./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i --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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i -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 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:26:25,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:26:25,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:26:25,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:26:25,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:26:25,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:26:25,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:26:25,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:26:25,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:26:25,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:26:25,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:26:25,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:26:25,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:26:25,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:26:25,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:26:25,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:26:25,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:26:25,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:26:25,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:26:25,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:26:25,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:26:25,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:26:25,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:26:25,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:26:25,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:26:25,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:26:25,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:26:25,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:26:25,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:26:25,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:26:25,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:26:25,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:26:25,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:26:25,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:26:25,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:26:25,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:26:25,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:26:25,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:26:25,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:26:25,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:26:25,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:26:25,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:26:25,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-10-14 13:26:25,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:26:25,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:26:25,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:26:25,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:26:25,770 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:26:25,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-10-14 13:26:27,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:26:27,433 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:26:27,434 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-10-14 13:26:27,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b9909a7/27f24046130043499c250e0ca0b6a73a/FLAGce6fc602e [2024-10-14 13:26:27,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b9909a7/27f24046130043499c250e0ca0b6a73a [2024-10-14 13:26:27,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:26:27,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:26:27,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:26:27,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:26:27,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:26:27,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:26:27" (1/1) ... [2024-10-14 13:26:27,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a14eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:27, skipping insertion in model container [2024-10-14 13:26:27,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:26:27" (1/1) ... [2024-10-14 13:26:27,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:26:27,972 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-10-14 13:26:28,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:26:28,063 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:26:28,078 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-10-14 13:26:28,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:26:28,183 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:26:28,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28 WrapperNode [2024-10-14 13:26:28,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:26:28,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:26:28,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:26:28,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:26:28,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,273 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 575 [2024-10-14 13:26:28,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:26:28,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:26:28,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:26:28,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:26:28,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,295 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,349 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-10-14 13:26:28,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:26:28,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:26:28,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:26:28,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:26:28,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (1/1) ... [2024-10-14 13:26:28,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:26:28,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:26:28,472 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 13:26:28,477 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 13:26:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:26:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 13:26:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 13:26:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-14 13:26:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-14 13:26:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-14 13:26:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:26:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:26:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 13:26:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 13:26:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 13:26:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 13:26:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 13:26:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-14 13:26:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-14 13:26:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-14 13:26:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-14 13:26:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-14 13:26:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-14 13:26:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-14 13:26:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-14 13:26:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:26:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:26:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:26:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:26:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 13:26:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 13:26:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 13:26:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:26:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:26:28,692 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:26:28,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:26:29,268 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-10-14 13:26:29,269 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:26:29,308 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:26:29,308 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:26:29,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:26:29 BoogieIcfgContainer [2024-10-14 13:26:29,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:26:29,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:26:29,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:26:29,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:26:29,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:26:27" (1/3) ... [2024-10-14 13:26:29,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9e8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:26:29, skipping insertion in model container [2024-10-14 13:26:29,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:26:28" (2/3) ... [2024-10-14 13:26:29,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9e8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:26:29, skipping insertion in model container [2024-10-14 13:26:29,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:26:29" (3/3) ... [2024-10-14 13:26:29,321 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-10-14 13:26:29,340 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:26:29,341 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:26:29,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:26:29,407 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;@1d9cf77a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:26:29,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:26:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 98 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:26:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 13:26:29,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:29,432 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:29,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:29,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1206251126, now seen corresponding path program 1 times [2024-10-14 13:26:29,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:29,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365241374] [2024-10-14 13:26:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:29,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:29,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365241374] [2024-10-14 13:26:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365241374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:29,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:26:29,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872197414] [2024-10-14 13:26:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:29,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:26:29,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:26:29,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:26:29,926 INFO L87 Difference]: Start difference. First operand has 119 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 98 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:26:29,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:29,974 INFO L93 Difference]: Finished difference Result 235 states and 377 transitions. [2024-10-14 13:26:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:26:29,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-10-14 13:26:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:29,984 INFO L225 Difference]: With dead ends: 235 [2024-10-14 13:26:29,984 INFO L226 Difference]: Without dead ends: 117 [2024-10-14 13:26:29,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:26:29,991 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:29,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-14 13:26:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-10-14 13:26:30,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 96 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:26:30,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 175 transitions. [2024-10-14 13:26:30,037 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 175 transitions. Word has length 146 [2024-10-14 13:26:30,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:30,037 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 175 transitions. [2024-10-14 13:26:30,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:26:30,038 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 175 transitions. [2024-10-14 13:26:30,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 13:26:30,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:30,041 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:30,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:26:30,042 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:30,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1042025616, now seen corresponding path program 1 times [2024-10-14 13:26:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:30,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206685613] [2024-10-14 13:26:30,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:30,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:30,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:30,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206685613] [2024-10-14 13:26:30,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206685613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:30,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:30,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:26:30,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046159604] [2024-10-14 13:26:30,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:30,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:26:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:30,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:26:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:30,403 INFO L87 Difference]: Start difference. First operand 117 states and 175 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:30,454 INFO L93 Difference]: Finished difference Result 234 states and 351 transitions. [2024-10-14 13:26:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:26:30,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-10-14 13:26:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:30,457 INFO L225 Difference]: With dead ends: 234 [2024-10-14 13:26:30,457 INFO L226 Difference]: Without dead ends: 118 [2024-10-14 13:26:30,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:30,459 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:30,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-14 13:26:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-14 13:26:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.422680412371134) internal successors, (138), 97 states have internal predecessors, (138), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:26:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 176 transitions. [2024-10-14 13:26:30,472 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 176 transitions. Word has length 146 [2024-10-14 13:26:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:30,473 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 176 transitions. [2024-10-14 13:26:30,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 176 transitions. [2024-10-14 13:26:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 13:26:30,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:30,476 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:30,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:26:30,477 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:30,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash -646918126, now seen corresponding path program 1 times [2024-10-14 13:26:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56010811] [2024-10-14 13:26:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:31,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56010811] [2024-10-14 13:26:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56010811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:32,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:26:32,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456022779] [2024-10-14 13:26:32,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:32,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:26:32,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:32,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:26:32,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:26:32,006 INFO L87 Difference]: Start difference. First operand 118 states and 176 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:32,416 INFO L93 Difference]: Finished difference Result 324 states and 482 transitions. [2024-10-14 13:26:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:26:32,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-10-14 13:26:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:32,419 INFO L225 Difference]: With dead ends: 324 [2024-10-14 13:26:32,419 INFO L226 Difference]: Without dead ends: 207 [2024-10-14 13:26:32,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:26:32,421 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 124 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:32,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1310 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:26:32,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-14 13:26:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-10-14 13:26:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 