./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_label42+token_ring.11.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 257fbefed94a1e5b18da17b648f63b8a4a376ab6bd67ba2a090c30b5997c5667 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:23:16,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:23:16,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:23:16,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:23:16,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:23:16,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:23:16,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:23:16,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:23:16,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:23:16,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:23:16,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:23:16,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:23:16,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:23:16,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:23:16,902 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:23:16,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:23:16,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:23:16,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:23:16,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:23:16,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:23:16,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:23:16,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:23:16,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:23:16,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:23:16,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:23:16,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:23:16,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:23:16,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:23:16,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:23:16,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:23:16,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:23:16,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:23:16,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:23:16,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:23:16,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:23:16,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:23:16,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:23:16,910 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257fbefed94a1e5b18da17b648f63b8a4a376ab6bd67ba2a090c30b5997c5667 [2024-10-14 04:23:17,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:23:17,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:23:17,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:23:17,102 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:23:17,102 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:23:17,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c [2024-10-14 04:23:18,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:23:18,808 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:23:18,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.11.cil-1.c [2024-10-14 04:23:18,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4cde7dfd/50d84fffc82345fe9871236bb4471239/FLAGef93145a0 [2024-10-14 04:23:18,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4cde7dfd/50d84fffc82345fe9871236bb4471239 [2024-10-14 04:23:18,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:23:18,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:23:18,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:23:18,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:23:18,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:23:18,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:18" (1/1) ... [2024-10-14 04:23:18,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f34c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:18, skipping insertion in model container [2024-10-14 04:23:18,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:23:18" (1/1) ... [2024-10-14 04:23:19,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:23:20,317 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_label42+token_ring.11.cil-1.c[378560,378573] [2024-10-14 04:23:20,337 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_label42+token_ring.11.cil-1.c[383339,383352] [2024-10-14 04:23:20,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:23:20,522 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:23:21,108 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_label42+token_ring.11.cil-1.c[378560,378573] [2024-10-14 04:23:21,113 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_label42+token_ring.11.cil-1.c[383339,383352] [2024-10-14 04:23:21,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:23:21,179 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:23:21,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21 WrapperNode [2024-10-14 04:23:21,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:23:21,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:23:21,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:23:21,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:23:21,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,477 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-10-14 04:23:21,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:23:21,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:23:21,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:23:21,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:23:21,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,707 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]. [2024-10-14 04:23:21,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:21,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:22,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:23:22,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:23:22,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:23:22,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:23:22,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (1/1) ... [2024-10-14 04:23:22,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:23:22,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:23:22,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 04:23:22,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 04:23:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:23:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:23:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:23:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:23:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:23:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:23:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:23:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:23:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:23:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:23:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:23:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:23:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:23:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:23:22,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:23:22,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:23:22,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:23:22,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:23:22,180 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:23:22,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:23:27,878 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-10-14 04:23:27,878 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:23:27,950 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:23:27,951 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-14 04:23:27,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:27 BoogieIcfgContainer [2024-10-14 04:23:27,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:23:27,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:23:27,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:23:27,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:23:27,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:23:18" (1/3) ... [2024-10-14 04:23:27,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3da564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:27, skipping insertion in model container [2024-10-14 04:23:27,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:23:21" (2/3) ... [2024-10-14 