./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.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 afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:38:25,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:38:25,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:38:25,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:38:25,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:38:25,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:38:25,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:38:25,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:38:25,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:38:25,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:38:25,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:38:25,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:38:25,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:38:25,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:38:25,483 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:38:25,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:38:25,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:38:25,484 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:38:25,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:38:25,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:38:25,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:38:25,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:38:25,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:38:25,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:38:25,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:38:25,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:38:25,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:38:25,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:38:25,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:38:25,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:38:25,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:38:25,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:38:25,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:38:25,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:38:25,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:38:25,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:38:25,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:38:25,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:38:25,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:38:25,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:38:25,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:38:25,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:38:25,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afdbc11a14d78cfc3e8e425320a4468be878b1004162e6354634b69484bbf0df [2024-11-19 00:38:25,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:38:25,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:38:25,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:38:25,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:38:25,783 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:38:25,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-19 00:38:27,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:38:27,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:38:27,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-71.i [2024-11-19 00:38:27,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf8696c2f/68b7317882c0498fa8d33f89bb9a83a2/FLAG7e5adfe85 [2024-11-19 00:38:27,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf8696c2f/68b7317882c0498fa8d33f89bb9a83a2 [2024-11-19 00:38:27,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:38:27,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:38:27,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:38:27,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:38:27,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:38:27,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:38:27" (1/1) ... [2024-11-19 00:38:27,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a09eddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:27, skipping insertion in model container [2024-11-19 00:38:27,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:38:27" (1/1) ... [2024-11-19 00:38:27,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:38:27,962 WARN L250 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-71.i[916,929] [2024-11-19 00:38:28,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:38:28,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:38:28,048 WARN L250 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-71.i[916,929] [2024-11-19 00:38:28,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:38:28,113 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:38:28,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28 WrapperNode [2024-11-19 00:38:28,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:38:28,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:38:28,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:38:28,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:38:28,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,189 INFO L138 Inliner]: procedures = 26, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 495 [2024-11-19 00:38:28,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:38:28,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:38:28,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:38:28,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:38:28,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,232 INFO L175 MemorySlicer]: Split 138 memory accesses to 6 slices as follows [2, 20, 16, 85, 7, 8]. 62 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 3, 3, 5, 1, 2]. The 18 writes are split as follows [0, 3, 3, 8, 1, 3]. [2024-11-19 00:38:28,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:38:28,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:38:28,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:38:28,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:38:28,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (1/1) ... [2024-11-19 00:38:28,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:38:28,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:38:28,337 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) [2024-11-19 00:38:28,344 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 [2024-11-19 00:38:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:38:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:38:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:38:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:38:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:38:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:38:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:38:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:38:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:38:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:38:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:38:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:38:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:38:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:38:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:38:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:38:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:38:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:38:28,559 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:38:28,561 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:38:29,071 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-19 00:38:29,071 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:38:29,090 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:38:29,090 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:38:29,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:38:29 BoogieIcfgContainer [2024-11-19 00:38:29,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:38:29,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:38:29,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:38:29,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:38:29,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:38:27" (1/3) ... [2024-11-19 00:38:29,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f365705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:38:29, skipping insertion in model container [2024-11-19 00:38:29,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:38:28" (2/3) ... [2024-11-19 00:38:29,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f365705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:38:29, skipping insertion in model container [2024-11-19 00:38:29,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:38:29" (3/3) ... [2024-11-19 00:38:29,100 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-71.i [2024-11-19 00:38:29,114 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:38:29,115 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:38:29,180 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:38:29,188 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;@78c939f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:38:29,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:38:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 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) [2024-11-19 00:38:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:38:29,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:29,207 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] [2024-11-19 00:38:29,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:29,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash 634959908, now seen corresponding path program 1 times [2024-11-19 00:38:29,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:29,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426960978] [2024-11-19 00:38:29,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:29,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:38:29,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:29,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426960978] [2024-11-19 00:38:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426960978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:38:29,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671889227] [2024-11-19 00:38:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:29,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:38:29,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:38:29,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:38:29,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:38:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:29,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:38:29,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:38:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 00:38:29,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:38:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671889227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:29,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:38:29,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:38:29,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988270956] [2024-11-19 00:38:29,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:29,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:38:29,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:38:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:38:29,935 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 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), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:29,970 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-19 00:38:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:38:29,973 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), 2 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 144 [2024-11-19 00:38:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:29,982 INFO L225 Difference]: With dead ends: 203 [2024-11-19 00:38:29,983 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 00:38:29,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:38:29,990 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:29,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:38:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 00:38:30,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 00:38:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 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) [2024-11-19 00:38:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-19 00:38:30,044 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-19 00:38:30,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:30,045 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-19 00:38:30,046 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), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 00:38:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-19 00:38:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:38:30,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:30,050 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] [2024-11-19 00:38:30,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 00:38:30,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:38:30,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:30,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:30,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1640475338, now seen corresponding path program 1 times [2024-11-19 00:38:30,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:30,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098777129] [2024-11-19 00:38:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:30,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098777129] [2024-11-19 00:38:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098777129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:30,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:30,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:38:30,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975677040] [2024-11-19 00:38:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:30,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:38:30,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:38:30,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:30,678 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-19 00:38:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:30,744 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-19 00:38:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:38:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 144 [2024-11-19 00:38:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:30,749 INFO L225 Difference]: With dead ends: 202 [2024-11-19 00:38:30,749 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 00:38:30,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:30,751 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:30,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:38:30,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 00:38:30,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-19 00:38:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 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) [2024-11-19 00:38:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-19 00:38:30,776 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-19 00:38:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:30,778 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-19 00:38:30,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-19 00:38:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-19 00:38:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:38:30,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:30,783 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] [2024-11-19 00:38:30,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:38:30,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:30,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash -879484596, now seen corresponding path program 1 times [2024-11-19 00:38:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:30,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164839646] [2024-11-19 00:38:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:30,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164839646] [2024-11-19 00:38:31,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164839646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:31,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:31,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:38:31,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615967245] [2024-11-19 