173 states have (on average 1.4335260115606936) internal successors, (248), 174 states have internal predecessors, (248), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:26:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 304 transitions. [2024-10-14 13:26:32,440 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 304 transitions. Word has length 146 [2024-10-14 13:26:32,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:32,441 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 304 transitions. [2024-10-14 13:26:32,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 304 transitions. [2024-10-14 13:26:32,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 13:26:32,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:32,444 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:32,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:26:32,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:32,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:32,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1818106165, now seen corresponding path program 1 times [2024-10-14 13:26:32,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:32,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542275299] [2024-10-14 13:26:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:32,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:32,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542275299] [2024-10-14 13:26:32,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542275299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:32,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:32,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:26:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719941487] [2024-10-14 13:26:32,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:32,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:26:32,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:32,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:26:32,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:32,577 INFO L87 Difference]: Start difference. First operand 204 states and 304 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:32,613 INFO L93 Difference]: Finished difference Result 408 states and 609 transitions. [2024-10-14 13:26:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:26:32,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-14 13:26:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:32,617 INFO L225 Difference]: With dead ends: 408 [2024-10-14 13:26:32,617 INFO L226 Difference]: Without dead ends: 205 [2024-10-14 13:26:32,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:32,619 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:32,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-14 13:26:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-14 13:26:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 174 states have (on average 1.4310344827586208) internal successors, (249), 175 states have internal predecessors, (249), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:26:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 305 transitions. [2024-10-14 13:26:32,634 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 305 transitions. Word has length 147 [2024-10-14 13:26:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:32,635 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 305 transitions. [2024-10-14 13:26:32,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 305 transitions. [2024-10-14 13:26:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 13:26:32,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:32,638 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:32,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:26:32,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:32,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash 272357603, now seen corresponding path program 1 times [2024-10-14 13:26:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:32,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120971112] [2024-10-14 13:26:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:32,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120971112] [2024-10-14 13:26:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120971112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:32,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:26:32,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590620864] [2024-10-14 13:26:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:32,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:26:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:26:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:32,829 INFO L87 Difference]: Start difference. First operand 205 states and 305 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:32,864 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2024-10-14 13:26:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:26:32,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-10-14 13:26:32,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:32,867 INFO L225 Difference]: With dead ends: 411 [2024-10-14 13:26:32,869 INFO L226 Difference]: Without dead ends: 207 [2024-10-14 13:26:32,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:32,871 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:32,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-14 13:26:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-10-14 13:26:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.4261363636363635) internal successors, (251), 177 states have internal predecessors, (251), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:26:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 307 transitions. [2024-10-14 13:26:32,900 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 307 transitions. Word has length 147 [2024-10-14 13:26:32,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:32,904 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 307 transitions. [2024-10-14 13:26:32,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:32,904 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 307 transitions. [2024-10-14 13:26:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:32,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:32,909 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:32,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:26:32,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:32,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1818126509, now seen corresponding path program 1 times [2024-10-14 13:26:32,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658397913] [2024-10-14 13:26:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:33,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658397913] [2024-10-14 13:26:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658397913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:33,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:33,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:26:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504488045] [2024-10-14 13:26:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:33,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:26:33,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:33,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:26:33,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:26:33,232 INFO L87 Difference]: Start difference. First operand 207 states and 307 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:33,283 INFO L93 Difference]: Finished difference Result 419 states and 621 transitions. [2024-10-14 13:26:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:26:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-14 13:26:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:33,288 INFO L225 Difference]: With dead ends: 419 [2024-10-14 13:26:33,288 INFO L226 Difference]: Without dead ends: 213 [2024-10-14 13:26:33,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:26:33,289 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:33,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 661 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-14 13:26:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-10-14 13:26:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 182 states have (on average 1.4120879120879122) internal successors, (257), 183 states have internal predecessors, (257), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:26:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 313 transitions. [2024-10-14 13:26:33,301 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 313 transitions. Word has length 148 [2024-10-14 13:26:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:33,301 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 313 transitions. [2024-10-14 13:26:33,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 313 transitions. [2024-10-14 13:26:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:33,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:33,303 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:33,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:26:33,304 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:33,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:33,304 INFO L85 PathProgramCache]: Analyzing trace with hash 127700088, now seen corresponding path program 1 times [2024-10-14 13:26:33,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:33,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834823229] [2024-10-14 13:26:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:33,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:35,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:35,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834823229] [2024-10-14 13:26:35,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834823229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:35,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:35,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:26:35,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597358399] [2024-10-14 13:26:35,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:35,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:26:35,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:35,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:26:35,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:26:35,162 INFO L87 Difference]: Start difference. First operand 213 states and 313 transitions. Second operand has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-14 13:26:35,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:35,804 INFO L93 Difference]: Finished difference Result 547 states and 801 transitions. [2024-10-14 13:26:35,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:26:35,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-14 13:26:35,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:35,807 INFO L225 Difference]: With dead ends: 547 [2024-10-14 13:26:35,807 INFO L226 Difference]: Without dead ends: 335 [2024-10-14 13:26:35,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:26:35,809 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 116 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:35,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 981 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:26:35,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-14 13:26:35,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 237. [2024-10-14 13:26:35,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 206 states have (on average 1.4320388349514563) internal successors, (295), 207 states have internal predecessors, (295), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:26:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 351 transitions. [2024-10-14 13:26:35,832 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 351 transitions. Word has length 148 [2024-10-14 13:26:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:35,834 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 351 transitions. [2024-10-14 13:26:35,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.0) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-14 13:26:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 351 transitions. [2024-10-14 13:26:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:35,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:35,836 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:35,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:26:35,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:35,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -883417162, now seen corresponding path program 1 times [2024-10-14 13:26:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:35,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550604853] [2024-10-14 13:26:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:35,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550604853] [2024-10-14 13:26:36,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550604853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:36,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:36,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:26:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684902012] [2024-10-14 13:26:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:36,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:26:36,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:36,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:26:36,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:26:36,970 INFO L87 Difference]: Start difference. First operand 237 states and 351 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:38,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:38,224 INFO L93 Difference]: Finished difference Result 1207 states and 1799 transitions. [2024-10-14 13:26:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:26:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-14 13:26:38,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:38,230 INFO L225 Difference]: With dead ends: 1207 [2024-10-14 13:26:38,230 INFO L226 Difference]: Without dead ends: 971 [2024-10-14 13:26:38,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:26:38,232 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 460 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:38,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1493 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:26:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-10-14 13:26:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 607. [2024-10-14 13:26:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 546 states have (on average 1.47985347985348) internal successors, (808), 548 states have internal predecessors, (808), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-14 13:26:38,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 920 transitions. [2024-10-14 13:26:38,277 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 920 transitions. Word has length 148 [2024-10-14 13:26:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:38,277 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 920 transitions. [2024-10-14 13:26:38,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 920 transitions. [2024-10-14 13:26:38,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:38,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:38,280 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:38,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:26:38,280 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:38,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:38,281 INFO L85 PathProgramCache]: Analyzing trace with hash -625251724, now seen corresponding path program 1 times [2024-10-14 13:26:38,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:38,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234849745] [2024-10-14 13:26:38,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:38,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:39,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:39,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234849745] [2024-10-14 13:26:39,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234849745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:39,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:39,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:26:39,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744420406] [2024-10-14 13:26:39,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:39,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:26:39,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:26:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:26:39,818 INFO L87 Difference]: Start difference. First operand 607 states and 920 transitions. Second operand has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-14 13:26:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:41,365 INFO L93 Difference]: Finished difference Result 1631 states and 2434 transitions. [2024-10-14 13:26:41,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 13:26:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-10-14 13:26:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:41,372 INFO L225 Difference]: With dead ends: 1631 [2024-10-14 13:26:41,373 INFO L226 Difference]: Without dead ends: 1025 [2024-10-14 13:26:41,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2024-10-14 13:26:41,376 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1165 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:41,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1563 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 13:26:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2024-10-14 13:26:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 684. [2024-10-14 13:26:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 608 states have (on average 1.4588815789473684) internal successors, (887), 611 states have internal predecessors, (887), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1025 transitions. [2024-10-14 13:26:41,432 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1025 transitions. Word has length 148 [2024-10-14 13:26:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:41,432 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1025 transitions. [2024-10-14 13:26:41,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.6) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-10-14 13:26:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1025 transitions. [2024-10-14 13:26:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:41,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:41,435 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:41,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:26:41,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:41,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:41,436 INFO L85 PathProgramCache]: Analyzing trace with hash 242514460, now seen corresponding path program 1 times [2024-10-14 13:26:41,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398717991] [2024-10-14 13:26:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:41,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:41,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398717991] [2024-10-14 13:26:41,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398717991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:41,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:41,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:26:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937721266] [2024-10-14 13:26:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:41,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:26:41,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:26:41,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:26:41,589 INFO L87 Difference]: Start difference. First operand 684 states and 1025 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:41,712 INFO L93 Difference]: Finished difference Result 1528 states and 2288 transitions. [2024-10-14 13:26:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:26:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-14 13:26:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:41,719 INFO L225 Difference]: With dead ends: 1528 [2024-10-14 13:26:41,720 INFO L226 Difference]: Without dead ends: 845 [2024-10-14 13:26:41,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:26:41,722 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 75 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:41,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 624 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:26:41,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-14 13:26:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 725. [2024-10-14 13:26:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 649 states have (on average 1.4591679506933743) internal successors, (947), 652 states have internal predecessors, (947), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1085 transitions. [2024-10-14 13:26:41,776 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1085 transitions. Word has length 148 [2024-10-14 13:26:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:41,777 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 1085 transitions. [2024-10-14 13:26:41,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1085 transitions. [2024-10-14 13:26:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:41,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:41,781 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:41,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:26:41,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:41,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1765035028, now seen corresponding path program 1 times [2024-10-14 13:26:41,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180013693] [2024-10-14 13:26:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:41,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:43,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:43,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180013693] [2024-10-14 13:26:43,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180013693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:43,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:43,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:26:43,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419504124] [2024-10-14 13:26:43,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:43,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:26:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:26:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:26:43,397 INFO L87 Difference]: Start difference. First operand 725 states and 1085 transitions. Second operand has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:44,210 INFO L93 Difference]: Finished difference Result 1688 states and 2519 transitions. [2024-10-14 13:26:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:26:44,211 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-14 13:26:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:44,216 INFO L225 Difference]: With dead ends: 1688 [2024-10-14 13:26:44,217 INFO L226 Difference]: Without dead ends: 964 [2024-10-14 13:26:44,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:26:44,220 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 117 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:44,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1803 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:26:44,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-10-14 13:26:44,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 769. [2024-10-14 13:26:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 693 states have (on average 1.468975468975469) internal successors, (1018), 696 states have internal predecessors, (1018), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:44,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1156 transitions. [2024-10-14 13:26:44,277 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1156 transitions. Word has length 148 [2024-10-14 13:26:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:44,278 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1156 transitions. [2024-10-14 13:26:44,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:44,278 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1156 transitions. [2024-10-14 13:26:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:44,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:44,281 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:44,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:26:44,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:44,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1506869590, now seen corresponding path program 1 times [2024-10-14 13:26:44,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:44,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821237692] [2024-10-14 13:26:44,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:44,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:45,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821237692] [2024-10-14 13:26:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821237692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:45,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:45,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:26:45,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414793254] [2024-10-14 13:26:45,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:45,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:26:45,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:45,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:26:45,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:26:45,824 INFO L87 Difference]: Start difference. First operand 769 states and 1156 transitions. Second operand has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:46,825 INFO L93 Difference]: Finished difference Result 1784 states and 2678 transitions. [2024-10-14 13:26:46,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:26:46,826 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-14 13:26:46,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:46,830 INFO L225 Difference]: With dead ends: 1784 [2024-10-14 13:26:46,831 INFO L226 Difference]: Without dead ends: 1016 [2024-10-14 13:26:46,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:26:46,833 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 115 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:46,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1997 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:26:46,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-10-14 13:26:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 878. [2024-10-14 13:26:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 802 states have (on average 1.4812967581047383) internal successors, (1188), 805 states have internal predecessors, (1188), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1326 transitions. [2024-10-14 13:26:46,892 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1326 transitions. Word has length 148 [2024-10-14 13:26:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:46,893 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1326 transitions. [2024-10-14 13:26:46,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.0) internal successors, (56), 11 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1326 transitions. [2024-10-14 13:26:46,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:46,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:46,895 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:46,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:26:46,896 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:46,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:46,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2050928122, now seen corresponding path program 1 times [2024-10-14 13:26:46,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:46,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270531622] [2024-10-14 13:26:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:46,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270531622] [2024-10-14 13:26:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270531622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:48,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:48,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:26:48,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756109714] [2024-10-14 13:26:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:48,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:26:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:48,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:26:48,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:26:48,184 INFO L87 Difference]: Start difference. First operand 878 states and 1326 transitions. Second operand has 12 states, 10 states have (on average 5.6) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:49,672 INFO L93 Difference]: Finished difference Result 2160 states and 3230 transitions. [2024-10-14 13:26:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:26:49,672 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-14 13:26:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:49,678 INFO L225 Difference]: With dead ends: 2160 [2024-10-14 13:26:49,678 INFO L226 Difference]: Without dead ends: 1283 [2024-10-14 13:26:49,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-10-14 13:26:49,682 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 708 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:49,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 2253 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 13:26:49,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2024-10-14 13:26:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 883. [2024-10-14 13:26:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 807 states have (on average 1.4770755885997522) internal successors, (1192), 810 states have internal predecessors, (1192), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1330 transitions. [2024-10-14 13:26:49,750 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1330 transitions. Word has length 148 [2024-10-14 13:26:49,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:49,750 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1330 transitions. [2024-10-14 13:26:49,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1330 transitions. [2024-10-14 13:26:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:49,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:49,752 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:49,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:26:49,754 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:49,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1297976310, now seen corresponding path program 1 times [2024-10-14 13:26:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:49,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062661396] [2024-10-14 13:26:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:49,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:50,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:50,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062661396] [2024-10-14 13:26:50,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062661396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:50,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:50,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:26:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402181029] [2024-10-14 13:26:50,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:50,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:26:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:26:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:26:50,823 INFO L87 Difference]: Start difference. First operand 883 states and 1330 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:51,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:51,534 INFO L93 Difference]: Finished difference Result 1961 states and 2937 transitions. [2024-10-14 13:26:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:26:51,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-14 13:26:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:51,542 INFO L225 Difference]: With dead ends: 1961 [2024-10-14 13:26:51,543 INFO L226 Difference]: Without dead ends: 1079 [2024-10-14 13:26:51,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:26:51,545 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 116 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:51,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1316 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:26:51,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-10-14 13:26:51,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 876. [2024-10-14 13:26:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 800 states have (on average 1.4775) internal successors, (1182), 803 states have internal predecessors, (1182), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1320 transitions. [2024-10-14 13:26:51,621 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1320 transitions. Word has length 148 [2024-10-14 13:26:51,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:51,621 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1320 transitions. [2024-10-14 13:26:51,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1320 transitions. [2024-10-14 13:26:51,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:51,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:51,624 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:51,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:26:51,624 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:51,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:51,625 INFO L85 PathProgramCache]: Analyzing trace with hash 416358444, now seen corresponding path program 1 times [2024-10-14 13:26:51,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:51,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675814185] [2024-10-14 13:26:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:51,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:52,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:52,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675814185] [2024-10-14 13:26:52,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675814185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:52,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:52,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:26:52,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611254688] [2024-10-14 13:26:52,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:52,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:26:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:52,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:26:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:26:52,740 INFO L87 Difference]: Start difference. First operand 876 states and 1320 transitions. Second operand has 12 states, 8 states have (on average 7.0) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:53,759 INFO L93 Difference]: Finished difference Result 1994 states and 2998 transitions. [2024-10-14 13:26:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 13:26:53,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 7.0) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-10-14 13:26:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:53,765 INFO L225 Difference]: With dead ends: 1994 [2024-10-14 13:26:53,765 INFO L226 Difference]: Without dead ends: 1119 [2024-10-14 13:26:53,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:26:53,770 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 114 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:53,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 2248 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:26:53,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-10-14 13:26:53,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 876. [2024-10-14 13:26:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 800 states have (on average 1.4775) internal successors, (1182), 803 states have internal predecessors, (1182), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1320 transitions. [2024-10-14 13:26:53,838 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1320 transitions. Word has length 148 [2024-10-14 13:26:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:53,838 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1320 transitions. [2024-10-14 13:26:53,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 7.0) internal successors, (56), 12 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:26:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1320 transitions. [2024-10-14 13:26:53,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:53,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:53,840 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:53,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:26:53,841 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:53,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash 556907054, now seen corresponding path program 1 times [2024-10-14 13:26:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:53,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597149227] [2024-10-14 13:26:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:54,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597149227] [2024-10-14 13:26:54,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597149227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:54,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:54,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:26:54,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060109222] [2024-10-14 13:26:54,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:54,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:26:54,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:54,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:26:54,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:26:54,801 INFO L87 Difference]: Start difference. First operand 876 states and 1320 transitions. Second operand has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:55,503 INFO L93 Difference]: Finished difference Result 1994 states and 2994 transitions. [2024-10-14 13:26:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:26:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-10-14 13:26:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:55,509 INFO L225 Difference]: With dead ends: 1994 [2024-10-14 13:26:55,509 INFO L226 Difference]: Without dead ends: 1119 [2024-10-14 13:26:55,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:26:55,512 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 115 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:55,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1645 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:26:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2024-10-14 13:26:55,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 765. [2024-10-14 13:26:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 689 states have (on average 1.4600870827285921) internal successors, (1006), 692 states have internal predecessors, (1006), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1144 transitions. [2024-10-14 13:26:55,610 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1144 transitions. Word has length 148 [2024-10-14 13:26:55,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:55,611 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1144 transitions. [2024-10-14 13:26:55,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.0) internal successors, (56), 9 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:26:55,611 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1144 transitions. [2024-10-14 13:26:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:26:55,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:55,614 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:55,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:26:55,614 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:55,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1424879416, now seen corresponding path program 1 times [2024-10-14 13:26:55,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:55,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287518981] [2024-10-14 13:26:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:55,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:55,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:55,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287518981] [2024-10-14 13:26:55,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287518981] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:55,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:55,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:26:55,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797405797] [2024-10-14 13:26:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:55,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:26:55,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:26:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:26:55,782 INFO L87 Difference]: Start difference. First operand 765 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:55,916 INFO L93 Difference]: Finished difference Result 1604 states and 2395 transitions. [2024-10-14 13:26:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:26:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-14 13:26:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:55,921 INFO L225 Difference]: With dead ends: 1604 [2024-10-14 13:26:55,922 INFO L226 Difference]: Without dead ends: 840 [2024-10-14 13:26:55,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:26:55,924 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 89 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:55,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 778 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:26:55,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-10-14 13:26:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 760. [2024-10-14 13:26:55,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 684 states have (on average 1.4517543859649122) internal successors, (993), 687 states have internal predecessors, (993), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1131 transitions. [2024-10-14 13:26:55,986 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1131 transitions. Word has length 148 [2024-10-14 13:26:55,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:55,986 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1131 transitions. [2024-10-14 13:26:55,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1131 transitions. [2024-10-14 13:26:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 13:26:55,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:55,989 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:55,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:26:55,989 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:55,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:55,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2113501635, now seen corresponding path program 1 times [2024-10-14 13:26:55,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:55,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153152547] [2024-10-14 13:26:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:55,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:56,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153152547] [2024-10-14 13:26:56,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153152547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:56,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:56,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:26:56,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565178418] [2024-10-14 13:26:56,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:56,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:26:56,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:56,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:26:56,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:56,071 INFO L87 Difference]: Start difference. First operand 760 states and 1131 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:56,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:56,145 INFO L93 Difference]: Finished difference Result 1501 states and 2233 transitions. [2024-10-14 13:26:56,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:26:56,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-10-14 13:26:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:56,150 INFO L225 Difference]: With dead ends: 1501 [2024-10-14 13:26:56,150 INFO L226 Difference]: Without dead ends: 742 [2024-10-14 13:26:56,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:56,152 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:56,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:56,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-10-14 13:26:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 660. [2024-10-14 13:26:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 584 states have (on average 1.4263698630136987) internal successors, (833), 587 states have internal predecessors, (833), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 971 transitions. [2024-10-14 13:26:56,224 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 971 transitions. Word has length 149 [2024-10-14 13:26:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:56,224 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 971 transitions. [2024-10-14 13:26:56,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 971 transitions. [2024-10-14 13:26:56,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 13:26:56,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:56,226 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:56,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:26:56,228 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:56,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:56,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1505790743, now seen corresponding path program 1 times [2024-10-14 13:26:56,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:56,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437919462] [2024-10-14 13:26:56,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:56,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:56,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:56,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437919462] [2024-10-14 13:26:56,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437919462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:56,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:56,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:26:56,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903833741] [2024-10-14 13:26:56,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:56,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:26:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:26:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:56,305 INFO L87 Difference]: Start difference. First operand 660 states and 971 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:56,377 INFO L93 Difference]: Finished difference Result 1263 states and 1855 transitions. [2024-10-14 13:26:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:26:56,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-10-14 13:26:56,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:56,381 INFO L225 Difference]: With dead ends: 1263 [2024-10-14 13:26:56,382 INFO L226 Difference]: Without dead ends: 604 [2024-10-14 13:26:56,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:26:56,384 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:56,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:26:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-10-14 13:26:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-10-14 13:26:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 528 states have (on average 1.4109848484848484) internal successors, (745), 531 states have internal predecessors, (745), 69 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-14 13:26:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 883 transitions. [2024-10-14 13:26:56,447 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 883 transitions. Word has length 149 [2024-10-14 13:26:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:56,448 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 883 transitions. [2024-10-14 13:26:56,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:26:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 883 transitions. [2024-10-14 13:26:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:26:56,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:56,449 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:56,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:26:56,450 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:56,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash 827891058, now seen corresponding path program 1 times [2024-10-14 13:26:56,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:56,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629516334] [2024-10-14 13:26:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:26:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:26:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:26:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:26:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:26:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:26:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:26:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:26:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:26:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:26:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:26:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:26:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:26:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:26:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:26:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:26:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:26:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:26:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:26:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:26:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:26:57,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:26:57,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629516334] [2024-10-14 13:26:57,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629516334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:26:57,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:26:57,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:26:57,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474694938] [2024-10-14 13:26:57,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:26:57,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:26:57,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:26:57,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:26:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:26:57,664 INFO L87 Difference]: Start difference. First operand 604 states and 883 transitions. Second operand has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:26:59,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:26:59,182 INFO L93 Difference]: Finished difference Result 1493 states and 2151 transitions. [2024-10-14 13:26:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-14 13:26:59,183 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:26:59,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:26:59,187 INFO L225 Difference]: With dead ends: 1493 [2024-10-14 13:26:59,187 INFO L226 Difference]: Without dead ends: 890 [2024-10-14 13:26:59,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1593, Unknown=0, NotChecked=0, Total=1892 [2024-10-14 13:26:59,190 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 874 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:26:59,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 2625 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 13:26:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2024-10-14 13:26:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 778. [2024-10-14 13:26:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 667 states have (on average 1.3733133433283358) internal successors, (916), 672 states have internal predecessors, (916), 99 states have call successors, (99), 11 states have call predecessors, (99), 11 states have return successors, (99), 94 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-14 13:26:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1114 transitions. [2024-10-14 13:26:59,279 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1114 transitions. Word has length 150 [2024-10-14 13:26:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:26:59,280 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1114 transitions. [2024-10-14 13:26:59,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:26:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1114 transitions. [2024-10-14 13:26:59,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:26:59,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:26:59,282 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:26:59,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 13:26:59,282 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:26:59,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:26:59,283 INFO L85 PathProgramCache]: Analyzing trace with hash 968439668, now seen corresponding path program 1 times [2024-10-14 13:26:59,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:26:59,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995356080] [2024-10-14 13:26:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:26:59,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:26:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:00,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:00,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995356080] [2024-10-14 13:27:00,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995356080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:00,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:00,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:27:00,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211245852] [2024-10-14 13:27:00,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:00,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:27:00,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:00,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:27:00,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:27:00,806 INFO L87 Difference]: Start difference. First operand 778 states and 1114 transitions. Second operand has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:02,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:02,448 INFO L93 Difference]: Finished difference Result 1734 states and 2464 transitions. [2024-10-14 13:27:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 13:27:02,448 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:02,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:02,452 INFO L225 Difference]: With dead ends: 1734 [2024-10-14 13:27:02,453 INFO L226 Difference]: Without dead ends: 957 [2024-10-14 13:27:02,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2024-10-14 13:27:02,455 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 1049 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:02,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 2607 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 13:27:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-10-14 13:27:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 812. [2024-10-14 13:27:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 688 states have (on average 1.364825581395349) internal successors, (939), 694 states have internal predecessors, (939), 110 states have call successors, (110), 13 states have call predecessors, (110), 13 states have return successors, (110), 104 states have call predecessors, (110), 110 states have call successors, (110) [2024-10-14 13:27:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1159 transitions. [2024-10-14 13:27:02,547 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1159 transitions. Word has length 150 [2024-10-14 13:27:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:02,548 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1159 transitions. [2024-10-14 13:27:02,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1159 transitions. [2024-10-14 13:27:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:02,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:02,549 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:02,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:27:02,550 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:02,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash -640818734, now seen corresponding path program 1 times [2024-10-14 13:27:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:02,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137933225] [2024-10-14 13:27:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137933225] [2024-10-14 13:27:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137933225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:03,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:03,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:27:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78213941] [2024-10-14 13:27:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:03,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:27:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:03,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:27:03,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:27:03,554 INFO L87 Difference]: Start difference. First operand 812 states and 1159 transitions. Second operand has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:04,514 INFO L93 Difference]: Finished difference Result 1827 states and 2603 transitions. [2024-10-14 13:27:04,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:27:04,515 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:04,519 INFO L225 Difference]: With dead ends: 1827 [2024-10-14 13:27:04,520 INFO L226 Difference]: Without dead ends: 1047 [2024-10-14 13:27:04,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-10-14 13:27:04,522 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 130 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:04,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 2894 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:27:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-10-14 13:27:04,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 983. [2024-10-14 13:27:04,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 842 states have (on average 1.3669833729216152) internal successors, (1151), 849 states have internal predecessors, (1151), 125 states have call successors, (125), 15 states have call predecessors, (125), 15 states have return successors, (125), 118 states have call predecessors, (125), 125 states have call successors, (125) [2024-10-14 13:27:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1401 transitions. [2024-10-14 13:27:04,634 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1401 transitions. Word has length 150 [2024-10-14 13:27:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:04,634 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1401 transitions. [2024-10-14 13:27:04,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:04,635 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1401 transitions. [2024-10-14 13:27:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:04,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:04,636 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:04,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 13:27:04,637 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:04,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:04,637 INFO L85 PathProgramCache]: Analyzing trace with hash -382653296, now seen corresponding path program 1 times [2024-10-14 13:27:04,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:04,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188371362] [2024-10-14 13:27:04,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:04,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:04,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188371362] [2024-10-14 13:27:04,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188371362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:04,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:04,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:27:04,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841459250] [2024-10-14 13:27:04,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:04,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:27:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:27:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:27:04,869 INFO L87 Difference]: Start difference. First operand 983 states and 1401 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:05,192 INFO L93 Difference]: Finished difference Result 2241 states and 3176 transitions. [2024-10-14 13:27:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:27:05,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-10-14 13:27:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:05,198 INFO L225 Difference]: With dead ends: 2241 [2024-10-14 13:27:05,199 INFO L226 Difference]: Without dead ends: 1290 [2024-10-14 13:27:05,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:05,201 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 96 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:05,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 566 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:27:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-10-14 13:27:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1214. [2024-10-14 13:27:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1028 states have (on average 1.3482490272373542) internal successors, (1386), 1038 states have internal predecessors, (1386), 164 states have call successors, (164), 21 states have call predecessors, (164), 21 states have return successors, (164), 154 states have call predecessors, (164), 164 states have call successors, (164) [2024-10-14 13:27:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1714 transitions. [2024-10-14 13:27:05,375 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1714 transitions. Word has length 150 [2024-10-14 13:27:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:05,375 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1714 transitions. [2024-10-14 13:27:05,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1714 transitions. [2024-10-14 13:27:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:05,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:05,377 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:05,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:27:05,377 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:05,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1393770546, now seen corresponding path program 1 times [2024-10-14 13:27:05,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:05,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547044] [2024-10-14 13:27:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:05,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:06,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:06,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547044] [2024-10-14 13:27:06,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:06,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:06,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:27:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875516623] [2024-10-14 13:27:06,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:06,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:27:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:27:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:06,097 INFO L87 Difference]: Start difference. First operand 1214 states and 1714 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:06,676 INFO L93 Difference]: Finished difference Result 2828 states and 3989 transitions. [2024-10-14 13:27:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:27:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:06,684 INFO L225 Difference]: With dead ends: 2828 [2024-10-14 13:27:06,684 INFO L226 Difference]: Without dead ends: 1646 [2024-10-14 13:27:06,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:27:06,687 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 116 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:06,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 786 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-10-14 13:27:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1299. [2024-10-14 13:27:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1113 states have (on average 1.35759209344115) internal successors, (1511), 1123 states have internal predecessors, (1511), 164 states have call successors, (164), 21 states have call predecessors, (164), 21 states have return successors, (164), 154 states have call predecessors, (164), 164 states have call successors, (164) [2024-10-14 13:27:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1839 transitions. [2024-10-14 13:27:06,893 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1839 transitions. Word has length 150 [2024-10-14 13:27:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:06,893 INFO L471 AbstractCegarLoop]: Abstraction has 1299 states and 1839 transitions. [2024-10-14 13:27:06,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1839 transitions. [2024-10-14 13:27:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:06,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:06,895 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:06,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:27:06,896 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:06,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:06,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1282409300, now seen corresponding path program 1 times [2024-10-14 13:27:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:06,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567725693] [2024-10-14 13:27:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:07,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:07,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567725693] [2024-10-14 13:27:07,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567725693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:07,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:07,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:27:07,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025490481] [2024-10-14 13:27:07,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:07,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:27:07,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:07,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:27:07,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:07,352 INFO L87 Difference]: Start difference. First operand 1299 states and 1839 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:07,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:07,817 INFO L93 Difference]: Finished difference Result 2754 states and 3881 transitions. [2024-10-14 13:27:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:27:07,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:07,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:07,824 INFO L225 Difference]: With dead ends: 2754 [2024-10-14 13:27:07,825 INFO L226 Difference]: Without dead ends: 1487 [2024-10-14 13:27:07,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:07,828 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 126 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:07,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 737 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:07,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-10-14 13:27:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1257. [2024-10-14 13:27:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1071 states have (on average 1.3510737628384688) internal successors, (1447), 1081 states have internal predecessors, (1447), 164 states have call successors, (164), 21 states have call predecessors, (164), 21 states have return successors, (164), 154 states have call predecessors, (164), 164 states have call successors, (164) [2024-10-14 13:27:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1775 transitions. [2024-10-14 13:27:08,021 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1775 transitions. Word has length 150 [2024-10-14 13:27:08,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:08,022 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1775 transitions. [2024-10-14 13:27:08,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:08,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1775 transitions. [2024-10-14 13:27:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:08,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:08,024 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:08,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:27:08,025 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:08,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:08,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1193026098, now seen corresponding path program 1 times [2024-10-14 13:27:08,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:08,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569790898] [2024-10-14 13:27:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:08,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:08,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569790898] [2024-10-14 13:27:08,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569790898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:08,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:08,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:27:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834672131] [2024-10-14 13:27:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:08,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:27:08,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:27:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:08,702 INFO L87 Difference]: Start difference. First operand 1257 states and 1775 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:09,272 INFO L93 Difference]: Finished difference Result 2288 states and 3232 transitions. [2024-10-14 13:27:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:27:09,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:09,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:09,279 INFO L225 Difference]: With dead ends: 2288 [2024-10-14 13:27:09,279 INFO L226 Difference]: Without dead ends: 1757 [2024-10-14 13:27:09,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:27:09,281 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 122 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:09,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1154 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:09,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-10-14 13:27:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1607. [2024-10-14 13:27:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1380 states have (on average 1.3594202898550725) internal successors, (1876), 1393 states have internal predecessors, (1876), 201 states have call successors, (201), 25 states have call predecessors, (201), 25 states have return successors, (201), 188 states have call predecessors, (201), 201 states have call successors, (201) [2024-10-14 13:27:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2278 transitions. [2024-10-14 13:27:09,518 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2278 transitions. Word has length 150 [2024-10-14 13:27:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:09,519 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2278 transitions. [2024-10-14 13:27:09,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2278 transitions. [2024-10-14 13:27:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:09,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:09,521 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:09,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:27:09,521 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:09,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:09,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1333574708, now seen corresponding path program 1 times [2024-10-14 13:27:09,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:09,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188443965] [2024-10-14 13:27:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:10,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:10,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188443965] [2024-10-14 13:27:10,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188443965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:10,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:10,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:27:10,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732902253] [2024-10-14 13:27:10,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:10,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:27:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:27:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:27:10,406 INFO L87 Difference]: Start difference. First operand 1607 states and 2278 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:11,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:11,554 INFO L93 Difference]: Finished difference Result 3606 states and 5084 transitions. [2024-10-14 13:27:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 13:27:11,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:11,562 INFO L225 Difference]: With dead ends: 3606 [2024-10-14 13:27:11,563 INFO L226 Difference]: Without dead ends: 2031 [2024-10-14 13:27:11,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2024-10-14 13:27:11,566 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 988 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:11,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1776 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:27:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2024-10-14 13:27:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 1712. [2024-10-14 13:27:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1456 states have (on average 1.3509615384615385) internal successors, (1967), 1470 states have internal predecessors, (1967), 224 states have call successors, (224), 31 states have call predecessors, (224), 31 states have return successors, (224), 210 states have call predecessors, (224), 224 states have call successors, (224) [2024-10-14 13:27:11,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2415 transitions. [2024-10-14 13:27:11,799 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2415 transitions. Word has length 150 [2024-10-14 13:27:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:11,799 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2415 transitions. [2024-10-14 13:27:11,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:11,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2415 transitions. [2024-10-14 13:27:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:11,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:11,802 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:11,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 13:27:11,802 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:11,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:11,802 INFO L85 PathProgramCache]: Analyzing trace with hash -7567152, now seen corresponding path program 1 times [2024-10-14 13:27:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:11,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731286972] [2024-10-14 13:27:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:11,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:12,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:12,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731286972] [2024-10-14 13:27:12,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731286972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:12,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:12,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:27:12,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445412647] [2024-10-14 13:27:12,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:12,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:27:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:27:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:27:12,526 INFO L87 Difference]: Start difference. First operand 1712 states and 2415 transitions. Second operand has 13 states, 9 states have (on average 6.444444444444445) internal successors, (58), 13 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:27:13,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:13,562 INFO L93 Difference]: Finished difference Result 3457 states and 4869 transitions. [2024-10-14 13:27:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:27:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 6.444444444444445) internal successors, (58), 13 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-10-14 13:27:13,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:13,569 INFO L225 Difference]: With dead ends: 3457 [2024-10-14 13:27:13,570 INFO L226 Difference]: Without dead ends: 1793 [2024-10-14 13:27:13,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:27:13,573 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 609 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:13,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1547 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:27:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2024-10-14 13:27:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1553. [2024-10-14 13:27:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1329 states have (on average 1.3528969149736645) internal successors, (1798), 1341 states have internal predecessors, (1798), 196 states have call successors, (196), 27 states have call predecessors, (196), 27 states have return successors, (196), 184 states have call predecessors, (196), 196 states have call successors, (196) [2024-10-14 13:27:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2190 transitions. [2024-10-14 13:27:13,771 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2190 transitions. Word has length 150 [2024-10-14 13:27:13,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:13,771 INFO L471 AbstractCegarLoop]: Abstraction has 1553 states and 2190 transitions. [2024-10-14 13:27:13,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 6.444444444444445) internal successors, (58), 13 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-10-14 13:27:13,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2190 transitions. [2024-10-14 13:27:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:13,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:13,773 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:13,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:27:13,773 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:13,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:13,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1626354602, now seen corresponding path program 1 times [2024-10-14 13:27:13,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:13,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452378809] [2024-10-14 13:27:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:13,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:14,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:14,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452378809] [2024-10-14 13:27:14,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452378809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:14,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:14,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:27:14,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015990861] [2024-10-14 13:27:14,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:14,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:27:14,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:14,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:27:14,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:14,464 INFO L87 Difference]: Start difference. First operand 1553 states and 2190 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:14,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:14,868 INFO L93 Difference]: Finished difference Result 3061 states and 4310 transitions. [2024-10-14 13:27:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:27:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:14,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:14,873 INFO L225 Difference]: With dead ends: 3061 [2024-10-14 13:27:14,874 INFO L226 Difference]: Without dead ends: 1509 [2024-10-14 13:27:14,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:14,877 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 118 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:14,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1245 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:27:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-10-14 13:27:15,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1248. [2024-10-14 13:27:15,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1068 states have (on average 1.3529962546816479) internal successors, (1445), 1076 states have internal predecessors, (1445), 156 states have call successors, (156), 23 states have call predecessors, (156), 23 states have return successors, (156), 148 states have call predecessors, (156), 156 states have call successors, (156) [2024-10-14 13:27:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1757 transitions. [2024-10-14 13:27:15,016 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1757 transitions. Word has length 150 [2024-10-14 13:27:15,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:15,016 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1757 transitions. [2024-10-14 13:27:15,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1757 transitions. [2024-10-14 13:27:15,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:15,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:15,018 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:15,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 13:27:15,018 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:15,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1915660882, now seen corresponding path program 1 times [2024-10-14 13:27:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276489329] [2024-10-14 13:27:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:15,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:15,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:15,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276489329] [2024-10-14 13:27:15,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276489329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:15,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:15,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:27:15,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411493951] [2024-10-14 13:27:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:15,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:27:15,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:27:15,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:27:15,825 INFO L87 Difference]: Start difference. First operand 1248 states and 1757 transitions. Second operand has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:16,628 INFO L93 Difference]: Finished difference Result 2647 states and 3720 transitions. [2024-10-14 13:27:16,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:27:16,629 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:16,633 INFO L225 Difference]: With dead ends: 2647 [2024-10-14 13:27:16,633 INFO L226 Difference]: Without dead ends: 1400 [2024-10-14 13:27:16,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-10-14 13:27:16,635 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 123 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:16,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2982 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:27:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-10-14 13:27:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1250. [2024-10-14 13:27:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1070 states have (on average 1.3514018691588785) internal successors, (1446), 1078 states have internal predecessors, (1446), 156 states have call successors, (156), 23 states have call predecessors, (156), 23 states have return successors, (156), 148 states have call predecessors, (156), 156 states have call successors, (156) [2024-10-14 13:27:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1758 transitions. [2024-10-14 13:27:16,818 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1758 transitions. Word has length 150 [2024-10-14 13:27:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:16,819 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1758 transitions. [2024-10-14 13:27:16,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1758 transitions. [2024-10-14 13:27:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:16,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:16,821 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:16,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 13:27:16,821 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:16,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:16,821 INFO L85 PathProgramCache]: Analyzing trace with hash -53975726, now seen corresponding path program 1 times [2024-10-14 13:27:16,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:16,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030425607] [2024-10-14 13:27:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:16,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:17,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:17,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030425607] [2024-10-14 13:27:17,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030425607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:17,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:17,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:27:17,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218540391] [2024-10-14 13:27:17,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:17,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:27:17,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:17,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:27:17,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:27:17,560 INFO L87 Difference]: Start difference. First operand 1250 states and 1758 transitions. Second operand has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:18,224 INFO L93 Difference]: Finished difference Result 2788 states and 3927 transitions. [2024-10-14 13:27:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:27:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:18,228 INFO L225 Difference]: With dead ends: 2788 [2024-10-14 13:27:18,228 INFO L226 Difference]: Without dead ends: 1539 [2024-10-14 13:27:18,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:27:18,230 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 121 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:18,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2580 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:27:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-10-14 13:27:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1529. [2024-10-14 13:27:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1313 states have (on average 1.3556740289413556) internal successors, (1780), 1324 states have internal predecessors, (1780), 189 states have call successors, (189), 26 states have call predecessors, (189), 26 states have return successors, (189), 178 states have call predecessors, (189), 189 states have call successors, (189) [2024-10-14 13:27:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2158 transitions. [2024-10-14 13:27:18,433 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2158 transitions. Word has length 150 [2024-10-14 13:27:18,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:18,433 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 2158 transitions. [2024-10-14 13:27:18,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2158 transitions. [2024-10-14 13:27:18,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:18,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:18,436 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:18,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 13:27:18,436 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:18,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 647088852, now seen corresponding path program 1 times [2024-10-14 13:27:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:18,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498493082] [2024-10-14 13:27:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:19,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:19,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498493082] [2024-10-14 13:27:19,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498493082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:19,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:19,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:27:19,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138237994] [2024-10-14 13:27:19,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:19,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:27:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:19,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:27:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:19,129 INFO L87 Difference]: Start difference. First operand 1529 states and 2158 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:19,535 INFO L93 Difference]: Finished difference Result 3322 states and 4695 transitions. [2024-10-14 13:27:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:27:19,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:19,542 INFO L225 Difference]: With dead ends: 3322 [2024-10-14 13:27:19,542 INFO L226 Difference]: Without dead ends: 1794 [2024-10-14 13:27:19,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:19,546 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 107 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:19,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1204 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:27:19,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2024-10-14 13:27:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1589. [2024-10-14 13:27:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1373 states have (on average 1.3590677348871085) internal successors, (1866), 1384 states have internal predecessors, (1866), 189 states have call successors, (189), 26 states have call predecessors, (189), 26 states have return successors, (189), 178 states have call predecessors, (189), 189 states have call successors, (189) [2024-10-14 13:27:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2244 transitions. [2024-10-14 13:27:19,769 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2244 transitions. Word has length 150 [2024-10-14 13:27:19,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:19,770 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2244 transitions. [2024-10-14 13:27:19,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2244 transitions. [2024-10-14 13:27:19,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:19,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:19,772 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:19,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 13:27:19,772 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:19,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:19,773 INFO L85 PathProgramCache]: Analyzing trace with hash -640781740, now seen corresponding path program 1 times [2024-10-14 13:27:19,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:19,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747123721] [2024-10-14 13:27:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:19,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:20,260 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:20,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747123721] [2024-10-14 13:27:20,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747123721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:20,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:20,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:27:20,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049769104] [2024-10-14 13:27:20,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:20,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:27:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:27:20,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:20,262 INFO L87 Difference]: Start difference. First operand 1589 states and 2244 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:20,696 INFO L93 Difference]: Finished difference Result 3606 states and 5097 transitions. [2024-10-14 13:27:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:27:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:20,703 INFO L225 Difference]: With dead ends: 3606 [2024-10-14 13:27:20,703 INFO L226 Difference]: Without dead ends: 2018 [2024-10-14 13:27:20,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:20,706 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:20,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 979 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:27:20,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2024-10-14 13:27:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2010. [2024-10-14 13:27:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1734 states have (on average 1.3581314878892734) internal successors, (2355), 1751 states have internal predecessors, (2355), 243 states have call successors, (243), 32 states have call predecessors, (243), 32 states have return successors, (243), 226 states have call predecessors, (243), 243 states have call successors, (243) [2024-10-14 13:27:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2841 transitions. [2024-10-14 13:27:20,889 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2841 transitions. Word has length 150 [2024-10-14 13:27:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:20,890 INFO L471 AbstractCegarLoop]: Abstraction has 2010 states and 2841 transitions. [2024-10-14 13:27:20,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2841 transitions. [2024-10-14 13:27:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:20,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:20,892 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:20,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 13:27:20,893 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:20,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash 8063888, now seen corresponding path program 1 times [2024-10-14 13:27:20,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:20,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943149420] [2024-10-14 13:27:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:21,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:21,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943149420] [2024-10-14 13:27:21,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943149420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:21,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:27:21,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362260745] [2024-10-14 13:27:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:21,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:27:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:21,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:27:21,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:21,554 INFO L87 Difference]: Start difference. First operand 2010 states and 2841 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:22,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:22,096 INFO L93 Difference]: Finished difference Result 4072 states and 5742 transitions. [2024-10-14 13:27:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:27:22,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:22,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:22,101 INFO L225 Difference]: With dead ends: 4072 [2024-10-14 13:27:22,101 INFO L226 Difference]: Without dead ends: 2063 [2024-10-14 13:27:22,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:27:22,104 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 107 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:22,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1014 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-10-14 13:27:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1690. [2024-10-14 13:27:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1464 states have (on average 1.3545081967213115) internal successors, (1983), 1476 states have internal predecessors, (1983), 194 states have call successors, (194), 31 states have call predecessors, (194), 31 states have return successors, (194), 182 states have call predecessors, (194), 194 states have call successors, (194) [2024-10-14 13:27:22,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2371 transitions. [2024-10-14 13:27:22,378 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2371 transitions. Word has length 150 [2024-10-14 13:27:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:22,379 INFO L471 AbstractCegarLoop]: Abstraction has 1690 states and 2371 transitions. [2024-10-14 13:27:22,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2371 transitions. [2024-10-14 13:27:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:22,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:22,381 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:22,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 13:27:22,381 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:22,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash 709128466, now seen corresponding path program 1 times [2024-10-14 13:27:22,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:22,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950481394] [2024-10-14 13:27:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:22,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:23,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:23,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950481394] [2024-10-14 13:27:23,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950481394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:23,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:27:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517149913] [2024-10-14 13:27:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:23,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:27:23,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:27:23,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:27:23,107 INFO L87 Difference]: Start difference. First operand 1690 states and 2371 transitions. Second operand has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:23,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:23,962 INFO L93 Difference]: Finished difference Result 3570 states and 4997 transitions. [2024-10-14 13:27:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:27:23,963 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-10-14 13:27:23,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:23,969 INFO L225 Difference]: With dead ends: 3570 [2024-10-14 13:27:23,969 INFO L226 Difference]: Without dead ends: 1916 [2024-10-14 13:27:23,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:27:23,972 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 115 mSDsluCounter, 2653 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:23,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 2916 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:27:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2024-10-14 13:27:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1911. [2024-10-14 13:27:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1637 states have (on average 1.3445326817348808) internal successors, (2201), 1652 states have internal predecessors, (2201), 233 states have call successors, (233), 40 states have call predecessors, (233), 40 states have return successors, (233), 218 states have call predecessors, (233), 233 states have call successors, (233) [2024-10-14 13:27:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2667 transitions. [2024-10-14 13:27:24,167 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2667 transitions. Word has length 150 [2024-10-14 13:27:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:24,168 INFO L471 AbstractCegarLoop]: Abstraction has 1911 states and 2667 transitions. [2024-10-14 13:27:24,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-14 13:27:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2667 transitions. [2024-10-14 13:27:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:24,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:24,170 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:24,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 13:27:24,171 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:24,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash -563448816, now seen corresponding path program 1 times [2024-10-14 13:27:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:24,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047069780] [2024-10-14 13:27:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047069780] [2024-10-14 13:27:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047069780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:24,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:27:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184647088] [2024-10-14 13:27:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:24,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:27:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:27:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:24,630 INFO L87 Difference]: Start difference. First operand 1911 states and 2667 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:25,162 INFO L93 Difference]: Finished difference Result 3803 states and 5299 transitions. [2024-10-14 13:27:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:27:25,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:25,168 INFO L225 Difference]: With dead ends: 3803 [2024-10-14 13:27:25,168 INFO L226 Difference]: Without dead ends: 1928 [2024-10-14 13:27:25,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:27:25,171 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 104 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:25,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 854 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:27:25,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-10-14 13:27:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1750. [2024-10-14 13:27:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1503 states have (on average 1.3393213572854292) internal successors, (2013), 1515 states have internal predecessors, (2013), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2425 transitions. [2024-10-14 13:27:25,357 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2425 transitions. Word has length 150 [2024-10-14 13:27:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:25,357 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2425 transitions. [2024-10-14 13:27:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2425 transitions. [2024-10-14 13:27:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:25,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:25,360 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:25,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 13:27:25,360 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:25,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:25,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1150254830, now seen corresponding path program 1 times [2024-10-14 13:27:25,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:25,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794506406] [2024-10-14 13:27:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:25,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:26,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:26,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794506406] [2024-10-14 13:27:26,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794506406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:26,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:26,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:27:26,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602241871] [2024-10-14 13:27:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:26,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:27:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:27:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:27:26,152 INFO L87 Difference]: Start difference. First operand 1750 states and 2425 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:26,774 INFO L93 Difference]: Finished difference Result 3651 states and 5063 transitions. [2024-10-14 13:27:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:27:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:26,781 INFO L225 Difference]: With dead ends: 3651 [2024-10-14 13:27:26,781 INFO L226 Difference]: Without dead ends: 1937 [2024-10-14 13:27:26,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:27:26,784 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 107 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:26,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2141 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-10-14 13:27:27,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1744. [2024-10-14 13:27:27,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1497 states have (on average 1.3406813627254508) internal successors, (2007), 1509 states have internal predecessors, (2007), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:27,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2419 transitions. [2024-10-14 13:27:27,053 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2419 transitions. Word has length 150 [2024-10-14 13:27:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:27,054 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2419 transitions. [2024-10-14 13:27:27,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2419 transitions. [2024-10-14 13:27:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:27:27,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:27,056 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:27,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 13:27:27,056 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:27,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash -387150638, now seen corresponding path program 1 times [2024-10-14 13:27:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:27,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427397830] [2024-10-14 13:27:27,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:27,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:27,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427397830] [2024-10-14 13:27:27,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427397830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:27,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:27:27,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951344338] [2024-10-14 13:27:27,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:27,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:27:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:27:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:27:27,727 INFO L87 Difference]: Start difference. First operand 1744 states and 2419 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:28,340 INFO L93 Difference]: Finished difference Result 3630 states and 5039 transitions. [2024-10-14 13:27:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:27:28,341 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-10-14 13:27:28,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:28,346 INFO L225 Difference]: With dead ends: 3630 [2024-10-14 13:27:28,346 INFO L226 Difference]: Without dead ends: 1922 [2024-10-14 13:27:28,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:27:28,350 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 107 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:28,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2145 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:27:28,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2024-10-14 13:27:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1735. [2024-10-14 13:27:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1488 states have (on average 1.340725806451613) internal successors, (1995), 1500 states have internal predecessors, (1995), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2407 transitions. [2024-10-14 13:27:28,555 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2407 transitions. Word has length 150 [2024-10-14 13:27:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:28,555 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2407 transitions. [2024-10-14 13:27:28,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-14 13:27:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2407 transitions. [2024-10-14 13:27:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 13:27:28,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:28,557 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:28,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 13:27:28,557 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:28,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash 175131123, now seen corresponding path program 1 times [2024-10-14 13:27:28,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781254929] [2024-10-14 13:27:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:28,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781254929] [2024-10-14 13:27:28,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781254929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:28,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:28,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:27:28,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432246303] [2024-10-14 13:27:28,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:28,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:27:28,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:27:28,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:27:28,629 INFO L87 Difference]: Start difference. First operand 1735 states and 2407 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:28,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:28,812 INFO L93 Difference]: Finished difference Result 3448 states and 4794 transitions. [2024-10-14 13:27:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:27:28,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-10-14 13:27:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:28,818 INFO L225 Difference]: With dead ends: 3448 [2024-10-14 13:27:28,818 INFO L226 Difference]: Without dead ends: 1749 [2024-10-14 13:27:28,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:27:28,821 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:28,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:27:28,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-10-14 13:27:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1749. [2024-10-14 13:27:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1502 states have (on average 1.337549933422104) internal successors, (2009), 1514 states have internal predecessors, (2009), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2421 transitions. [2024-10-14 13:27:29,115 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2421 transitions. Word has length 151 [2024-10-14 13:27:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:29,115 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2421 transitions. [2024-10-14 13:27:29,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2421 transitions. [2024-10-14 13:27:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 13:27:29,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:29,117 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:29,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 13:27:29,117 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:29,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:29,118 INFO L85 PathProgramCache]: Analyzing trace with hash 876195701, now seen corresponding path program 1 times [2024-10-14 13:27:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747718078] [2024-10-14 13:27:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:29,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,249 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747718078] [2024-10-14 13:27:29,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747718078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:29,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:29,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:27:29,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393984695] [2024-10-14 13:27:29,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:29,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:27:29,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:27:29,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:29,251 INFO L87 Difference]: Start difference. First operand 1749 states and 2421 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:29,535 INFO L93 Difference]: Finished difference Result 3518 states and 4864 transitions. [2024-10-14 13:27:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:27:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-10-14 13:27:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:29,542 INFO L225 Difference]: With dead ends: 3518 [2024-10-14 13:27:29,542 INFO L226 Difference]: Without dead ends: 1805 [2024-10-14 13:27:29,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:29,545 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:29,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 822 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:27:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2024-10-14 13:27:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1763. [2024-10-14 13:27:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1516 states have (on average 1.3344327176781003) internal successors, (2023), 1528 states have internal predecessors, (2023), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2435 transitions. [2024-10-14 13:27:29,765 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2435 transitions. Word has length 151 [2024-10-14 13:27:29,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:29,766 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 2435 transitions. [2024-10-14 13:27:29,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2435 transitions. [2024-10-14 13:27:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 13:27:29,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:29,767 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:29,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 13:27:29,768 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:29,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1350562168, now seen corresponding path program 1 times [2024-10-14 13:27:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237600902] [2024-10-14 13:27:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:29,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:29,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237600902] [2024-10-14 13:27:29,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237600902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:29,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:29,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:27:29,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841341054] [2024-10-14 13:27:29,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:29,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:27:29,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:27:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:27:29,887 INFO L87 Difference]: Start difference. First operand 1763 states and 2435 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:30,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:30,380 INFO L93 Difference]: Finished difference Result 4937 states and 6761 transitions. [2024-10-14 13:27:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:27:30,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-10-14 13:27:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:30,390 INFO L225 Difference]: With dead ends: 4937 [2024-10-14 13:27:30,390 INFO L226 Difference]: Without dead ends: 3210 [2024-10-14 13:27:30,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:27:30,394 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 141 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:30,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 547 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:27:30,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-10-14 13:27:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2006. [2024-10-14 13:27:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1759 states have (on average 1.2927799886299034) internal successors, (2274), 1771 states have internal predecessors, (2274), 206 states have call successors, (206), 40 states have call predecessors, (206), 40 states have return successors, (206), 194 states have call predecessors, (206), 206 states have call successors, (206) [2024-10-14 13:27:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2686 transitions. [2024-10-14 13:27:30,689 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2686 transitions. Word has length 153 [2024-10-14 13:27:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:27:30,690 INFO L471 AbstractCegarLoop]: Abstraction has 2006 states and 2686 transitions. [2024-10-14 13:27:30,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2686 transitions. [2024-10-14 13:27:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 13:27:30,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:27:30,692 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:30,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 13:27:30,692 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:27:30,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:27:30,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1680032819, now seen corresponding path program 1 times [2024-10-14 13:27:30,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:27:30,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535291794] [2024-10-14 13:27:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:27:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:27:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:27:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:27:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:27:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:27:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:27:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:27:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:27:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:27:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 13:27:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 13:27:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 13:27:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 13:27:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 13:27:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 13:27:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:27:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 13:27:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 13:27:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 13:27:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 13:27:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:27:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 13:27:30,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:27:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535291794] [2024-10-14 13:27:30,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535291794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:27:30,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:27:30,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:27:30,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341207977] [2024-10-14 13:27:30,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:27:30,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:27:30,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:27:30,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:27:30,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:27:30,770 INFO L87 Difference]: Start difference. First operand 2006 states and 2686 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-14 13:27:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:27:31,042 INFO L93 Difference]: Finished difference Result 3989 states and 5350 transitions. [2024-10-14 13:27:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:27:31,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-10-14 13:27:31,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:27:31,049 INFO L225 Difference]: With dead ends: 3989 [2024-10-14 13:27:31,050 INFO L226 Difference]: Without dead ends: 2019 [2024-10-14 13:27:31,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:27:31,053 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:27:31,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:27:31,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states.