04:23:27,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3da564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:23:27, skipping insertion in model container [2024-10-14 04:23:27,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:23:27" (3/3) ... [2024-10-14 04:23:27,957 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.11.cil-1.c [2024-10-14 04:23:27,969 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:23:27,969 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:23:28,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:23:28,059 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;@44e8a914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:23:28,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:23:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 04:23:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:28,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:28,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:28,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:28,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:28,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1350428811, now seen corresponding path program 1 times [2024-10-14 04:23:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:28,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576190926] [2024-10-14 04:23:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:28,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:28,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576190926] [2024-10-14 04:23:28,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576190926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:28,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:28,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:23:28,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685224333] [2024-10-14 04:23:28,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:28,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:23:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:23:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:23:28,741 INFO L87 Difference]: Start difference. First operand has 2456 states, 2419 states have (on average 1.8768085985944605) internal successors, (4540), 2424 states have internal predecessors, (4540), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:30,392 INFO L93 Difference]: Finished difference Result 5021 states and 9382 transitions. [2024-10-14 04:23:30,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:23:30,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:30,417 INFO L225 Difference]: With dead ends: 5021 [2024-10-14 04:23:30,417 INFO L226 Difference]: Without dead ends: 2571 [2024-10-14 04:23:30,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:23:30,426 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 916 mSDsluCounter, 12200 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 16449 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:30,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 16449 Invalid, 1051 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 04:23:30,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-10-14 04:23:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2451. [2024-10-14 04:23:30,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2416 states have (on average 1.8385761589403973) internal successors, (4442), 2419 states have internal predecessors, (4442), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-14 04:23:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 4494 transitions. [2024-10-14 04:23:30,540 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 4494 transitions. Word has length 152 [2024-10-14 04:23:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:30,540 INFO L471 AbstractCegarLoop]: Abstraction has 2451 states and 4494 transitions. [2024-10-14 04:23:30,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 4494 transitions. [2024-10-14 04:23:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:30,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:30,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:30,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:23:30,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:30,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1156668663, now seen corresponding path program 1 times [2024-10-14 04:23:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:30,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684001037] [2024-10-14 04:23:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:30,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:30,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684001037] [2024-10-14 04:23:30,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684001037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:30,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:30,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:23:30,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829321153] [2024-10-14 04:23:30,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:30,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 04:23:30,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:30,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 04:23:30,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 04:23:30,919 INFO L87 Difference]: Start difference. First operand 2451 states and 4494 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:33,338 INFO L93 Difference]: Finished difference Result 3334 states and 5970 transitions. [2024-10-14 04:23:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:23:33,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:33,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:33,351 INFO L225 Difference]: With dead ends: 3334 [2024-10-14 04:23:33,351 INFO L226 Difference]: Without dead ends: 3021 [2024-10-14 04:23:33,352 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 [2024-10-14 04:23:33,353 INFO L432 NwaCegarLoop]: 4216 mSDtfsCounter, 5341 mSDsluCounter, 12642 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5359 SdHoareTripleChecker+Valid, 16858 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:33,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5359 Valid, 16858 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 04:23:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2024-10-14 04:23:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2780. [2024-10-14 04:23:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2718 states have (on average 1.8178807947019868) internal successors, (4941), 2722 states have internal predecessors, (4941), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-10-14 04:23:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 5036 transitions. [2024-10-14 04:23:33,429 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 5036 transitions. Word has length 152 [2024-10-14 04:23:33,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:33,431 INFO L471 AbstractCegarLoop]: Abstraction has 2780 states and 5036 transitions. [2024-10-14 04:23:33,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 5036 transitions. [2024-10-14 04:23:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:33,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:33,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:33,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:23:33,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:33,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash -619702779, now seen corresponding path program 1 times [2024-10-14 04:23:33,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:33,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874483034] [2024-10-14 04:23:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:33,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:33,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:33,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874483034] [2024-10-14 04:23:33,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874483034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:33,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704163049] [2024-10-14 04:23:33,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:33,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:33,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:33,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:33,716 INFO L87 Difference]: Start difference. First operand 2780 states and 5036 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:36,468 INFO L93 Difference]: Finished difference Result 4129 states and 7292 transitions. [2024-10-14 04:23:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:36,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:36,480 INFO L225 Difference]: With dead ends: 4129 [2024-10-14 04:23:36,480 INFO L226 Difference]: Without dead ends: 3487 [2024-10-14 04:23:36,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:36,486 INFO L432 NwaCegarLoop]: 4412 mSDtfsCounter, 5370 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5388 SdHoareTripleChecker+Valid, 21751 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:36,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5388 Valid, 21751 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 04:23:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2024-10-14 04:23:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3084. [2024-10-14 04:23:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2995 states have (on average 1.7996661101836393) internal successors, (5390), 3000 states have internal predecessors, (5390), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-10-14 04:23:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 5527 transitions. [2024-10-14 04:23:36,558 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 5527 transitions. Word has length 152 [2024-10-14 04:23:36,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:36,558 INFO L471 AbstractCegarLoop]: Abstraction has 3084 states and 5527 transitions. [2024-10-14 04:23:36,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:36,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 5527 transitions. [2024-10-14 04:23:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:36,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:36,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:36,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:23:36,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:36,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1164575353, now seen corresponding path program 1 times [2024-10-14 04:23:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274953618] [2024-10-14 04:23:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:36,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:36,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:36,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:36,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274953618] [2024-10-14 04:23:36,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274953618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287676220] [2024-10-14 04:23:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:36,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:36,803 INFO L87 Difference]: Start difference. First operand 3084 states and 5527 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:39,468 INFO L93 Difference]: Finished difference Result 5294 states and 9217 transitions. [2024-10-14 04:23:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:39,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:39,486 INFO L225 Difference]: With dead ends: 5294 [2024-10-14 04:23:39,486 INFO L226 Difference]: Without dead ends: 4348 [2024-10-14 04:23:39,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:39,490 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5368 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5386 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:39,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5386 Valid, 21749 Invalid, 3537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 04:23:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2024-10-14 04:23:39,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 3693. [2024-10-14 04:23:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.771549295774648) internal successors, (6289), 3557 states have internal predecessors, (6289), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-14 04:23:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6514 transitions. [2024-10-14 04:23:39,601 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6514 transitions. Word has length 152 [2024-10-14 04:23:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:39,602 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6514 transitions. [2024-10-14 04:23:39,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6514 transitions. [2024-10-14 04:23:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:39,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:39,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:39,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:23:39,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:39,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash -489415227, now seen corresponding path program 1 times [2024-10-14 04:23:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:39,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337519858] [2024-10-14 04:23:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:39,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:39,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337519858] [2024-10-14 04:23:39,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337519858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:39,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:39,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721743582] [2024-10-14 04:23:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:39,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:39,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:39,809 INFO L87 Difference]: Start difference. First operand 3693 states and 6514 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:40,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:40,986 INFO L93 Difference]: Finished difference Result 5891 states and 10195 transitions. [2024-10-14 04:23:40,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:40,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:41,000 INFO L225 Difference]: With dead ends: 5891 [2024-10-14 04:23:41,000 INFO L226 Difference]: Without dead ends: 4336 [2024-10-14 04:23:41,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:41,004 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5113 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:41,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 16671 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 04:23:41,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2024-10-14 04:23:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 3693. [2024-10-14 04:23:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7701408450704226) internal successors, (6284), 3557 states have internal predecessors, (6284), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-14 04:23:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6509 transitions. [2024-10-14 04:23:41,107 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6509 transitions. Word has length 152 [2024-10-14 04:23:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:41,107 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6509 transitions. [2024-10-14 04:23:41,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6509 transitions. [2024-10-14 04:23:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:41,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:41,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:41,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:23:41,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:41,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:41,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1437467193, now seen corresponding path program 1 times [2024-10-14 04:23:41,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:41,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192969856] [2024-10-14 04:23:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:41,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:41,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:41,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192969856] [2024-10-14 04:23:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192969856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:41,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:41,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:41,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156763698] [2024-10-14 04:23:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:41,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:41,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:41,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:41,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:41,312 INFO L87 Difference]: Start difference. First operand 3693 states and 6509 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:42,733 INFO L93 Difference]: Finished difference Result 5885 states and 10169 transitions. [2024-10-14 04:23:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:42,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:42,752 INFO L225 Difference]: With dead ends: 5885 [2024-10-14 04:23:42,752 INFO L226 Difference]: Without dead ends: 4330 [2024-10-14 04:23:42,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:42,762 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5111 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:42,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 16671 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:23:42,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-10-14 04:23:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3693. [2024-10-14 04:23:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7687323943661972) internal successors, (6279), 3557 states have internal predecessors, (6279), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-14 04:23:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6504 transitions. [2024-10-14 04:23:42,916 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6504 transitions. Word has length 152 [2024-10-14 04:23:42,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:42,917 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6504 transitions. [2024-10-14 04:23:42,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6504 transitions. [2024-10-14 04:23:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:42,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:42,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:42,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:23:42,920 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:42,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:42,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2022238843, now seen corresponding path program 1 times [2024-10-14 04:23:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:42,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173900770] [2024-10-14 04:23:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:42,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:43,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:43,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:43,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:43,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:43,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:43,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173900770] [2024-10-14 04:23:43,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173900770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:43,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:43,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:43,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613127499] [2024-10-14 04:23:43,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:43,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:43,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:43,144 INFO L87 Difference]: Start difference. First operand 3693 states and 6504 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:44,562 INFO L93 Difference]: Finished difference Result 5878 states and 10141 transitions. [2024-10-14 04:23:44,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:44,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:44,574 INFO L225 Difference]: With dead ends: 5878 [2024-10-14 04:23:44,574 INFO L226 Difference]: Without dead ends: 4323 [2024-10-14 04:23:44,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:44,578 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 4972 mSDsluCounter, 16586 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:44,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 20789 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 04:23:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2024-10-14 04:23:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 3693. [2024-10-14 04:23:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7673239436619719) internal successors, (6274), 3557 states have internal predecessors, (6274), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-14 04:23:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6499 transitions. [2024-10-14 04:23:44,668 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6499 transitions. Word has length 152 [2024-10-14 04:23:44,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:44,668 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6499 transitions. [2024-10-14 04:23:44,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6499 transitions. [2024-10-14 04:23:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:44,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:44,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:44,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:23:44,671 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:44,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1838222855, now seen corresponding path program 1 times [2024-10-14 04:23:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:44,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373980650] [2024-10-14 04:23:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:44,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373980650] [2024-10-14 04:23:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373980650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:44,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:44,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397467903] [2024-10-14 04:23:44,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:44,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:44,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:44,849 INFO L87 Difference]: Start difference. First operand 3693 states and 6499 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:46,229 INFO L93 Difference]: Finished difference Result 5866 states and 10103 transitions. [2024-10-14 04:23:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:46,238 INFO L225 Difference]: With dead ends: 5866 [2024-10-14 04:23:46,238 INFO L226 Difference]: Without dead ends: 4311 [2024-10-14 04:23:46,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:46,242 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 5111 mSDsluCounter, 12468 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5130 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:46,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5130 Valid, 16671 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:23:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2024-10-14 04:23:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 3693. [2024-10-14 04:23:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3550 states have (on average 1.7659154929577465) internal successors, (6269), 3557 states have internal predecessors, (6269), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-10-14 04:23:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 6494 transitions. [2024-10-14 04:23:46,336 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 6494 transitions. Word has length 152 [2024-10-14 04:23:46,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:46,338 INFO L471 AbstractCegarLoop]: Abstraction has 3693 states and 6494 transitions. [2024-10-14 04:23:46,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 6494 transitions. [2024-10-14 04:23:46,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:46,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:46,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:46,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:23:46,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1131626249, now seen corresponding path program 1 times [2024-10-14 04:23:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:46,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321666199] [2024-10-14 04:23:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:46,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:46,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321666199] [2024-10-14 04:23:46,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321666199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:46,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:46,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:46,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035202215] [2024-10-14 04:23:46,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:46,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:46,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:46,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:46,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:46,545 INFO L87 Difference]: Start difference. First operand 3693 states and 6494 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:49,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:49,241 INFO L93 Difference]: Finished difference Result 7494 states and 12734 transitions. [2024-10-14 04:23:49,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:49,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:49,255 INFO L225 Difference]: With dead ends: 7494 [2024-10-14 04:23:49,256 INFO L226 Difference]: Without dead ends: 5939 [2024-10-14 04:23:49,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:49,262 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5339 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5357 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:49,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5357 Valid, 21749 Invalid, 3407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 04:23:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-10-14 04:23:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 4934. [2024-10-14 04:23:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4934 states, 4683 states have (on average 1.7258167841127483) internal successors, (8082), 4694 states have internal predecessors, (8082), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-10-14 04:23:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 8489 transitions. [2024-10-14 04:23:49,491 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 8489 transitions. Word has length 152 [2024-10-14 04:23:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:49,491 INFO L471 AbstractCegarLoop]: Abstraction has 4934 states and 8489 transitions. [2024-10-14 04:23:49,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 8489 transitions. [2024-10-14 04:23:49,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:49,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:49,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:49,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:23:49,497 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:49,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2078664135, now seen corresponding path program 1 times [2024-10-14 04:23:49,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:49,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264882455] [2024-10-14 04:23:49,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:49,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:49,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264882455] [2024-10-14 04:23:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264882455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:49,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:49,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:49,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699012071] [2024-10-14 04:23:49,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:49,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:49,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:49,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:49,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:49,686 INFO L87 Difference]: Start difference. First operand 4934 states and 8489 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:52,340 INFO L93 Difference]: Finished difference Result 11959 states and 20005 transitions. [2024-10-14 04:23:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:52,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:52,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:52,363 INFO L225 Difference]: With dead ends: 11959 [2024-10-14 04:23:52,363 INFO L226 Difference]: Without dead ends: 9163 [2024-10-14 04:23:52,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:52,373 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5338 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5356 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:52,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5356 Valid, 21749 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 04:23:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9163 states. [2024-10-14 04:23:52,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9163 to 7413. [2024-10-14 04:23:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 6946 states have (on average 1.6841347538151454) internal successors, (11698), 6965 states have internal predecessors, (11698), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-10-14 04:23:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 12487 transitions. [2024-10-14 04:23:52,711 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 12487 transitions. Word has length 152 [2024-10-14 04:23:52,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:52,711 INFO L471 AbstractCegarLoop]: Abstraction has 7413 states and 12487 transitions. [2024-10-14 04:23:52,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 12487 transitions. [2024-10-14 04:23:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:52,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:52,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:52,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:23:52,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:52,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1354469559, now seen corresponding path program 1 times [2024-10-14 04:23:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048455863] [2024-10-14 04:23:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:52,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:52,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048455863] [2024-10-14 04:23:52,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048455863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:52,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:52,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:52,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134713020] [2024-10-14 04:23:52,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:52,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:52,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:52,898 INFO L87 Difference]: Start difference. First operand 7413 states and 12487 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:55,849 INFO L93 Difference]: Finished difference Result 20880 states and 34589 transitions. [2024-10-14 04:23:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:55,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:55,891 INFO L225 Difference]: With dead ends: 20880 [2024-10-14 04:23:55,892 INFO L226 Difference]: Without dead ends: 15605 [2024-10-14 04:23:55,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:55,908 INFO L432 NwaCegarLoop]: 4410 mSDtfsCounter, 5337 mSDsluCounter, 17339 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5355 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:55,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5355 Valid, 21749 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 04:23:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15605 states. [2024-10-14 04:23:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15605 to 12386. [2024-10-14 04:23:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12386 states, 11487 states have (on average 1.649865064855924) internal successors, (18952), 11522 states have internal predecessors, (18952), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-14 04:23:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12386 states to 12386 states and 20559 transitions. [2024-10-14 04:23:56,528 INFO L78 Accepts]: Start accepts. Automaton has 12386 states and 20559 transitions. Word has length 152 [2024-10-14 04:23:56,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:56,529 INFO L471 AbstractCegarLoop]: Abstraction has 12386 states and 20559 transitions. [2024-10-14 04:23:56,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:56,529 INFO L276 IsEmpty]: Start isEmpty. Operand 12386 states and 20559 transitions. [2024-10-14 04:23:56,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:56,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:56,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:56,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:23:56,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:56,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:56,536 INFO L85 PathProgramCache]: Analyzing trace with hash 890088839, now seen corresponding path program 1 times [2024-10-14 04:23:56,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:56,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593234150] [2024-10-14 04:23:56,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:56,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:56,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593234150] [2024-10-14 04:23:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593234150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:56,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779681284] [2024-10-14 04:23:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:56,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:56,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:56,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:56,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:56,700 INFO L87 Difference]: Start difference. First operand 12386 states and 20559 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:58,542 INFO L93 Difference]: Finished difference Result 26016 states and 43196 transitions. [2024-10-14 04:23:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:58,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:23:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:58,584 INFO L225 Difference]: With dead ends: 26016 [2024-10-14 04:23:58,584 INFO L226 Difference]: Without dead ends: 15768 [2024-10-14 04:23:58,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:58,609 INFO L432 NwaCegarLoop]: 4203 mSDtfsCounter, 4970 mSDsluCounter, 16586 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4989 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:58,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4989 Valid, 20789 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 04:23:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15768 states. [2024-10-14 04:23:59,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15768 to 12386. [2024-10-14 04:23:59,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12386 states, 11487 states have (on average 1.646992252111082) internal successors, (18919), 11522 states have internal predecessors, (18919), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-10-14 04:23:59,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12386 states to 12386 states and 20526 transitions. [2024-10-14 04:23:59,125 INFO L78 Accepts]: Start accepts. Automaton has 12386 states and 20526 transitions. Word has length 152 [2024-10-14 04:23:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:59,126 INFO L471 AbstractCegarLoop]: Abstraction has 12386 states and 20526 transitions. [2024-10-14 04:23:59,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:23:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 12386 states and 20526 transitions. [2024-10-14 04:23:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:23:59,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:59,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:23:59,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:23:59,133 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:59,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1378135945, now seen corresponding path program 1 times [2024-10-14 04:23:59,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:59,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88275023] [2024-10-14 04:23:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:59,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:23:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:23:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:23:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:23:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:59,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:59,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88275023] [2024-10-14 04:23:59,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88275023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:59,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:59,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:59,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41115438] [2024-10-14 04:23:59,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:59,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:59,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:59,305 INFO L87 Difference]: Start difference. First operand 12386 states and 20526 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:03,254 INFO L93 Difference]: Finished difference Result 43169 states and 70985 transitions. [2024-10-14 04:24:03,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:24:03,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:24:03,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:03,338 INFO L225 Difference]: With dead ends: 43169 [2024-10-14 04:24:03,338 INFO L226 Difference]: Without dead ends: 32921 [2024-10-14 04:24:03,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:24:03,366 INFO L432 NwaCegarLoop]: 4408 mSDtfsCounter, 5728 mSDsluCounter, 17334 mSDsCounter, 0 mSdLazyCounter, 3268 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5758 SdHoareTripleChecker+Valid, 21742 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:03,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5758 Valid, 21742 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3268 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 04:24:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32921 states. [2024-10-14 04:24:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32921 to 22332. [2024-10-14 04:24:04,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22332 states, 20601 states have (on average 1.6233677976797243) internal successors, (33443), 20668 states have internal predecessors, (33443), 1275 states have call successors, (1275), 391 states have call predecessors, (1275), 454 states have return successors, (2066), 1336 states have call predecessors, (2066), 1273 states have call successors, (2066) [2024-10-14 04:24:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22332 states to 22332 states and 36784 transitions. [2024-10-14 04:24:04,556 INFO L78 Accepts]: Start accepts. Automaton has 22332 states and 36784 transitions. Word has length 152 [2024-10-14 04:24:04,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:04,557 INFO L471 AbstractCegarLoop]: Abstraction has 22332 states and 36784 transitions. [2024-10-14 04:24:04,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 22332 states and 36784 transitions. [2024-10-14 04:24:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:24:04,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:04,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:04,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:24:04,572 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:04,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 285500743, now seen corresponding path program 1 times [2024-10-14 04:24:04,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772270208] [2024-10-14 04:24:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:24:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:24:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:24:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:24:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:24:04,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:04,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772270208] [2024-10-14 04:24:04,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772270208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:04,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:04,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:04,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292761056] [2024-10-14 04:24:04,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:04,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:04,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:04,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:04,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:04,756 INFO L87 Difference]: Start difference. First operand 22332 states and 36784 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:10,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:10,357 INFO L93 Difference]: Finished difference Result 82441 states and 135945 transitions. [2024-10-14 04:24:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:24:10,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:24:10,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:10,531 INFO L225 Difference]: With dead ends: 82441 [2024-10-14 04:24:10,531 INFO L226 Difference]: Without dead ends: 62247 [2024-10-14 04:24:10,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:24:10,580 INFO L432 NwaCegarLoop]: 4407 mSDtfsCounter, 5425 mSDsluCounter, 17331 mSDsCounter, 0 mSdLazyCounter, 3870 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5442 SdHoareTripleChecker+Valid, 21738 SdHoareTripleChecker+Invalid, 3937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:10,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5442 Valid, 21738 Invalid, 3937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3870 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 04:24:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62247 states. [2024-10-14 04:24:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62247 to 41581. [2024-10-14 04:24:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41581 states, 38218 states have (on average 1.606494322047203) internal successors, (61397), 38349 states have internal predecessors, (61397), 2459 states have call successors, (2459), 775 states have call predecessors, (2459), 902 states have return successors, (4772), 2584 states have call predecessors, (4772), 2457 states have call successors, (4772) [2024-10-14 04:24:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41581 states to 41581 states and 68628 transitions. [2024-10-14 04:24:13,134 INFO L78 Accepts]: Start accepts. Automaton has 41581 states and 68628 transitions. Word has length 152 [2024-10-14 04:24:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:13,134 INFO L471 AbstractCegarLoop]: Abstraction has 41581 states and 68628 transitions. [2024-10-14 04:24:13,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 41581 states and 68628 transitions. [2024-10-14 04:24:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:24:13,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:13,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:13,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:24:13,154 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:13,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash -996671543, now seen corresponding path program 1 times [2024-10-14 04:24:13,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118115257] [2024-10-14 04:24:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:24:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:24:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:24:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:24:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:24:13,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:13,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118115257] [2024-10-14 04:24:13,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118115257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:13,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:13,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:13,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241300253] [2024-10-14 04:24:13,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:13,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:13,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:13,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:13,506 INFO L87 Difference]: Start difference. First operand 41581 states and 68628 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:24:22,247 INFO L93 Difference]: Finished difference Result 156502 states and 260123 transitions. [2024-10-14 04:24:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:24:22,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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 152 [2024-10-14 04:24:22,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:24:22,620 INFO L225 Difference]: With dead ends: 156502 [2024-10-14 04:24:22,620 INFO L226 Difference]: Without dead ends: 117059 [2024-10-14 04:24:22,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:24:22,808 INFO L432 NwaCegarLoop]: 4408 mSDtfsCounter, 5623 mSDsluCounter, 17334 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 21742 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:24:22,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5653 Valid, 21742 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3223 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 04:24:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117059 states. [2024-10-14 04:24:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117059 to 80847. [2024-10-14 04:24:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80847 states, 74284 states have (on average 1.5998196112217975) internal successors, (118841), 74543 states have internal predecessors, (118841), 4763 states have call successors, (4763), 1543 states have call predecessors, (4763), 1798 states have return successors, (11578), 5016 states have call predecessors, (11578), 4761 states have call successors, (11578) [2024-10-14 04:24:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80847 states to 80847 states and 135182 transitions. [2024-10-14 04:24:28,358 INFO L78 Accepts]: Start accepts. Automaton has 80847 states and 135182 transitions. Word has length 152 [2024-10-14 04:24:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:24:28,359 INFO L471 AbstractCegarLoop]: Abstraction has 80847 states and 135182 transitions. [2024-10-14 04:24:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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) [2024-10-14 04:24:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 80847 states and 135182 transitions. [2024-10-14 04:24:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 04:24:28,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:24:28,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 04:24:28,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:24:28,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:24:28,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:24:28,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1576293067, now seen corresponding path program 1 times [2024-10-14 04:24:28,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:24:28,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80572443] [2024-10-14 04:24:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:24:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:24:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:24:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 04:24:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 04:24:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 04:24:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 04:24:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:24:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:24:28,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:24:28,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80572443] [2024-10-14 04:24:28,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80572443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:24:28,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:24:28,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:24:28,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801979259] [2024-10-14 04:24:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:24:28,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:24:28,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:24:28,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:24:28,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:24:28,819 INFO L87 Difference]: Start difference. First operand 80847 states and 135182 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 5 states have internal predecessors, (141), 2 states have call successors, (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)