00:38:31,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:31,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:38:31,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:31,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:38:31,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:31,052 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-19 00:38:31,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:31,083 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-19 00:38:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:38:31,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 144 [2024-11-19 00:38:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:31,086 INFO L225 Difference]: With dead ends: 206 [2024-11-19 00:38:31,086 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 00:38:31,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:38:31,088 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:31,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:38:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 00:38:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-19 00:38:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 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) [2024-11-19 00:38:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-19 00:38:31,105 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-19 00:38:31,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:31,106 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-19 00:38:31,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2024-11-19 00:38:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-19 00:38:31,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:38:31,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:31,109 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] [2024-11-19 00:38:31,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:38:31,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:31,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -877637554, now seen corresponding path program 1 times [2024-11-19 00:38:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:31,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896224848] [2024-11-19 00:38:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:31,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:31,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:31,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896224848] [2024-11-19 00:38:31,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896224848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:31,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:31,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:38:31,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608601508] [2024-11-19 00:38:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:31,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:38:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:38:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:38:31,473 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-19 00:38:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:31,592 INFO L93 Difference]: Finished difference Result 266 states and 375 transitions. [2024-11-19 00:38:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:38:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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 144 [2024-11-19 00:38:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:31,596 INFO L225 Difference]: With dead ends: 266 [2024-11-19 00:38:31,598 INFO L226 Difference]: Without dead ends: 164 [2024-11-19 00:38:31,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:31,600 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 87 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:31,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 709 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:31,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-19 00:38:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 107. [2024-11-19 00:38:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.302325581395349) internal successors, (112), 86 states have internal predecessors, (112), 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) [2024-11-19 00:38:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2024-11-19 00:38:31,618 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 144 [2024-11-19 00:38:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:31,619 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2024-11-19 00:38:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 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) [2024-11-19 00:38:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2024-11-19 00:38:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 00:38:31,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:31,624 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] [2024-11-19 00:38:31,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:38:31,625 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:31,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -694713373, now seen corresponding path program 1 times [2024-11-19 00:38:31,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292748181] [2024-11-19 00:38:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:32,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:32,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292748181] [2024-11-19 00:38:32,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292748181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:32,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:32,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:32,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927695402] [2024-11-19 00:38:32,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:32,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:32,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:32,184 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-11-19 00:38:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:32,315 INFO L93 Difference]: Finished difference Result 272 states and 384 transitions. [2024-11-19 00:38:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:38:32,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 145 [2024-11-19 00:38:32,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:32,318 INFO L225 Difference]: With dead ends: 272 [2024-11-19 00:38:32,318 INFO L226 Difference]: Without dead ends: 168 [2024-11-19 00:38:32,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:32,320 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 135 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:32,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 628 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-19 00:38:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 115. [2024-11-19 00:38:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3297872340425532) internal successors, (125), 94 states have internal predecessors, (125), 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) [2024-11-19 00:38:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-19 00:38:32,339 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 145 [2024-11-19 00:38:32,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:32,340 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-19 00:38:32,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-11-19 00:38:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-19 00:38:32,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:38:32,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:32,344 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] [2024-11-19 00:38:32,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:38:32,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:32,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:32,347 INFO L85 PathProgramCache]: Analyzing trace with hash 982540647, now seen corresponding path program 1 times [2024-11-19 00:38:32,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:32,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430491029] [2024-11-19 00:38:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:32,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:33,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:33,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430491029] [2024-11-19 00:38:33,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430491029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:33,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:33,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:38:33,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349744142] [2024-11-19 00:38:33,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:33,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:38:33,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:38:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:38:33,830 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 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) [2024-11-19 00:38:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:34,311 INFO L93 Difference]: Finished difference Result 309 states and 436 transitions. [2024-11-19 00:38:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:38:34,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 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 [2024-11-19 00:38:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:34,314 INFO L225 Difference]: With dead ends: 309 [2024-11-19 00:38:34,315 INFO L226 Difference]: Without dead ends: 197 [2024-11-19 00:38:34,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:34,317 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 169 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:34,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1028 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:38:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-19 00:38:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-11-19 00:38:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 160 states have internal predecessors, (209), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-19 00:38:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 273 transitions. [2024-11-19 00:38:34,348 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 273 transitions. Word has length 146 [2024-11-19 00:38:34,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:34,349 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 273 transitions. [2024-11-19 00:38:34,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 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) [2024-11-19 00:38:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 273 transitions. [2024-11-19 00:38:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 00:38:34,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:34,350 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] [2024-11-19 00:38:34,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:38:34,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:34,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash -269161938, now seen corresponding path program 1 times [2024-11-19 00:38:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:34,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284531168] [2024-11-19 00:38:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284531168] [2024-11-19 00:38:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284531168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:34,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071974670] [2024-11-19 00:38:34,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:34,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:34,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:34,786 INFO L87 Difference]: Start difference. First operand 194 states and 273 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 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) [2024-11-19 00:38:34,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:34,911 INFO L93 Difference]: Finished difference Result 447 states and 625 transitions. [2024-11-19 00:38:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:38:34,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 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 [2024-11-19 00:38:34,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:34,915 INFO L225 Difference]: With dead ends: 447 [2024-11-19 00:38:34,915 INFO L226 Difference]: Without dead ends: 256 [2024-11-19 00:38:34,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:38:34,918 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 66 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:34,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 621 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-19 00:38:34,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2024-11-19 00:38:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 214 states have internal predecessors, (278), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:38:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 350 transitions. [2024-11-19 00:38:34,956 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 350 transitions. Word has length 146 [2024-11-19 00:38:34,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:34,956 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 350 transitions. [2024-11-19 00:38:34,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 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) [2024-11-19 00:38:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 350 transitions. [2024-11-19 00:38:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:34,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:34,959 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] [2024-11-19 00:38:34,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:38:34,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:34,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:34,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1431681951, now seen corresponding path program 1 times [2024-11-19 00:38:34,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:34,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021360449] [2024-11-19 00:38:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:34,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:36,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:36,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021360449] [2024-11-19 00:38:36,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021360449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:36,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:36,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:36,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567118218] [2024-11-19 00:38:36,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:36,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:36,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:36,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:36,285 INFO L87 Difference]: Start difference. First operand 253 states and 350 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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) [2024-11-19 00:38:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:37,144 INFO L93 Difference]: Finished difference Result 665 states and 914 transitions. [2024-11-19 00:38:37,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:38:37,145 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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 147 [2024-11-19 00:38:37,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:37,148 INFO L225 Difference]: With dead ends: 665 [2024-11-19 00:38:37,148 INFO L226 Difference]: Without dead ends: 415 [2024-11-19 00:38:37,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:38:37,150 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 194 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:37,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 866 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:38:37,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-19 00:38:37,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 274. [2024-11-19 00:38:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 233 states have (on average 1.3261802575107295) internal successors, (309), 235 states have internal predecessors, (309), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-19 00:38:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-19 00:38:37,176 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 147 [2024-11-19 00:38:37,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:37,176 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-19 00:38:37,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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) [2024-11-19 00:38:37,177 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-19 00:38:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:37,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:37,179 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] [2024-11-19 00:38:37,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:38:37,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:37,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1583421667, now seen corresponding path program 1 times [2024-11-19 00:38:37,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:37,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437820267] [2024-11-19 00:38:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:37,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437820267] [2024-11-19 00:38:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437820267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:38,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:38,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:38:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358678020] [2024-11-19 00:38:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:38,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:38:38,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:38:38,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:38:38,018 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 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) [2024-11-19 00:38:38,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:38,374 INFO L93 Difference]: Finished difference Result 621 states and 856 transitions. [2024-11-19 00:38:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:38:38,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 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 147 [2024-11-19 00:38:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:38,377 INFO L225 Difference]: With dead ends: 621 [2024-11-19 00:38:38,377 INFO L226 Difference]: Without dead ends: 350 [2024-11-19 00:38:38,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:38:38,378 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 93 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:38,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1122 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:38:38,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-19 00:38:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2024-11-19 00:38:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 288 states have (on average 1.2951388888888888) internal successors, (373), 291 states have internal predecessors, (373), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 00:38:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 475 transitions. [2024-11-19 00:38:38,418 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 475 transitions. Word has length 147 [2024-11-19 00:38:38,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:38,420 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 475 transitions. [2024-11-19 00:38:38,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 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) [2024-11-19 00:38:38,421 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 475 transitions. [2024-11-19 00:38:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:38,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:38,423 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] [2024-11-19 00:38:38,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:38:38,423 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:38,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash 679019452, now seen corresponding path program 1 times [2024-11-19 00:38:38,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:38,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101923534] [2024-11-19 00:38:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:38,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:38,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:38,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101923534] [2024-11-19 00:38:38,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101923534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:38,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:38,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:38:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97007806] [2024-11-19 00:38:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:38,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:38:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:38:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:38:38,778 INFO L87 Difference]: Start difference. First operand 347 states and 475 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2024-11-19 00:38:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:38,977 INFO L93 Difference]: Finished difference Result 781 states and 1053 transitions. [2024-11-19 00:38:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:38:38,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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 [2024-11-19 00:38:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:38,980 INFO L225 Difference]: With dead ends: 781 [2024-11-19 00:38:38,980 INFO L226 Difference]: Without dead ends: 437 [2024-11-19 00:38:38,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:38,982 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 182 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:38,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 841 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-19 00:38:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 427. [2024-11-19 00:38:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 359 states have (on average 1.2729805013927578) internal successors, (457), 365 states have internal predecessors, (457), 57 states have call successors, (57), 10 states have call predecessors, (57), 10 states have return successors, (57), 51 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-19 00:38:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 571 transitions. [2024-11-19 00:38:39,025 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 571 transitions. Word has length 147 [2024-11-19 00:38:39,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:39,026 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 571 transitions. [2024-11-19 00:38:39,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2024-11-19 00:38:39,026 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 571 transitions. [2024-11-19 00:38:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:39,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:39,028 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] [2024-11-19 00:38:39,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:38:39,029 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:39,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1572230561, now seen corresponding path program 1 times [2024-11-19 00:38:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:39,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410698103] [2024-11-19 00:38:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:39,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:39,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410698103] [2024-11-19 00:38:39,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410698103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:39,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:39,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:38:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840496424] [2024-11-19 00:38:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:39,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:38:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:38:39,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:38:39,337 INFO L87 Difference]: Start difference. First operand 427 states and 571 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2024-11-19 00:38:39,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:39,602 INFO L93 Difference]: Finished difference Result 897 states and 1205 transitions. [2024-11-19 00:38:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:38:39,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2024-11-19 00:38:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:39,605 INFO L225 Difference]: With dead ends: 897 [2024-11-19 00:38:39,605 INFO L226 Difference]: Without dead ends: 482 [2024-11-19 00:38:39,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:39,607 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 117 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:39,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1103 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:38:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-19 00:38:39,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 469. [2024-11-19 00:38:39,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 385 states have (on average 1.2545454545454546) internal successors, (483), 391 states have internal predecessors, (483), 72 states have call successors, (72), 11 states have call predecessors, (72), 11 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-19 00:38:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 627 transitions. [2024-11-19 00:38:39,652 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 627 transitions. Word has length 147 [2024-11-19 00:38:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:39,653 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 627 transitions. [2024-11-19 00:38:39,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2024-11-19 00:38:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 627 transitions. [2024-11-19 00:38:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:39,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:39,655 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] [2024-11-19 00:38:39,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:38:39,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:39,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1442873057, now seen corresponding path program 1 times [2024-11-19 00:38:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:39,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370249761] [2024-11-19 00:38:39,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:39,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:40,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:40,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370249761] [2024-11-19 00:38:40,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370249761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:40,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:40,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:40,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420934490] [2024-11-19 00:38:40,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:40,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:40,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:40,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:40,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:40,854 INFO L87 Difference]: Start difference. First operand 469 states and 627 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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) [2024-11-19 00:38:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:42,089 INFO L93 Difference]: Finished difference Result 1045 states and 1390 transitions. [2024-11-19 00:38:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:38:42,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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 147 [2024-11-19 00:38:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:42,093 INFO L225 Difference]: With dead ends: 1045 [2024-11-19 00:38:42,093 INFO L226 Difference]: Without dead ends: 588 [2024-11-19 00:38:42,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:38:42,095 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 191 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:42,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1630 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:38:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-19 00:38:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 485. [2024-11-19 00:38:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 400 states have (on average 1.2525) internal successors, (501), 406 states have internal predecessors, (501), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-19 00:38:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 645 transitions. [2024-11-19 00:38:42,156 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 645 transitions. Word has length 147 [2024-11-19 00:38:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:42,157 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 645 transitions. [2024-11-19 00:38:42,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 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) [2024-11-19 00:38:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 645 transitions. [2024-11-19 00:38:42,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 00:38:42,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:42,160 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] [2024-11-19 00:38:42,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:38:42,160 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:42,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1020171231, now seen corresponding path program 1 times [2024-11-19 00:38:42,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:42,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106240905] [2024-11-19 00:38:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:42,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:43,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:43,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106240905] [2024-11-19 00:38:43,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106240905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:43,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:43,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:38:43,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253319248] [2024-11-19 00:38:43,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:43,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:38:43,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:43,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:38:43,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:38:43,629 INFO L87 Difference]: Start difference. First operand 485 states and 645 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 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) [2024-11-19 00:38:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:45,019 INFO L93 Difference]: Finished difference Result 1077 states and 1426 transitions. [2024-11-19 00:38:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:38:45,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 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 147 [2024-11-19 00:38:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:45,023 INFO L225 Difference]: With dead ends: 1077 [2024-11-19 00:38:45,023 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 00:38:45,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:38:45,025 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 188 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:45,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1969 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 00:38:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 00:38:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 599. [2024-11-19 00:38:45,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 495 states have (on average 1.2424242424242424) internal successors, (615), 503 states have internal predecessors, (615), 87 states have call successors, (87), 16 states have call predecessors, (87), 16 states have return successors, (87), 79 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-19 00:38:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 789 transitions. [2024-11-19 00:38:45,093 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 789 transitions. Word has length 147 [2024-11-19 00:38:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:45,094 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 789 transitions. [2024-11-19 00:38:45,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 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) [2024-11-19 00:38:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 789 transitions. [2024-11-19 00:38:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:38:45,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:45,096 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] [2024-11-19 00:38:45,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:38:45,096 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:45,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:45,097 INFO L85 PathProgramCache]: Analyzing trace with hash 781233282, now seen corresponding path program 1 times [2024-11-19 00:38:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:45,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869169081] [2024-11-19 00:38:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:45,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:45,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869169081] [2024-11-19 00:38:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869169081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:45,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966273463] [2024-11-19 00:38:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:45,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:45,955 INFO L87 Difference]: Start difference. First operand 599 states and 789 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 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) [2024-11-19 00:38:46,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:46,568 INFO L93 Difference]: Finished difference Result 1308 states and 1733 transitions. [2024-11-19 00:38:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:38:46,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 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 148 [2024-11-19 00:38:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:46,575 INFO L225 Difference]: With dead ends: 1308 [2024-11-19 00:38:46,575 INFO L226 Difference]: Without dead ends: 721 [2024-11-19 00:38:46,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:38:46,579 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 104 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:46,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1195 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:38:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-19 00:38:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 696. [2024-11-19 00:38:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2521739130434784) internal successors, (720), 584 states have internal predecessors, (720), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:38:46,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 924 transitions. [2024-11-19 00:38:46,653 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 924 transitions. Word has length 148 [2024-11-19 00:38:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:46,654 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 924 transitions. [2024-11-19 00:38:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 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) [2024-11-19 00:38:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 924 transitions. [2024-11-19 00:38:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:38:46,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:46,657 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] [2024-11-19 00:38:46,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:38:46,657 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:46,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1132673159, now seen corresponding path program 1 times [2024-11-19 00:38:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816840414] [2024-11-19 00:38:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:46,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:46,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:46,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816840414] [2024-11-19 00:38:46,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816840414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:46,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:46,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:38:46,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779118662] [2024-11-19 00:38:46,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:46,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:38:46,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:46,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:38:46,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:38:46,852 INFO L87 Difference]: Start difference. First operand 696 states and 924 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) [2024-11-19 00:38:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:46,984 INFO L93 Difference]: Finished difference Result 1374 states and 1827 transitions. [2024-11-19 00:38:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:38:46,984 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 [2024-11-19 00:38:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:46,989 INFO L225 Difference]: With dead ends: 1374 [2024-11-19 00:38:46,989 INFO L226 Difference]: Without dead ends: 698 [2024-11-19 00:38:46,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:46,993 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 63 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:46,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 585 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-19 00:38:47,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-19 00:38:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.2504347826086957) internal successors, (719), 584 states have internal predecessors, (719), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:38:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 923 transitions. [2024-11-19 00:38:47,069 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 923 transitions. Word has length 148 [2024-11-19 00:38:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:47,070 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 923 transitions. [2024-11-19 00:38:47,070 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) [2024-11-19 00:38:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 923 transitions. [2024-11-19 00:38:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:38:47,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:47,072 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] [2024-11-19 00:38:47,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:38:47,073 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1634908125, now seen corresponding path program 1 times [2024-11-19 00:38:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:47,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138519378] [2024-11-19 00:38:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:47,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:47,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:47,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138519378] [2024-11-19 00:38:47,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138519378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:47,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:47,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:38:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950963213] [2024-11-19 00:38:47,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:47,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:38:47,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:47,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:38:47,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:38:47,255 INFO L87 Difference]: Start difference. First operand 696 states and 923 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) [2024-11-19 00:38:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:47,403 INFO L93 Difference]: Finished difference Result 1374 states and 1825 transitions. [2024-11-19 00:38:47,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:38:47,405 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 [2024-11-19 00:38:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:47,409 INFO L225 Difference]: With dead ends: 1374 [2024-11-19 00:38:47,409 INFO L226 Difference]: Without dead ends: 698 [2024-11-19 00:38:47,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:47,411 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 67 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:47,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 580 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-19 00:38:47,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-19 00:38:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 575 states have (on average 1.248695652173913) internal successors, (718), 584 states have internal predecessors, (718), 102 states have call successors, (102), 18 states have call predecessors, (102), 18 states have return successors, (102), 93 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:38:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 922 transitions. [2024-11-19 00:38:47,488 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 922 transitions. Word has length 148 [2024-11-19 00:38:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:47,489 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 922 transitions. [2024-11-19 00:38:47,489 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) [2024-11-19 00:38:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 922 transitions. [2024-11-19 00:38:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:38:47,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:47,491 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] [2024-11-19 00:38:47,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:38:47,491 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:47,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:47,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1071711269, now seen corresponding path program 1 times [2024-11-19 00:38:47,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:47,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511844405] [2024-11-19 00:38:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:47,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:47,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511844405] [2024-11-19 00:38:47,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511844405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:47,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:47,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:38:47,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771603664] [2024-11-19 00:38:47,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:47,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:38:47,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:47,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:38:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:38:47,688 INFO L87 Difference]: Start difference. First operand 696 states and 922 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) [2024-11-19 00:38:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:47,829 INFO L93 Difference]: Finished difference Result 1372 states and 1818 transitions. [2024-11-19 00:38:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:38:47,830 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 [2024-11-19 00:38:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:47,834 INFO L225 Difference]: With dead ends: 1372 [2024-11-19 00:38:47,834 INFO L226 Difference]: Without dead ends: 696 [2024-11-19 00:38:47,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:47,836 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 46 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:47,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 639 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:47,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-19 00:38:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 677. [2024-11-19 00:38:47,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 561 states have (on average 1.249554367201426) internal successors, (701), 569 states have internal predecessors, (701), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:38:47,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 897 transitions. [2024-11-19 00:38:47,901 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 897 transitions. Word has length 148 [2024-11-19 00:38:47,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:47,901 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 897 transitions. [2024-11-19 00:38:47,902 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) [2024-11-19 00:38:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 897 transitions. [2024-11-19 00:38:47,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 00:38:47,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:47,904 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] [2024-11-19 00:38:47,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:38:47,905 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:47,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:47,905 INFO L85 PathProgramCache]: Analyzing trace with hash 239277608, now seen corresponding path program 1 times [2024-11-19 00:38:47,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:47,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065389499] [2024-11-19 00:38:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:47,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:49,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:49,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065389499] [2024-11-19 00:38:49,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065389499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:49,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:49,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:38:49,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933255504] [2024-11-19 00:38:49,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:49,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:38:49,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:49,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:38:49,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:38:49,459 INFO L87 Difference]: Start difference. First operand 677 states and 897 transitions. Second operand has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 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) [2024-11-19 00:38:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:50,251 INFO L93 Difference]: Finished difference Result 1345 states and 1782 transitions. [2024-11-19 00:38:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:38:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 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 [2024-11-19 00:38:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:50,256 INFO L225 Difference]: With dead ends: 1345 [2024-11-19 00:38:50,256 INFO L226 Difference]: Without dead ends: 671 [2024-11-19 00:38:50,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:38:50,258 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 105 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:50,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1376 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:38:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-19 00:38:50,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 659. [2024-11-19 00:38:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 543 states have (on average 1.2486187845303867) internal successors, (678), 551 states have internal predecessors, (678), 98 states have call successors, (98), 17 states have call predecessors, (98), 17 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:38:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 874 transitions. [2024-11-19 00:38:50,331 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 874 transitions. Word has length 148 [2024-11-19 00:38:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:50,331 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 874 transitions. [2024-11-19 00:38:50,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.0) internal successors, (56), 11 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) [2024-11-19 00:38:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 874 transitions. [2024-11-19 00:38:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:38:50,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:50,335 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] [2024-11-19 00:38:50,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:38:50,335 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:50,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -365804597, now seen corresponding path program 1 times [2024-11-19 00:38:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703128593] [2024-11-19 00:38:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:50,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:50,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703128593] [2024-11-19 00:38:50,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703128593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:50,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:50,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:50,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300551253] [2024-11-19 00:38:50,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:50,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:50,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:50,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:50,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:50,623 INFO L87 Difference]: Start difference. First operand 659 states and 874 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-19 00:38:50,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:50,803 INFO L93 Difference]: Finished difference Result 1311 states and 1730 transitions. [2024-11-19 00:38:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:38:50,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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 149 [2024-11-19 00:38:50,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:50,808 INFO L225 Difference]: With dead ends: 1311 [2024-11-19 00:38:50,808 INFO L226 Difference]: Without dead ends: 655 [2024-11-19 00:38:50,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:38:50,810 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 68 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:50,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 826 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:38:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-19 00:38:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 619. [2024-11-19 00:38:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 511 states have (on average 1.2289628180039138) internal successors, (628), 519 states have internal predecessors, (628), 89 states have call successors, (89), 18 states have call predecessors, (89), 18 states have return successors, (89), 81 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-19 00:38:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 806 transitions. [2024-11-19 00:38:50,875 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 806 transitions. Word has length 149 [2024-11-19 00:38:50,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:50,875 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 806 transitions. [2024-11-19 00:38:50,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-19 00:38:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 806 transitions. [2024-11-19 00:38:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 00:38:50,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:50,877 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] [2024-11-19 00:38:50,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:38:50,878 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:50,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1711229009, now seen corresponding path program 1 times [2024-11-19 00:38:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922416303] [2024-11-19 00:38:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:50,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:51,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:51,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922416303] [2024-11-19 00:38:51,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922416303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:51,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:38:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153594213] [2024-11-19 00:38:51,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:51,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:38:51,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:51,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:38:51,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:38:51,557 INFO L87 Difference]: Start difference. First operand 619 states and 806 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-11-19 00:38:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:52,072 INFO L93 Difference]: Finished difference Result 1523 states and 1987 transitions. [2024-11-19 00:38:52,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:38:52,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2024-11-19 00:38:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:52,080 INFO L225 Difference]: With dead ends: 1523 [2024-11-19 00:38:52,081 INFO L226 Difference]: Without dead ends: 907 [2024-11-19 00:38:52,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:38:52,083 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 99 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:52,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 882 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:38:52,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2024-11-19 00:38:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 903. [2024-11-19 00:38:52,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 713 states have (on average 1.20617110799439) internal successors, (860), 723 states have internal predecessors, (860), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:38:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1176 transitions. [2024-11-19 00:38:52,188 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1176 transitions. Word has length 149 [2024-11-19 00:38:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:52,188 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1176 transitions. [2024-11-19 00:38:52,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2024-11-19 00:38:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1176 transitions. [2024-11-19 00:38:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:38:52,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:52,191 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] [2024-11-19 00:38:52,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:38:52,191 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -823684889, now seen corresponding path program 1 times [2024-11-19 00:38:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928906344] [2024-11-19 00:38:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:53,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:53,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928906344] [2024-11-19 00:38:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928906344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:53,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:53,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 00:38:53,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147033138] [2024-11-19 00:38:53,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:53,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 00:38:53,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:53,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 00:38:53,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:38:53,828 INFO L87 Difference]: Start difference. First operand 903 states and 1176 transitions. Second operand has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-11-19 00:38:54,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:54,868 INFO L93 Difference]: Finished difference Result 1988 states and 2591 transitions. [2024-11-19 00:38:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:38:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 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 150 [2024-11-19 00:38:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:54,875 INFO L225 Difference]: With dead ends: 1988 [2024-11-19 00:38:54,876 INFO L226 Difference]: Without dead ends: 1088 [2024-11-19 00:38:54,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:38:54,879 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 98 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:54,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1203 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:38:54,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-11-19 00:38:54,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 928. [2024-11-19 00:38:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 738 states have (on average 1.2127371273712737) internal successors, (895), 748 states have internal predecessors, (895), 158 states have call successors, (158), 31 states have call predecessors, (158), 31 states have return successors, (158), 148 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:38:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1211 transitions. [2024-11-19 00:38:54,990 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1211 transitions. Word has length 150 [2024-11-19 00:38:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:54,990 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1211 transitions. [2024-11-19 00:38:54,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.833333333333333) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-11-19 00:38:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1211 transitions. [2024-11-19 00:38:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:38:54,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:54,993 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] [2024-11-19 00:38:54,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:38:54,993 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:54,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1477137701, now seen corresponding path program 1 times [2024-11-19 00:38:54,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:54,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200221218] [2024-11-19 00:38:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:55,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200221218] [2024-11-19 00:38:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200221218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:55,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:55,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:55,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023516022] [2024-11-19 00:38:55,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:55,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:55,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:55,306 INFO L87 Difference]: Start difference. First operand 928 states and 1211 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2024-11-19 00:38:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:55,788 INFO L93 Difference]: Finished difference Result 2154 states and 2813 transitions. [2024-11-19 00:38:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:38:55,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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 [2024-11-19 00:38:55,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:55,795 INFO L225 Difference]: With dead ends: 2154 [2024-11-19 00:38:55,795 INFO L226 Difference]: Without dead ends: 1229 [2024-11-19 00:38:55,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:38:55,798 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 85 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:55,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 466 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:38:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-19 00:38:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1225. [2024-11-19 00:38:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 965 states have (on average 1.2041450777202072) internal successors, (1162), 980 states have internal predecessors, (1162), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-19 00:38:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1598 transitions. [2024-11-19 00:38:55,936 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1598 transitions. Word has length 150 [2024-11-19 00:38:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:55,936 INFO L471 AbstractCegarLoop]: Abstraction has 1225 states and 1598 transitions. [2024-11-19 00:38:55,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2024-11-19 00:38:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1598 transitions. [2024-11-19 00:38:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:38:55,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:55,939 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] [2024-11-19 00:38:55,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:38:55,939 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash 197274023, now seen corresponding path program 1 times [2024-11-19 00:38:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818810325] [2024-11-19 00:38:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:56,736 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:56,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818810325] [2024-11-19 00:38:56,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818810325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:56,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:56,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:38:56,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332878561] [2024-11-19 00:38:56,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:56,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:38:56,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:56,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:38:56,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:38:56,738 INFO L87 Difference]: Start difference. First operand 1225 states and 1598 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 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) [2024-11-19 00:38:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:57,437 INFO L93 Difference]: Finished difference Result 2692 states and 3515 transitions. [2024-11-19 00:38:57,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:38:57,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 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 [2024-11-19 00:38:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:57,446 INFO L225 Difference]: With dead ends: 2692 [2024-11-19 00:38:57,447 INFO L226 Difference]: Without dead ends: 1487 [2024-11-19 00:38:57,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:38:57,451 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 90 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:57,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1389 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:38:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-11-19 00:38:57,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1229. [2024-11-19 00:38:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 969 states have (on average 1.2033023735810113) internal successors, (1166), 984 states have internal predecessors, (1166), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-19 00:38:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1602 transitions. [2024-11-19 00:38:57,604 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1602 transitions. Word has length 150 [2024-11-19 00:38:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:57,605 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1602 transitions. [2024-11-19 00:38:57,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 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) [2024-11-19 00:38:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1602 transitions. [2024-11-19 00:38:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:38:57,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:57,607 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] [2024-11-19 00:38:57,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:38:57,608 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:57,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2046485093, now seen corresponding path program 1 times [2024-11-19 00:38:57,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:57,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689908665] [2024-11-19 00:38:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:57,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:38:57,931 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:38:57,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:38:57,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689908665] [2024-11-19 00:38:57,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689908665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:38:57,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:38:57,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:38:57,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934469299] [2024-11-19 00:38:57,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:38:57,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:38:57,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:38:57,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:38:57,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:57,933 INFO L87 Difference]: Start difference. First operand 1229 states and 1602 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) [2024-11-19 00:38:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:38:58,491 INFO L93 Difference]: Finished difference Result 2995 states and 3918 transitions. [2024-11-19 00:38:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:38:58,492 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 [2024-11-19 00:38:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:38:58,501 INFO L225 Difference]: With dead ends: 2995 [2024-11-19 00:38:58,501 INFO L226 Difference]: Without dead ends: 1786 [2024-11-19 00:38:58,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:38:58,505 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 104 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:38:58,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 593 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:38:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-19 00:38:58,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1252. [2024-11-19 00:38:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 992 states have (on average 1.2116935483870968) internal successors, (1202), 1007 states have internal predecessors, (1202), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-19 00:38:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1638 transitions. [2024-11-19 00:38:58,667 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1638 transitions. Word has length 150 [2024-11-19 00:38:58,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:38:58,670 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1638 transitions. [2024-11-19 00:38:58,670 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) [2024-11-19 00:38:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1638 transitions. [2024-11-19 00:38:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:38:58,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:38:58,672 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] [2024-11-19 00:38:58,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:38:58,673 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:38:58,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:38:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2108524707, now seen corresponding path program 1 times [2024-11-19 00:38:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:38:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125882733] [2024-11-19 00:38:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:38:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:38:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:02,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:02,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125882733] [2024-11-19 00:39:02,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125882733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:02,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:02,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 00:39:02,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851321776] [2024-11-19 00:39:02,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:02,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 00:39:02,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 00:39:02,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:39:02,637 INFO L87 Difference]: Start difference. First operand 1252 states and 1638 transitions. Second operand has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 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) [2024-11-19 00:39:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:10,250 INFO L93 Difference]: Finished difference Result 2772 states and 3632 transitions. [2024-11-19 00:39:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:39:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 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 150 [2024-11-19 00:39:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:10,260 INFO L225 Difference]: With dead ends: 2772 [2024-11-19 00:39:10,260 INFO L226 Difference]: Without dead ends: 1540 [2024-11-19 00:39:10,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:39:10,268 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 190 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:10,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1866 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-19 00:39:10,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-19 00:39:10,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1268. [2024-11-19 00:39:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1008 states have (on average 1.2142857142857142) internal successors, (1224), 1023 states have internal predecessors, (1224), 218 states have call successors, (218), 41 states have call predecessors, (218), 41 states have return successors, (218), 203 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-19 00:39:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1660 transitions. [2024-11-19 00:39:10,443 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1660 transitions. Word has length 150 [2024-11-19 00:39:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:10,443 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1660 transitions. [2024-11-19 00:39:10,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 18 states have internal predecessors, (58), 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) [2024-11-19 00:39:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1660 transitions. [2024-11-19 00:39:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:10,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:10,449 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] [2024-11-19 00:39:10,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 00:39:10,450 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:10,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:10,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1165374235, now seen corresponding path program 1 times [2024-11-19 00:39:10,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:10,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410889797] [2024-11-19 00:39:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:10,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:11,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:11,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410889797] [2024-11-19 00:39:11,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410889797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:11,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:11,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:39:11,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108507074] [2024-11-19 00:39:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:11,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:39:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:11,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:39:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:39:11,064 INFO L87 Difference]: Start difference. First operand 1268 states and 1660 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) [2024-11-19 00:39:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:11,744 INFO L93 Difference]: Finished difference Result 2665 states and 3486 transitions. [2024-11-19 00:39:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:39:11,745 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 [2024-11-19 00:39:11,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:11,754 INFO L225 Difference]: With dead ends: 2665 [2024-11-19 00:39:11,754 INFO L226 Difference]: Without dead ends: 1417 [2024-11-19 00:39:11,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:39:11,760 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 95 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:11,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 900 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:39:11,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2024-11-19 00:39:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1312. [2024-11-19 00:39:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1047 states have (on average 1.2082139446036295) internal successors, (1265), 1063 states have internal predecessors, (1265), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-19 00:39:11,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1709 transitions. [2024-11-19 00:39:11,977 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1709 transitions. Word has length 150 [2024-11-19 00:39:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:11,978 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1709 transitions. [2024-11-19 00:39:11,978 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) [2024-11-19 00:39:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1709 transitions. [2024-11-19 00:39:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:11,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:11,980 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] [2024-11-19 00:39:11,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 00:39:11,981 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:11,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1368794139, now seen corresponding path program 1 times [2024-11-19 00:39:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:11,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604956847] [2024-11-19 00:39:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:11,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:13,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:13,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604956847] [2024-11-19 00:39:13,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604956847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:13,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:13,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 00:39:13,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805318391] [2024-11-19 00:39:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:13,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:39:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:39:13,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:39:13,703 INFO L87 Difference]: Start difference. First operand 1312 states and 1709 transitions. Second operand has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-11-19 00:39:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:15,708 INFO L93 Difference]: Finished difference Result 2870 states and 3742 transitions. [2024-11-19 00:39:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:39:15,709 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 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 150 [2024-11-19 00:39:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:15,717 INFO L225 Difference]: With dead ends: 2870 [2024-11-19 00:39:15,718 INFO L226 Difference]: Without dead ends: 1578 [2024-11-19 00:39:15,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:39:15,722 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 173 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:15,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2559 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 00:39:15,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-19 00:39:15,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1310. [2024-11-19 00:39:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1045 states have (on average 1.2066985645933015) internal successors, (1261), 1061 states have internal predecessors, (1261), 222 states have call successors, (222), 42 states have call predecessors, (222), 42 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-11-19 00:39:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1705 transitions. [2024-11-19 00:39:15,912 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1705 transitions. Word has length 150 [2024-11-19 00:39:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:15,913 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 1705 transitions. [2024-11-19 00:39:15,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.461538461538462) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-11-19 00:39:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1705 transitions. [2024-11-19 00:39:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:15,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:15,915 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] [2024-11-19 00:39:15,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 00:39:15,915 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:15,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash 562518505, now seen corresponding path program 1 times [2024-11-19 00:39:15,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:15,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226076205] [2024-11-19 00:39:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:16,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:16,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226076205] [2024-11-19 00:39:16,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226076205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:16,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:16,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:39:16,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394824764] [2024-11-19 00:39:16,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:16,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:39:16,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:39:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:39:16,729 INFO L87 Difference]: Start difference. First operand 1310 states and 1705 transitions. Second operand has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 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) [2024-11-19 00:39:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:17,620 INFO L93 Difference]: Finished difference Result 2930 states and 3816 transitions. [2024-11-19 00:39:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:39:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 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 [2024-11-19 00:39:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:17,631 INFO L225 Difference]: With dead ends: 2930 [2024-11-19 00:39:17,631 INFO L226 Difference]: Without dead ends: 1640 [2024-11-19 00:39:17,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:39:17,636 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 243 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:17,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 727 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:39:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-19 00:39:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1019. [2024-11-19 00:39:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2164449818621523) internal successors, (1006), 838 states have internal predecessors, (1006), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:39:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1322 transitions. [2024-11-19 00:39:17,833 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1322 transitions. Word has length 150 [2024-11-19 00:39:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:17,833 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1322 transitions. [2024-11-19 00:39:17,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 10 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) [2024-11-19 00:39:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1322 transitions. [2024-11-19 00:39:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:17,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:17,835 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] [2024-11-19 00:39:17,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 00:39:17,836 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:17,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:17,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1583477417, now seen corresponding path program 1 times [2024-11-19 00:39:17,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:17,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699460771] [2024-11-19 00:39:17,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:17,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:18,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:18,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699460771] [2024-11-19 00:39:18,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699460771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:18,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:18,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:39:18,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404788581] [2024-11-19 00:39:18,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:18,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:39:18,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:18,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:39:18,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:39:18,344 INFO L87 Difference]: Start difference. First operand 1019 states and 1322 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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) [2024-11-19 00:39:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:19,041 INFO L93 Difference]: Finished difference Result 2149 states and 2792 transitions. [2024-11-19 00:39:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:39:19,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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 [2024-11-19 00:39:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:19,047 INFO L225 Difference]: With dead ends: 2149 [2024-11-19 00:39:19,048 INFO L226 Difference]: Without dead ends: 1150 [2024-11-19 00:39:19,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:39:19,050 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 93 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:19,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1303 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:39:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-19 00:39:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1019. [2024-11-19 00:39:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 827 states have (on average 1.2140266021765418) internal successors, (1004), 838 states have internal predecessors, (1004), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:39:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1320 transitions. [2024-11-19 00:39:19,206 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1320 transitions. Word has length 150 [2024-11-19 00:39:19,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:19,207 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1320 transitions. [2024-11-19 00:39:19,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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) [2024-11-19 00:39:19,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1320 transitions. [2024-11-19 00:39:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:19,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:19,209 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] [2024-11-19 00:39:19,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 00:39:19,210 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:19,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash 781373223, now seen corresponding path program 1 times [2024-11-19 00:39:19,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489345178] [2024-11-19 00:39:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:19,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:20,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:20,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489345178] [2024-11-19 00:39:20,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489345178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:20,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:20,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:39:20,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619816691] [2024-11-19 00:39:20,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:20,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:39:20,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:20,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:39:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:39:20,488 INFO L87 Difference]: Start difference. First operand 1019 states and 1320 transitions. Second operand has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-11-19 00:39:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:21,563 INFO L93 Difference]: Finished difference Result 2135 states and 2769 transitions. [2024-11-19 00:39:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:39:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 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 150 [2024-11-19 00:39:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:21,568 INFO L225 Difference]: With dead ends: 2135 [2024-11-19 00:39:21,569 INFO L226 Difference]: Without dead ends: 1136 [2024-11-19 00:39:21,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:39:21,571 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 256 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:21,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1154 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:39:21,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-19 00:39:21,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1011. [2024-11-19 00:39:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 819 states have (on average 1.2063492063492063) internal successors, (988), 830 states have internal predecessors, (988), 158 states have call successors, (158), 33 states have call predecessors, (158), 33 states have return successors, (158), 147 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:39:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1304 transitions. [2024-11-19 00:39:21,748 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1304 transitions. Word has length 150 [2024-11-19 00:39:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:21,749 INFO L471 AbstractCegarLoop]: Abstraction has 1011 states and 1304 transitions. [2024-11-19 00:39:21,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.8) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-11-19 00:39:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1304 transitions. [2024-11-19 00:39:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:21,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:21,751 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] [2024-11-19 00:39:21,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 00:39:21,751 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:21,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:21,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1681350053, now seen corresponding path program 1 times [2024-11-19 00:39:21,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:21,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051821620] [2024-11-19 00:39:21,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:21,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:22,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:22,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051821620] [2024-11-19 00:39:22,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051821620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:22,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:22,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:39:22,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361905681] [2024-11-19 00:39:22,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:22,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:39:22,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:22,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:39:22,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:39:22,218 INFO L87 Difference]: Start difference. First operand 1011 states and 1304 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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) [2024-11-19 00:39:22,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:22,839 INFO L93 Difference]: Finished difference Result 2137 states and 2755 transitions. [2024-11-19 00:39:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:39:22,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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 [2024-11-19 00:39:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:22,845 INFO L225 Difference]: With dead ends: 2137 [2024-11-19 00:39:22,845 INFO L226 Difference]: Without dead ends: 1146 [2024-11-19 00:39:22,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:39:22,848 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 200 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:22,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1086 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:39:22,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-19 00:39:22,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 720. [2024-11-19 00:39:22,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2190635451505016) internal successors, (729), 604 states have internal predecessors, (729), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 925 transitions. [2024-11-19 00:39:22,990 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 925 transitions. Word has length 150 [2024-11-19 00:39:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:22,990 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 925 transitions. [2024-11-19 00:39:22,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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) [2024-11-19 00:39:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 925 transitions. [2024-11-19 00:39:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:22,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:22,992 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] [2024-11-19 00:39:22,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 00:39:22,992 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:22,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:22,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1477930149, now seen corresponding path program 1 times [2024-11-19 00:39:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745417621] [2024-11-19 00:39:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:23,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745417621] [2024-11-19 00:39:23,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745417621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:23,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:23,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:39:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259627074] [2024-11-19 00:39:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:23,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:39:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:39:23,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:39:23,729 INFO L87 Difference]: Start difference. First operand 720 states and 925 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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) [2024-11-19 00:39:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:24,349 INFO L93 Difference]: Finished difference Result 1585 states and 2036 transitions. [2024-11-19 00:39:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:39:24,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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 [2024-11-19 00:39:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:24,355 INFO L225 Difference]: With dead ends: 1585 [2024-11-19 00:39:24,355 INFO L226 Difference]: Without dead ends: 864 [2024-11-19 00:39:24,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:39:24,357 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 94 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:24,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 991 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:39:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-19 00:39:24,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 716. [2024-11-19 00:39:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2171717171717171) internal successors, (723), 600 states have internal predecessors, (723), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:24,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 919 transitions. [2024-11-19 00:39:24,470 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 919 transitions. Word has length 150 [2024-11-19 00:39:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:24,471 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 919 transitions. [2024-11-19 00:39:24,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 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) [2024-11-19 00:39:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 919 transitions. [2024-11-19 00:39:24,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:24,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:24,473 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] [2024-11-19 00:39:24,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 00:39:24,473 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:24,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1795968793, now seen corresponding path program 1 times [2024-11-19 00:39:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380420431] [2024-11-19 00:39:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:24,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:24,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380420431] [2024-11-19 00:39:24,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380420431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:24,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:24,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:39:24,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353252789] [2024-11-19 00:39:24,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:24,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:39:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:24,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:39:24,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:39:24,865 INFO L87 Difference]: Start difference. First operand 716 states and 919 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 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) [2024-11-19 00:39:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:25,326 INFO L93 Difference]: Finished difference Result 1577 states and 2024 transitions. [2024-11-19 00:39:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:39:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 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 [2024-11-19 00:39:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:25,332 INFO L225 Difference]: With dead ends: 1577 [2024-11-19 00:39:25,332 INFO L226 Difference]: Without dead ends: 864 [2024-11-19 00:39:25,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:39:25,334 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 92 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:25,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 941 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:39:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-19 00:39:25,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 704. [2024-11-19 00:39:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 582 states have (on average 1.2147766323024054) internal successors, (707), 588 states have internal predecessors, (707), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 903 transitions. [2024-11-19 00:39:25,459 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 903 transitions. Word has length 150 [2024-11-19 00:39:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:25,459 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 903 transitions. [2024-11-19 00:39:25,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 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) [2024-11-19 00:39:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 903 transitions. [2024-11-19 00:39:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 00:39:25,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:25,461 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] [2024-11-19 00:39:25,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 00:39:25,461 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:25,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -975777600, now seen corresponding path program 1 times [2024-11-19 00:39:25,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502707836] [2024-11-19 00:39:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:26,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:26,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:26,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502707836] [2024-11-19 00:39:26,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502707836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:26,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:26,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:39:26,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654025306] [2024-11-19 00:39:26,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:26,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:39:26,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:26,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:39:26,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:39:26,002 INFO L87 Difference]: Start difference. First operand 704 states and 903 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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) [2024-11-19 00:39:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:26,594 INFO L93 Difference]: Finished difference Result 1459 states and 1870 transitions. [2024-11-19 00:39:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:39:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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 [2024-11-19 00:39:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:26,599 INFO L225 Difference]: With dead ends: 1459 [2024-11-19 00:39:26,600 INFO L226 Difference]: Without dead ends: 758 [2024-11-19 00:39:26,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:39:26,601 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 93 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:26,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1489 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:39:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-19 00:39:26,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 716. [2024-11-19 00:39:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 594 states have (on average 1.2104377104377104) internal successors, (719), 600 states have internal predecessors, (719), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 915 transitions. [2024-11-19 00:39:26,725 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 915 transitions. Word has length 150 [2024-11-19 00:39:26,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:26,726 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 915 transitions. [2024-11-19 00:39:26,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 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) [2024-11-19 00:39:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 915 transitions. [2024-11-19 00:39:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:39:26,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:26,728 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] [2024-11-19 00:39:26,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 00:39:26,729 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:26,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash 818719858, now seen corresponding path program 1 times [2024-11-19 00:39:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:26,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64933104] [2024-11-19 00:39:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:27,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:27,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64933104] [2024-11-19 00:39:27,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64933104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:27,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:27,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:39:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160640417] [2024-11-19 00:39:27,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:27,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:39:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:39:27,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:39:27,939 INFO L87 Difference]: Start difference. First operand 716 states and 915 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-11-19 00:39:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:29,023 INFO L93 Difference]: Finished difference Result 1730 states and 2216 transitions. [2024-11-19 00:39:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:39:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 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 151 [2024-11-19 00:39:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:29,029 INFO L225 Difference]: With dead ends: 1730 [2024-11-19 00:39:29,029 INFO L226 Difference]: Without dead ends: 1017 [2024-11-19 00:39:29,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:39:29,031 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 178 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:29,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1463 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:39:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-19 00:39:29,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 720. [2024-11-19 00:39:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 598 states have (on average 1.2157190635451505) internal successors, (727), 604 states have internal predecessors, (727), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 923 transitions. [2024-11-19 00:39:29,196 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 923 transitions. Word has length 151 [2024-11-19 00:39:29,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:29,196 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 923 transitions. [2024-11-19 00:39:29,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-11-19 00:39:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 923 transitions. [2024-11-19 00:39:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:39:29,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:29,198 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] [2024-11-19 00:39:29,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 00:39:29,198 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:29,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1241421684, now seen corresponding path program 1 times [2024-11-19 00:39:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514853610] [2024-11-19 00:39:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:30,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:30,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514853610] [2024-11-19 00:39:30,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514853610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:30,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:30,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:39:30,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151324846] [2024-11-19 00:39:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:30,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:39:30,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:30,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:39:30,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:39:30,182 INFO L87 Difference]: Start difference. First operand 720 states and 923 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 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) [2024-11-19 00:39:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:30,945 INFO L93 Difference]: Finished difference Result 1571 states and 2016 transitions. [2024-11-19 00:39:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:39:30,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 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 151 [2024-11-19 00:39:30,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:30,950 INFO L225 Difference]: With dead ends: 1571 [2024-11-19 00:39:30,950 INFO L226 Difference]: Without dead ends: 854 [2024-11-19 00:39:30,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:39:30,952 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 87 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:30,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1542 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:39:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-19 00:39:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 706. [2024-11-19 00:39:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 584 states have (on average 1.2106164383561644) internal successors, (707), 590 states have internal predecessors, (707), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 903 transitions. [2024-11-19 00:39:31,110 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 903 transitions. Word has length 151 [2024-11-19 00:39:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:31,110 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 903 transitions. [2024-11-19 00:39:31,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 13 states have internal predecessors, (59), 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) [2024-11-19 00:39:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 903 transitions. [2024-11-19 00:39:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:39:31,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:31,112 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] [2024-11-19 00:39:31,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 00:39:31,112 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:31,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1377799030, now seen corresponding path program 1 times [2024-11-19 00:39:31,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:31,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698671886] [2024-11-19 00:39:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:31,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:31,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698671886] [2024-11-19 00:39:31,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698671886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:31,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:31,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:39:31,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503235781] [2024-11-19 00:39:31,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:31,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:39:31,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:31,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:39:31,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:39:31,330 INFO L87 Difference]: Start difference. First operand 706 states and 903 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) [2024-11-19 00:39:31,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:31,550 INFO L93 Difference]: Finished difference Result 1394 states and 1785 transitions. [2024-11-19 00:39:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:39:31,550 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 [2024-11-19 00:39:31,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:31,554 INFO L225 Difference]: With dead ends: 1394 [2024-11-19 00:39:31,554 INFO L226 Difference]: Without dead ends: 691 [2024-11-19 00:39:31,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:39:31,556 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 117 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:31,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 574 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:39:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-19 00:39:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 689. [2024-11-19 00:39:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 567 states have (on average 1.2081128747795415) internal successors, (685), 573 states have internal predecessors, (685), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 881 transitions. [2024-11-19 00:39:31,710 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 881 transitions. Word has length 151 [2024-11-19 00:39:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:31,710 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 881 transitions. [2024-11-19 00:39:31,710 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) [2024-11-19 00:39:31,711 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 881 transitions. [2024-11-19 00:39:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 00:39:31,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:31,712 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] [2024-11-19 00:39:31,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 00:39:31,712 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:31,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1202624886, now seen corresponding path program 1 times [2024-11-19 00:39:31,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:31,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520171609] [2024-11-19 00:39:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:31,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:39:31,923 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 00:39:31,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:39:31,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520171609] [2024-11-19 00:39:31,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520171609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:39:31,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:39:31,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:39:31,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659309870] [2024-11-19 00:39:31,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:39:31,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:39:31,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:39:31,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:39:31,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:39:31,927 INFO L87 Difference]: Start difference. First operand 689 states and 881 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) [2024-11-19 00:39:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:39:32,150 INFO L93 Difference]: Finished difference Result 1361 states and 1741 transitions. [2024-11-19 00:39:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:39:32,151 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 [2024-11-19 00:39:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:39:32,155 INFO L225 Difference]: With dead ends: 1361 [2024-11-19 00:39:32,155 INFO L226 Difference]: Without dead ends: 675 [2024-11-19 00:39:32,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:39:32,157 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:39:32,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 805 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:39:32,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-19 00:39:32,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 669. [2024-11-19 00:39:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 547 states have (on average 1.2029250457038392) internal successors, (658), 553 states have internal predecessors, (658), 98 states have call successors, (98), 23 states have call predecessors, (98), 23 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 00:39:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 854 transitions. [2024-11-19 00:39:32,295 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 854 transitions. Word has length 151 [2024-11-19 00:39:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:39:32,296 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 854 transitions. [2024-11-19 00:39:32,296 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) [2024-11-19 00:39:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 854 transitions. [2024-11-19 00:39:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 00:39:32,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:39:32,297 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] [2024-11-19 00:39:32,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 00:39:32,297 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:39:32,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:39:32,297 INFO L85 PathProgramCache]: Analyzing trace with hash 962728194, now seen corresponding path program 1 times [2024-11-19 00:39:32,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:39:32,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702165033] [2024-11-19 00:39:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:39:32,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:39:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat