./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b445a4f49d9151eb44c8190083d36f280681906d4dfab457d725a1f68c1551d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:20:14,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:20:15,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:20:15,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:20:15,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:20:15,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:20:15,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:20:15,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:20:15,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:20:15,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:20:15,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:20:15,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:20:15,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:20:15,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:20:15,071 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:20:15,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:20:15,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:20:15,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:20:15,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:20:15,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:20:15,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:20:15,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:20:15,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:20:15,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:20:15,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:20:15,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:20:15,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:20:15,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:20:15,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:20:15,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:20:15,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:20:15,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:20:15,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:20:15,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:20:15,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:20:15,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:20:15,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:20:15,079 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b445a4f49d9151eb44c8190083d36f280681906d4dfab457d725a1f68c1551d8 [2024-10-11 04:20:15,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:20:15,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:20:15,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:20:15,312 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:20:15,312 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:20:15,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c [2024-10-11 04:20:16,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:20:17,083 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:20:17,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c [2024-10-11 04:20:17,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a54c856f9/121fa9338a564531bd901e6517b610f5/FLAG2406fe9d1 [2024-10-11 04:20:17,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a54c856f9/121fa9338a564531bd901e6517b610f5 [2024-10-11 04:20:17,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:20:17,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:20:17,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:20:17,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:20:17,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:20:17,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:20:17" (1/1) ... [2024-10-11 04:20:17,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598c8d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:17, skipping insertion in model container [2024-10-11 04:20:17,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:20:17" (1/1) ... [2024-10-11 04:20:17,304 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:20:18,568 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[380323,380336] [2024-10-11 04:20:18,593 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[383339,383352] [2024-10-11 04:20:18,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:20:18,805 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:20:19,403 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[380323,380336] [2024-10-11 04:20:19,408 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.09.cil-2.c[383339,383352] [2024-10-11 04:20:19,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:20:19,485 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:20:19,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19 WrapperNode [2024-10-11 04:20:19,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:20:19,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:20:19,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:20:19,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:20:19,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:19,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:19,935 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13059 [2024-10-11 04:20:19,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:20:19,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:20:19,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:20:19,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:20:19,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:19,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,008 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,072 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]. [2024-10-11 04:20:20,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:20:20,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:20:20,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:20:20,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:20:20,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (1/1) ... [2024-10-11 04:20:20,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:20:20,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:20:20,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:20:20,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:20:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:20:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 04:20:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 04:20:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 04:20:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 04:20:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 04:20:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 04:20:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-11 04:20:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-11 04:20:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 04:20:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 04:20:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 04:20:20,488 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 04:20:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 04:20:20,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 04:20:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:20:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:20:20,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:20:20,594 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:20:20,596 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:20:27,256 INFO L? ?]: Removed 1741 outVars from TransFormulas that were not future-live. [2024-10-11 04:20:27,257 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:20:27,353 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:20:27,353 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-11 04:20:27,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:20:27 BoogieIcfgContainer [2024-10-11 04:20:27,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:20:27,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:20:27,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:20:27,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:20:27,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:20:17" (1/3) ... [2024-10-11 04:20:27,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7eb9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:20:27, skipping insertion in model container [2024-10-11 04:20:27,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:20:19" (2/3) ... [2024-10-11 04:20:27,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7eb9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:20:27, skipping insertion in model container [2024-10-11 04:20:27,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:20:27" (3/3) ... [2024-10-11 04:20:27,361 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.09.cil-2.c [2024-10-11 04:20:27,374 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:20:27,374 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:20:27,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:20:27,483 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;@714314, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:20:27,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:20:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 2410 states, 2375 states have (on average 1.8787368421052633) internal successors, (4462), 2380 states have internal predecessors, (4462), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-11 04:20:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:27,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:27,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:27,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:27,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:27,522 INFO L85 PathProgramCache]: Analyzing trace with hash -550804208, now seen corresponding path program 1 times [2024-10-11 04:20:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688350759] [2024-10-11 04:20:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:27,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:28,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:28,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:28,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:28,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:28,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688350759] [2024-10-11 04:20:28,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688350759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:28,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:28,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 04:20:28,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128905508] [2024-10-11 04:20:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:28,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 04:20:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 04:20:28,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 04:20:28,112 INFO L87 Difference]: Start difference. First operand has 2410 states, 2375 states have (on average 1.8787368421052633) internal successors, (4462), 2380 states have internal predecessors, (4462), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:20:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:29,379 INFO L93 Difference]: Finished difference Result 4913 states and 9190 transitions. [2024-10-11 04:20:29,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:20:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-10-11 04:20:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:29,409 INFO L225 Difference]: With dead ends: 4913 [2024-10-11 04:20:29,410 INFO L226 Difference]: Without dead ends: 2505 [2024-10-11 04:20:29,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:20:29,422 INFO L432 NwaCegarLoop]: 4211 mSDtfsCounter, 778 mSDsluCounter, 12156 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 16367 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:29,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 16367 Invalid, 891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 04:20:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-10-11 04:20:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2405. [2024-10-11 04:20:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2372 states have (on average 1.8414839797639122) internal successors, (4368), 2375 states have internal predecessors, (4368), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-11 04:20:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 4416 transitions. [2024-10-11 04:20:29,546 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 4416 transitions. Word has length 132 [2024-10-11 04:20:29,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:29,547 INFO L471 AbstractCegarLoop]: Abstraction has 2405 states and 4416 transitions. [2024-10-11 04:20:29,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:20:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 4416 transitions. [2024-10-11 04:20:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:29,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:29,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:29,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:20:29,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:29,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1412637810, now seen corresponding path program 1 times [2024-10-11 04:20:29,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:29,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505609710] [2024-10-11 04:20:29,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:29,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:29,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:29,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505609710] [2024-10-11 04:20:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505609710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:29,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:20:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444753769] [2024-10-11 04:20:29,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:29,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:20:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:20:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:20:29,885 INFO L87 Difference]: Start difference. First operand 2405 states and 4416 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-10-11 04:20:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:31,961 INFO L93 Difference]: Finished difference Result 3156 states and 5664 transitions. [2024-10-11 04:20:31,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 04:20:31,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:31,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:31,971 INFO L225 Difference]: With dead ends: 3156 [2024-10-11 04:20:31,971 INFO L226 Difference]: Without dead ends: 2887 [2024-10-11 04:20:31,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:20:31,973 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 5123 mSDsluCounter, 12615 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5139 SdHoareTripleChecker+Valid, 16836 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:31,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5139 Valid, 16836 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 04:20:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2024-10-11 04:20:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2686. [2024-10-11 04:20:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2628 states have (on average 1.8222983257229832) internal successors, (4789), 2632 states have internal predecessors, (4789), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-10-11 04:20:32,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4876 transitions. [2024-10-11 04:20:32,061 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4876 transitions. Word has length 132 [2024-10-11 04:20:32,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:32,062 INFO L471 AbstractCegarLoop]: Abstraction has 2686 states and 4876 transitions. [2024-10-11 04:20:32,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-10-11 04:20:32,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4876 transitions. [2024-10-11 04:20:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:32,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:32,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:32,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:20:32,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:32,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:32,065 INFO L85 PathProgramCache]: Analyzing trace with hash -440110838, now seen corresponding path program 1 times [2024-10-11 04:20:32,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:32,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301080025] [2024-10-11 04:20:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:32,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:32,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:32,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301080025] [2024-10-11 04:20:32,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301080025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:32,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:32,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:32,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074933840] [2024-10-11 04:20:32,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:32,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:32,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:32,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:32,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:32,289 INFO L87 Difference]: Start difference. First operand 2686 states and 4876 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:34,759 INFO L93 Difference]: Finished difference Result 3831 states and 6778 transitions. [2024-10-11 04:20:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:20:34,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:34,770 INFO L225 Difference]: With dead ends: 3831 [2024-10-11 04:20:34,771 INFO L226 Difference]: Without dead ends: 3281 [2024-10-11 04:20:34,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:20:34,775 INFO L432 NwaCegarLoop]: 4352 mSDtfsCounter, 5154 mSDsluCounter, 17129 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5170 SdHoareTripleChecker+Valid, 21481 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:34,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5170 Valid, 21481 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 04:20:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2024-10-11 04:20:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2946. [2024-10-11 04:20:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2863 states have (on average 1.8050995459308419) internal successors, (5168), 2868 states have internal predecessors, (5168), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-11 04:20:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 5293 transitions. [2024-10-11 04:20:34,864 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 5293 transitions. Word has length 132 [2024-10-11 04:20:34,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:34,866 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 5293 transitions. [2024-10-11 04:20:34,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:34,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 5293 transitions. [2024-10-11 04:20:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:34,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:34,868 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:34,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:20:34,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:34,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:34,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1287034124, now seen corresponding path program 1 times [2024-10-11 04:20:34,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:34,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994275379] [2024-10-11 04:20:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:34,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:34,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:35,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:35,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:35,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:35,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:35,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:35,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994275379] [2024-10-11 04:20:35,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994275379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:35,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:35,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:35,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101371180] [2024-10-11 04:20:35,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:35,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:35,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:35,088 INFO L87 Difference]: Start difference. First operand 2946 states and 5293 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:36,282 INFO L93 Difference]: Finished difference Result 4101 states and 7223 transitions. [2024-10-11 04:20:36,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:20:36,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:36,294 INFO L225 Difference]: With dead ends: 4101 [2024-10-11 04:20:36,295 INFO L226 Difference]: Without dead ends: 3291 [2024-10-11 04:20:36,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:20:36,299 INFO L432 NwaCegarLoop]: 4169 mSDtfsCounter, 4818 mSDsluCounter, 16478 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 20647 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:36,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 20647 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 04:20:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-10-11 04:20:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 2946. [2024-10-11 04:20:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2863 states have (on average 1.8040516940272442) internal successors, (5165), 2868 states have internal predecessors, (5165), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-11 04:20:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 5290 transitions. [2024-10-11 04:20:36,376 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 5290 transitions. Word has length 132 [2024-10-11 04:20:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:36,376 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 5290 transitions. [2024-10-11 04:20:36,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 5290 transitions. [2024-10-11 04:20:36,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:36,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:36,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:36,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:20:36,379 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:36,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:36,382 INFO L85 PathProgramCache]: Analyzing trace with hash -360328818, now seen corresponding path program 1 times [2024-10-11 04:20:36,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407642518] [2024-10-11 04:20:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:36,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:36,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407642518] [2024-10-11 04:20:36,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407642518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:36,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:36,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:36,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120074715] [2024-10-11 04:20:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:36,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:36,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:36,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:36,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:36,561 INFO L87 Difference]: Start difference. First operand 2946 states and 5290 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:37,726 INFO L93 Difference]: Finished difference Result 4097 states and 7206 transitions. [2024-10-11 04:20:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:20:37,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:37,738 INFO L225 Difference]: With dead ends: 4097 [2024-10-11 04:20:37,738 INFO L226 Difference]: Without dead ends: 3287 [2024-10-11 04:20:37,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:20:37,742 INFO L432 NwaCegarLoop]: 4169 mSDtfsCounter, 4936 mSDsluCounter, 12382 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 16551 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:37,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 16551 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 04:20:37,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2024-10-11 04:20:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2946. [2024-10-11 04:20:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2863 states have (on average 1.8030038421236465) internal successors, (5162), 2868 states have internal predecessors, (5162), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-11 04:20:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 5287 transitions. [2024-10-11 04:20:37,852 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 5287 transitions. Word has length 132 [2024-10-11 04:20:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:37,852 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 5287 transitions. [2024-10-11 04:20:37,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 5287 transitions. [2024-10-11 04:20:37,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:37,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:37,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:37,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:20:37,855 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:37,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:37,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1803287756, now seen corresponding path program 1 times [2024-10-11 04:20:37,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:37,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45735420] [2024-10-11 04:20:37,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:37,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:37,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:37,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:38,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:38,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:38,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45735420] [2024-10-11 04:20:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45735420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:38,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:38,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630156912] [2024-10-11 04:20:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:38,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:38,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:38,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:38,072 INFO L87 Difference]: Start difference. First operand 2946 states and 5287 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:39,322 INFO L93 Difference]: Finished difference Result 4093 states and 7189 transitions. [2024-10-11 04:20:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:20:39,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:39,334 INFO L225 Difference]: With dead ends: 4093 [2024-10-11 04:20:39,335 INFO L226 Difference]: Without dead ends: 3283 [2024-10-11 04:20:39,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:20:39,339 INFO L432 NwaCegarLoop]: 4169 mSDtfsCounter, 4814 mSDsluCounter, 16478 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4831 SdHoareTripleChecker+Valid, 20647 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:39,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4831 Valid, 20647 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 04:20:39,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2024-10-11 04:20:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2946. [2024-10-11 04:20:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2863 states have (on average 1.8019559902200488) internal successors, (5159), 2868 states have internal predecessors, (5159), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-11 04:20:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 5284 transitions. [2024-10-11 04:20:39,447 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 5284 transitions. Word has length 132 [2024-10-11 04:20:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:39,447 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 5284 transitions. [2024-10-11 04:20:39,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 5284 transitions. [2024-10-11 04:20:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:39,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:39,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:20:39,450 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 764703182, now seen corresponding path program 1 times [2024-10-11 04:20:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796129395] [2024-10-11 04:20:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:39,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:39,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796129395] [2024-10-11 04:20:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796129395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:39,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:39,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075299544] [2024-10-11 04:20:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:39,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:39,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:39,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:39,645 INFO L87 Difference]: Start difference. First operand 2946 states and 5284 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:41,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:41,718 INFO L93 Difference]: Finished difference Result 4807 states and 8335 transitions. [2024-10-11 04:20:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:20:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:41,733 INFO L225 Difference]: With dead ends: 4807 [2024-10-11 04:20:41,733 INFO L226 Difference]: Without dead ends: 3997 [2024-10-11 04:20:41,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:20:41,739 INFO L432 NwaCegarLoop]: 4191 mSDtfsCounter, 5207 mSDsluCounter, 16694 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 20885 SdHoareTripleChecker+Invalid, 2455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:41,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 20885 Invalid, 2455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:20:41,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2024-10-11 04:20:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 3479. [2024-10-11 04:20:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3346 states have (on average 1.7722653915122535) internal successors, (5930), 3353 states have internal predecessors, (5930), 97 states have call successors, (97), 31 states have call predecessors, (97), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-11 04:20:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 6135 transitions. [2024-10-11 04:20:41,843 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 6135 transitions. Word has length 132 [2024-10-11 04:20:41,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:41,844 INFO L471 AbstractCegarLoop]: Abstraction has 3479 states and 6135 transitions. [2024-10-11 04:20:41,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:41,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 6135 transitions. [2024-10-11 04:20:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:41,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:41,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:41,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:20:41,847 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:41,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:41,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1208462196, now seen corresponding path program 1 times [2024-10-11 04:20:41,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:41,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095078521] [2024-10-11 04:20:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:41,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:41,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:41,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:42,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:42,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:42,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095078521] [2024-10-11 04:20:42,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095078521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:42,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:42,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:42,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579371955] [2024-10-11 04:20:42,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:42,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:42,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:42,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:42,019 INFO L87 Difference]: Start difference. First operand 3479 states and 6135 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:43,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:43,147 INFO L93 Difference]: Finished difference Result 5325 states and 9172 transitions. [2024-10-11 04:20:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:20:43,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:43,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:43,164 INFO L225 Difference]: With dead ends: 5325 [2024-10-11 04:20:43,168 INFO L226 Difference]: Without dead ends: 3982 [2024-10-11 04:20:43,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:20:43,175 INFO L432 NwaCegarLoop]: 4169 mSDtfsCounter, 4933 mSDsluCounter, 12382 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 16551 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:43,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4950 Valid, 16551 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 04:20:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2024-10-11 04:20:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3479. [2024-10-11 04:20:43,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3346 states have (on average 1.7707710699342498) internal successors, (5925), 3353 states have internal predecessors, (5925), 97 states have call successors, (97), 31 states have call predecessors, (97), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-11 04:20:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 6130 transitions. [2024-10-11 04:20:43,278 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 6130 transitions. Word has length 132 [2024-10-11 04:20:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:43,279 INFO L471 AbstractCegarLoop]: Abstraction has 3479 states and 6130 transitions. [2024-10-11 04:20:43,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 6130 transitions. [2024-10-11 04:20:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:43,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:43,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:43,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:20:43,281 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:43,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash 944644622, now seen corresponding path program 1 times [2024-10-11 04:20:43,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:43,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505306669] [2024-10-11 04:20:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:43,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:43,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:43,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505306669] [2024-10-11 04:20:43,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505306669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:43,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:43,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:43,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489040193] [2024-10-11 04:20:43,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:43,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:43,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:43,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:43,508 INFO L87 Difference]: Start difference. First operand 3479 states and 6130 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:45,715 INFO L93 Difference]: Finished difference Result 6706 states and 11378 transitions. [2024-10-11 04:20:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:20:45,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:45,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:45,736 INFO L225 Difference]: With dead ends: 6706 [2024-10-11 04:20:45,736 INFO L226 Difference]: Without dead ends: 5363 [2024-10-11 04:20:45,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:20:45,745 INFO L432 NwaCegarLoop]: 4350 mSDtfsCounter, 5119 mSDsluCounter, 17129 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:45,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5135 Valid, 21479 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 04:20:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2024-10-11 04:20:45,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 4545. [2024-10-11 04:20:45,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 4312 states have (on average 1.7293599257884973) internal successors, (7457), 4323 states have internal predecessors, (7457), 169 states have call successors, (169), 55 states have call predecessors, (169), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-11 04:20:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 7828 transitions. [2024-10-11 04:20:45,902 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 7828 transitions. Word has length 132 [2024-10-11 04:20:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:45,903 INFO L471 AbstractCegarLoop]: Abstraction has 4545 states and 7828 transitions. [2024-10-11 04:20:45,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 7828 transitions. [2024-10-11 04:20:45,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:45,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:45,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:45,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:20:45,906 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:45,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 321363020, now seen corresponding path program 1 times [2024-10-11 04:20:45,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160258403] [2024-10-11 04:20:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:45,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:45,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:46,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:46,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:46,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:46,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:46,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160258403] [2024-10-11 04:20:46,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160258403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:46,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:46,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:46,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684789315] [2024-10-11 04:20:46,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:46,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:46,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:46,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:46,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:46,075 INFO L87 Difference]: Start difference. First operand 4545 states and 7828 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:48,394 INFO L93 Difference]: Finished difference Result 10510 states and 17518 transitions. [2024-10-11 04:20:48,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:20:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:48,416 INFO L225 Difference]: With dead ends: 10510 [2024-10-11 04:20:48,416 INFO L226 Difference]: Without dead ends: 8101 [2024-10-11 04:20:48,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:20:48,428 INFO L432 NwaCegarLoop]: 4350 mSDtfsCounter, 5124 mSDsluCounter, 17129 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5140 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:48,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5140 Valid, 21479 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 04:20:48,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8101 states. [2024-10-11 04:20:48,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8101 to 6682. [2024-10-11 04:20:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 6249 states have (on average 1.6845895343254922) internal successors, (10527), 6268 states have internal predecessors, (10527), 313 states have call successors, (313), 103 states have call predecessors, (313), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-10-11 04:20:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 11248 transitions. [2024-10-11 04:20:48,694 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 11248 transitions. Word has length 132 [2024-10-11 04:20:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 6682 states and 11248 transitions. [2024-10-11 04:20:48,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 11248 transitions. [2024-10-11 04:20:48,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:48,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:48,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:48,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:20:48,700 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:48,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash 439804494, now seen corresponding path program 1 times [2024-10-11 04:20:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:48,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614098109] [2024-10-11 04:20:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:48,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:48,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:48,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614098109] [2024-10-11 04:20:48,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614098109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:48,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:48,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:48,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751748518] [2024-10-11 04:20:48,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:48,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:48,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:48,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:48,858 INFO L87 Difference]: Start difference. First operand 6682 states and 11248 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:51,923 INFO L93 Difference]: Finished difference Result 19779 states and 32558 transitions. [2024-10-11 04:20:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:20:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:51,969 INFO L225 Difference]: With dead ends: 19779 [2024-10-11 04:20:51,970 INFO L226 Difference]: Without dead ends: 15233 [2024-10-11 04:20:51,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:20:51,989 INFO L432 NwaCegarLoop]: 4347 mSDtfsCounter, 5192 mSDsluCounter, 17121 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 21468 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:51,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 21468 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3244 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 04:20:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15233 states. [2024-10-11 04:20:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15233 to 10796. [2024-10-11 04:20:52,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10796 states, 9979 states have (on average 1.645355246016635) internal successors, (16419), 10014 states have internal predecessors, (16419), 585 states have call successors, (585), 199 states have call predecessors, (585), 230 states have return successors, (858), 614 states have call predecessors, (858), 583 states have call successors, (858) [2024-10-11 04:20:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10796 states to 10796 states and 17862 transitions. [2024-10-11 04:20:52,575 INFO L78 Accepts]: Start accepts. Automaton has 10796 states and 17862 transitions. Word has length 132 [2024-10-11 04:20:52,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:52,575 INFO L471 AbstractCegarLoop]: Abstraction has 10796 states and 17862 transitions. [2024-10-11 04:20:52,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states and 17862 transitions. [2024-10-11 04:20:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:52,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:52,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:52,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:20:52,582 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:52,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1593589552, now seen corresponding path program 1 times [2024-10-11 04:20:52,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809027750] [2024-10-11 04:20:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:52,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:52,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:52,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809027750] [2024-10-11 04:20:52,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809027750] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:52,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:52,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:52,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563744657] [2024-10-11 04:20:52,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:52,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:52,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:52,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:52,730 INFO L87 Difference]: Start difference. First operand 10796 states and 17862 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:20:55,915 INFO L93 Difference]: Finished difference Result 35747 states and 58550 transitions. [2024-10-11 04:20:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:20:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:20:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:20:56,005 INFO L225 Difference]: With dead ends: 35747 [2024-10-11 04:20:56,005 INFO L226 Difference]: Without dead ends: 27087 [2024-10-11 04:20:56,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:20:56,040 INFO L432 NwaCegarLoop]: 4348 mSDtfsCounter, 5377 mSDsluCounter, 17124 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5403 SdHoareTripleChecker+Valid, 21472 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:20:56,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5403 Valid, 21472 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2723 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 04:20:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27087 states. [2024-10-11 04:20:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27087 to 19181. [2024-10-11 04:20:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19181 states, 17612 states have (on average 1.6191801044742222) internal successors, (28517), 17679 states have internal predecessors, (28517), 1113 states have call successors, (1113), 391 states have call predecessors, (1113), 454 states have return successors, (1904), 1174 states have call predecessors, (1904), 1111 states have call successors, (1904) [2024-10-11 04:20:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19181 states to 19181 states and 31534 transitions. [2024-10-11 04:20:57,114 INFO L78 Accepts]: Start accepts. Automaton has 19181 states and 31534 transitions. Word has length 132 [2024-10-11 04:20:57,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:20:57,114 INFO L471 AbstractCegarLoop]: Abstraction has 19181 states and 31534 transitions. [2024-10-11 04:20:57,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:20:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 19181 states and 31534 transitions. [2024-10-11 04:20:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:20:57,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:20:57,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:20:57,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:20:57,124 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:20:57,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:20:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 834669070, now seen corresponding path program 1 times [2024-10-11 04:20:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:20:57,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566949596] [2024-10-11 04:20:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:20:57,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:20:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:20:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:20:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:20:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:20:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:20:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:20:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:20:57,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:20:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566949596] [2024-10-11 04:20:57,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566949596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:20:57,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:20:57,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:20:57,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423641046] [2024-10-11 04:20:57,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:20:57,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:20:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:20:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:20:57,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:20:57,284 INFO L87 Difference]: Start difference. First operand 19181 states and 31534 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:21:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:21:01,932 INFO L93 Difference]: Finished difference Result 67650 states and 111180 transitions. [2024-10-11 04:21:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:21:01,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:21:01,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:21:02,070 INFO L225 Difference]: With dead ends: 67650 [2024-10-11 04:21:02,070 INFO L226 Difference]: Without dead ends: 50605 [2024-10-11 04:21:02,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:21:02,112 INFO L432 NwaCegarLoop]: 4348 mSDtfsCounter, 5341 mSDsluCounter, 17124 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5367 SdHoareTripleChecker+Valid, 21472 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:21:02,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5367 Valid, 21472 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 04:21:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50605 states. [2024-10-11 04:21:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50605 to 35950. [2024-10-11 04:21:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35950 states, 32909 states have (on average 1.6036646510073231) internal successors, (52775), 33040 states have internal predecessors, (52775), 2137 states have call successors, (2137), 775 states have call predecessors, (2137), 902 states have return successors, (4450), 2262 states have call predecessors, (4450), 2135 states have call successors, (4450) [2024-10-11 04:21:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35950 states to 35950 states and 59362 transitions. [2024-10-11 04:21:04,053 INFO L78 Accepts]: Start accepts. Automaton has 35950 states and 59362 transitions. Word has length 132 [2024-10-11 04:21:04,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:21:04,054 INFO L471 AbstractCegarLoop]: Abstraction has 35950 states and 59362 transitions. [2024-10-11 04:21:04,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:21:04,054 INFO L276 IsEmpty]: Start isEmpty. Operand 35950 states and 59362 transitions. [2024-10-11 04:21:04,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:21:04,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:21:04,073 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:21:04,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:21:04,073 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:21:04,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:21:04,073 INFO L85 PathProgramCache]: Analyzing trace with hash -472473328, now seen corresponding path program 1 times [2024-10-11 04:21:04,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:21:04,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236126460] [2024-10-11 04:21:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:21:04,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:21:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:21:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:21:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:21:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:21:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:21:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:21:04,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:21:04,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236126460] [2024-10-11 04:21:04,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236126460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:21:04,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:21:04,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:21:04,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768191275] [2024-10-11 04:21:04,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:21:04,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:21:04,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:21:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:21:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:21:04,227 INFO L87 Difference]: Start difference. First operand 35950 states and 59362 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:21:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:21:11,471 INFO L93 Difference]: Finished difference Result 130497 states and 216722 transitions. [2024-10-11 04:21:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:21:11,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:21:11,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:21:11,811 INFO L225 Difference]: With dead ends: 130497 [2024-10-11 04:21:11,811 INFO L226 Difference]: Without dead ends: 96683 [2024-10-11 04:21:11,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:21:11,903 INFO L432 NwaCegarLoop]: 4193 mSDtfsCounter, 5227 mSDsluCounter, 16692 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 20885 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:21:11,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5242 Valid, 20885 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 04:21:11,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96683 states. [2024-10-11 04:21:16,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96683 to 69487. [2024-10-11 04:21:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69487 states, 63566 states have (on average 1.5954598370197905) internal successors, (101417), 63825 states have internal predecessors, (101417), 4121 states have call successors, (4121), 1543 states have call predecessors, (4121), 1798 states have return successors, (10936), 4374 states have call predecessors, (10936), 4119 states have call successors, (10936) [2024-10-11 04:21:16,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69487 states to 69487 states and 116474 transitions. [2024-10-11 04:21:16,999 INFO L78 Accepts]: Start accepts. Automaton has 69487 states and 116474 transitions. Word has length 132 [2024-10-11 04:21:17,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:21:17,000 INFO L471 AbstractCegarLoop]: Abstraction has 69487 states and 116474 transitions. [2024-10-11 04:21:17,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:21:17,000 INFO L276 IsEmpty]: Start isEmpty. Operand 69487 states and 116474 transitions. [2024-10-11 04:21:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-11 04:21:17,033 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:21:17,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:21:17,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:21:17,034 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:21:17,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:21:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1425023438, now seen corresponding path program 1 times [2024-10-11 04:21:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:21:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770088369] [2024-10-11 04:21:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:21:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:21:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:21:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 04:21:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 04:21:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 04:21:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 04:21:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:21:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:21:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:21:17,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770088369] [2024-10-11 04:21:17,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770088369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:21:17,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:21:17,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:21:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465128199] [2024-10-11 04:21:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:21:17,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:21:17,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:21:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:21:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:21:17,184 INFO L87 Difference]: Start difference. First operand 69487 states and 116474 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 04:21:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:21:30,142 INFO L93 Difference]: Finished difference Result 254272 states and 430312 transitions. [2024-10-11 04:21:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:21:30,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 132 [2024-10-11 04:21:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:21:31,047 INFO L225 Difference]: With dead ends: 254272 [2024-10-11 04:21:31,048 INFO L226 Difference]: Without dead ends: 186921 [2024-10-11 04:21:31,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:21:31,224 INFO L432 NwaCegarLoop]: 4348 mSDtfsCounter, 5269 mSDsluCounter, 17124 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 21472 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:21:31,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 21472 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:21:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186921 states.