitions. [2024-10-24 02:21:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 02:21:09,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:09,230 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:09,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 02:21:09,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-24 02:21:09,432 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:09,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:09,432 INFO L85 PathProgramCache]: Analyzing trace with hash -443554109, now seen corresponding path program 1 times [2024-10-24 02:21:09,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:09,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553423188] [2024-10-24 02:21:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 02:21:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 02:21:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-24 02:21:09,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:09,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553423188] [2024-10-24 02:21:09,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553423188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:09,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130744200] [2024-10-24 02:21:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:09,544 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:09,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 02:21:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:09,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:09,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:21:09,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130744200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196762933] [2024-10-24 02:21:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:09,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:09,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:09,765 INFO L87 Difference]: Start difference. First operand 11885 states and 18432 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 02:21:10,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:10,770 INFO L93 Difference]: Finished difference Result 31009 states and 47101 transitions. [2024-10-24 02:21:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:10,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 128 [2024-10-24 02:21:10,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:10,871 INFO L225 Difference]: With dead ends: 31009 [2024-10-24 02:21:10,871 INFO L226 Difference]: Without dead ends: 21259 [2024-10-24 02:21:10,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:10,923 INFO L432 NwaCegarLoop]: 4147 mSDtfsCounter, 4065 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4065 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:10,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4065 Valid, 4299 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21259 states. [2024-10-24 02:21:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21259 to 21151. [2024-10-24 02:21:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21151 states, 17888 states have (on average 1.5120192307692308) internal successors, (27047), 18120 states have internal predecessors, (27047), 1871 states have call successors, (1871), 1199 states have call predecessors, (1871), 1390 states have return successors, (3038), 1863 states have call predecessors, (3038), 1869 states have call successors, (3038) [2024-10-24 02:21:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21151 states to 21151 states and 31956 transitions. [2024-10-24 02:21:12,392 INFO L78 Accepts]: Start accepts. Automaton has 21151 states and 31956 transitions. Word has length 128 [2024-10-24 02:21:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:12,393 INFO L471 AbstractCegarLoop]: Abstraction has 21151 states and 31956 transitions. [2024-10-24 02:21:12,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 02:21:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 21151 states and 31956 transitions. [2024-10-24 02:21:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 02:21:12,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:12,462 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:12,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 02:21:12,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:12,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:12,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:12,665 INFO L85 PathProgramCache]: Analyzing trace with hash -36945596, now seen corresponding path program 1 times [2024-10-24 02:21:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988964733] [2024-10-24 02:21:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 02:21:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 02:21:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 02:21:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 02:21:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 02:21:12,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:12,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988964733] [2024-10-24 02:21:12,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988964733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:12,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7663691] [2024-10-24 02:21:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:12,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:12,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:12,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:12,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 02:21:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:13,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:13,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 02:21:13,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7663691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:13,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:13,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:13,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425060495] [2024-10-24 02:21:13,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:13,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:13,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:13,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:13,231 INFO L87 Difference]: Start difference. First operand 21151 states and 31956 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:21:14,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:14,194 INFO L93 Difference]: Finished difference Result 42211 states and 63898 transitions. [2024-10-24 02:21:14,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:14,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-10-24 02:21:14,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:14,297 INFO L225 Difference]: With dead ends: 42211 [2024-10-24 02:21:14,297 INFO L226 Difference]: Without dead ends: 23193 [2024-10-24 02:21:14,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:14,362 INFO L432 NwaCegarLoop]: 4123 mSDtfsCounter, 4082 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4082 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:14,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4082 Valid, 4151 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:14,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23193 states. [2024-10-24 02:21:15,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23193 to 23193. [2024-10-24 02:21:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23193 states, 19718 states have (on average 1.4555735875849478) internal successors, (28701), 19950 states have internal predecessors, (28701), 1925 states have call successors, (1925), 1357 states have call predecessors, (1925), 1548 states have return successors, (3106), 1917 states have call predecessors, (3106), 1923 states have call successors, (3106) [2024-10-24 02:21:15,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23193 states to 23193 states and 33732 transitions. [2024-10-24 02:21:15,813 INFO L78 Accepts]: Start accepts. Automaton has 23193 states and 33732 transitions. Word has length 144 [2024-10-24 02:21:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:15,814 INFO L471 AbstractCegarLoop]: Abstraction has 23193 states and 33732 transitions. [2024-10-24 02:21:15,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:21:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 23193 states and 33732 transitions. [2024-10-24 02:21:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 02:21:15,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:15,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:15,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 02:21:16,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:16,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:16,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1547018971, now seen corresponding path program 1 times [2024-10-24 02:21:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679879303] [2024-10-24 02:21:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 02:21:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 02:21:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 02:21:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 02:21:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 02:21:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679879303] [2024-10-24 02:21:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679879303] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877922304] [2024-10-24 02:21:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:16,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:16,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:16,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 02:21:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 02:21:16,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 02:21:16,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877922304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058124769] [2024-10-24 02:21:16,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:16,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:16,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:16,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:16,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:16,416 INFO L87 Difference]: Start difference. First operand 23193 states and 33732 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 02:21:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:17,742 INFO L93 Difference]: Finished difference Result 39048 states and 56092 transitions. [2024-10-24 02:21:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 144 [2024-10-24 02:21:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:17,839 INFO L225 Difference]: With dead ends: 39048 [2024-10-24 02:21:17,840 INFO L226 Difference]: Without dead ends: 24517 [2024-10-24 02:21:17,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:17,878 INFO L432 NwaCegarLoop]: 4155 mSDtfsCounter, 4079 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:17,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 4312 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24517 states. [2024-10-24 02:21:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24517 to 24377. [2024-10-24 02:21:19,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24377 states, 20790 states have (on average 1.431120731120731) internal successors, (29753), 21022 states have internal predecessors, (29753), 1945 states have call successors, (1945), 1449 states have call predecessors, (1945), 1640 states have return successors, (3218), 1937 states have call predecessors, (3218), 1943 states have call successors, (3218) [2024-10-24 02:21:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24377 states to 24377 states and 34916 transitions. [2024-10-24 02:21:19,426 INFO L78 Accepts]: Start accepts. Automaton has 24377 states and 34916 transitions. Word has length 144 [2024-10-24 02:21:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:19,427 INFO L471 AbstractCegarLoop]: Abstraction has 24377 states and 34916 transitions. [2024-10-24 02:21:19,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 02:21:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24377 states and 34916 transitions. [2024-10-24 02:21:19,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:21:19,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:19,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:19,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 02:21:19,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 02:21:19,680 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:19,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash 557859153, now seen corresponding path program 1 times [2024-10-24 02:21:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:19,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791465456] [2024-10-24 02:21:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:21:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 02:21:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:21:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 02:21:19,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791465456] [2024-10-24 02:21:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791465456] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827117273] [2024-10-24 02:21:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:19,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:19,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:19,821 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:19,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 02:21:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:19,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 02:21:19,970 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:19,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827117273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:19,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:19,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193300793] [2024-10-24 02:21:19,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:19,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:19,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:19,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:19,973 INFO L87 Difference]: Start difference. First operand 24377 states and 34916 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:21:21,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:21,999 INFO L93 Difference]: Finished difference Result 67691 states and 96134 transitions. [2024-10-24 02:21:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:22,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 145 [2024-10-24 02:21:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:22,179 INFO L225 Difference]: With dead ends: 67691 [2024-10-24 02:21:22,180 INFO L226 Difference]: Without dead ends: 45451 [2024-10-24 02:21:22,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:22,235 INFO L432 NwaCegarLoop]: 4277 mSDtfsCounter, 155 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:22,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 8401 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45451 states. [2024-10-24 02:21:24,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45451 to 45407. [2024-10-24 02:21:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45407 states, 38406 states have (on average 1.3971514867468624) internal successors, (53659), 38868 states have internal predecessors, (53659), 3775 states have call successors, (3775), 2841 states have call predecessors, (3775), 3224 states have return successors, (7134), 3761 states have call predecessors, (7134), 3773 states have call successors, (7134) [2024-10-24 02:21:25,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45407 states to 45407 states and 64568 transitions. [2024-10-24 02:21:25,099 INFO L78 Accepts]: Start accepts. Automaton has 45407 states and 64568 transitions. Word has length 145 [2024-10-24 02:21:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:25,099 INFO L471 AbstractCegarLoop]: Abstraction has 45407 states and 64568 transitions. [2024-10-24 02:21:25,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:21:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 45407 states and 64568 transitions. [2024-10-24 02:21:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:21:25,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:25,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:25,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 02:21:25,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:25,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:25,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:25,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2138110948, now seen corresponding path program 1 times [2024-10-24 02:21:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:25,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459109359] [2024-10-24 02:21:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:25,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:21:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 02:21:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:21:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-10-24 02:21:25,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:25,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459109359] [2024-10-24 02:21:25,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459109359] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192277324] [2024-10-24 02:21:25,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:25,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:25,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:25,514 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:25,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 02:21:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:25,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:25,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-24 02:21:25,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192277324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:25,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:25,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:25,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932095742] [2024-10-24 02:21:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:25,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:25,725 INFO L87 Difference]: Start difference. First operand 45407 states and 64568 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:21:28,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:28,005 INFO L93 Difference]: Finished difference Result 73407 states and 105859 transitions. [2024-10-24 02:21:28,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:28,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 145 [2024-10-24 02:21:28,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:28,158 INFO L225 Difference]: With dead ends: 73407 [2024-10-24 02:21:28,158 INFO L226 Difference]: Without dead ends: 38659 [2024-10-24 02:21:28,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:28,228 INFO L432 NwaCegarLoop]: 4120 mSDtfsCounter, 4077 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:28,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 4147 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38659 states. [2024-10-24 02:21:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38659 to 28179. [2024-10-24 02:21:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28179 states, 24002 states have (on average 1.3733438880093325) internal successors, (32963), 24244 states have internal predecessors, (32963), 2255 states have call successors, (2255), 1729 states have call predecessors, (2255), 1920 states have return successors, (3778), 2237 states have call predecessors, (3778), 2253 states have call successors, (3778) [2024-10-24 02:21:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28179 states to 28179 states and 38996 transitions. [2024-10-24 02:21:30,546 INFO L78 Accepts]: Start accepts. Automaton has 28179 states and 38996 transitions. Word has length 145 [2024-10-24 02:21:30,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:30,546 INFO L471 AbstractCegarLoop]: Abstraction has 28179 states and 38996 transitions. [2024-10-24 02:21:30,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:21:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 28179 states and 38996 transitions. [2024-10-24 02:21:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:21:30,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:30,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:21:30,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 02:21:30,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:30,776 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:30,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1382369957, now seen corresponding path program 1 times [2024-10-24 02:21:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:30,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008084603] [2024-10-24 02:21:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:21:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:21:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:21:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:21:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:21:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:21:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 02:21:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:21:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 02:21:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008084603] [2024-10-24 02:21:30,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008084603] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:30,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907042338] [2024-10-24 02:21:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:30,903 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:30,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 02:21:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:31,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:31,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:21:31,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907042338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:31,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:31,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:21:31,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518778739] [2024-10-24 02:21:31,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:31,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:31,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:31,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:31,051 INFO L87 Difference]: Start difference. First operand 28179 states and 38996 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:21:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:33,731 INFO L93 Difference]: Finished difference Result 76319 states and 105000 transitions. [2024-10-24 02:21:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:33,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 145 [2024-10-24 02:21:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted.