./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-4.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 ebe3d6e9d03e6e5cf83180cae6564bdb73d3d5ae307bc763d1d081898bce00b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:44:14,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:44:14,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:44:14,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:44:14,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:44:14,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:44:14,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:44:14,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:44:14,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:44:14,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:44:14,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:44:14,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:44:14,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:44:14,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:44:14,969 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:44:14,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:44:14,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:44:14,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:44:14,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:44:14,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:44:14,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:44:14,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:44:14,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:44:14,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:44:14,974 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:44:14,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:44:14,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:44:14,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:44:14,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:44:14,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:44:14,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:44:14,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:44:14,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:44:14,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:44:14,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:44:14,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:44:14,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:44:14,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:44:14,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:44:14,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:44:14,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:44:14,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:44:14,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebe3d6e9d03e6e5cf83180cae6564bdb73d3d5ae307bc763d1d081898bce00b0 [2024-11-22 12:44:15,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:44:15,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:44:15,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:44:15,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:44:15,273 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:44:15,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-4.i [2024-11-22 12:44:16,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:44:16,892 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:44:16,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-4.i [2024-11-22 12:44:16,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718fd0785/564794db80ec4d5bb54e1ab6d22d4eaa/FLAGc7babe85a [2024-11-22 12:44:16,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718fd0785/564794db80ec4d5bb54e1ab6d22d4eaa [2024-11-22 12:44:16,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:44:16,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:44:16,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:44:16,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:44:16,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:44:16,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:16" (1/1) ... [2024-11-22 12:44:16,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b494ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:16, skipping insertion in model container [2024-11-22 12:44:16,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:16" (1/1) ... [2024-11-22 12:44:16,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:44:17,148 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-ap_file-4.i[916,929] [2024-11-22 12:44:17,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:44:17,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:44:17,270 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-ap_file-4.i[916,929] [2024-11-22 12:44:17,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:44:17,346 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:44:17,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17 WrapperNode [2024-11-22 12:44:17,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:44:17,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:44:17,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:44:17,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:44:17,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,464 INFO L138 Inliner]: procedures = 29, calls = 161, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2024-11-22 12:44:17,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:44:17,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:44:17,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:44:17,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:44:17,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,517 INFO L175 MemorySlicer]: Split 130 memory accesses to 6 slices as follows [2, 38, 11, 55, 12, 12]. 42 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 4, 1, 4, 2, 2]. The 15 writes are split as follows [0, 4, 1, 5, 3, 2]. [2024-11-22 12:44:17,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:44:17,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:44:17,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:44:17,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:44:17,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (1/1) ... [2024-11-22 12:44:17,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:44:17,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:17,610 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) [2024-11-22 12:44:17,614 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 [2024-11-22 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-22 12:44:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:44:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-22 12:44:17,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:44:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:44:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:44:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:44:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-22 12:44:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-22 12:44:17,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-22 12:44:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-22 12:44:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-22 12:44:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-22 12:44:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:44:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:44:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:44:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:44:17,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:44:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:44:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:44:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:44:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:44:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:44:17,868 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:44:17,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:44:18,390 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-22 12:44:18,391 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:44:18,407 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:44:18,407 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:44:18,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:18 BoogieIcfgContainer [2024-11-22 12:44:18,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:44:18,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:44:18,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:44:18,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:44:18,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:44:16" (1/3) ... [2024-11-22 12:44:18,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9e6c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:18, skipping insertion in model container [2024-11-22 12:44:18,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:17" (2/3) ... [2024-11-22 12:44:18,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9e6c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:18, skipping insertion in model container [2024-11-22 12:44:18,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:18" (3/3) ... [2024-11-22 12:44:18,418 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-4.i [2024-11-22 12:44:18,434 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:44:18,434 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:44:18,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:44:18,503 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;@2434d88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:44:18,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:44:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 12:44:18,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:18,521 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:18,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:18,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:18,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1671071366, now seen corresponding path program 1 times [2024-11-22 12:44:18,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:18,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789422419] [2024-11-22 12:44:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:18,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-22 12:44:18,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:18,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789422419] [2024-11-22 12:44:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789422419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:44:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078376108] [2024-11-22 12:44:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:18,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:18,987 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) [2024-11-22 12:44:18,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:44:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:19,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:44:19,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:44:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-22 12:44:19,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:44:19,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078376108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:19,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:44:19,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:44:19,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581164939] [2024-11-22 12:44:19,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:19,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:44:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:19,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:44:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:44:19,319 INFO L87 Difference]: Start difference. First operand has 110 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:19,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:19,347 INFO L93 Difference]: Finished difference Result 213 states and 331 transitions. [2024-11-22 12:44:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:44:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-11-22 12:44:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:19,356 INFO L225 Difference]: With dead ends: 213 [2024-11-22 12:44:19,357 INFO L226 Difference]: Without dead ends: 106 [2024-11-22 12:44:19,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:44:19,364 INFO L432 NwaCegarLoop]: 154 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, 154 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 [2024-11-22 12:44:19,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-22 12:44:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-22 12:44:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:19,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 154 transitions. [2024-11-22 12:44:19,414 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 154 transitions. Word has length 130 [2024-11-22 12:44:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:19,415 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 154 transitions. [2024-11-22 12:44:19,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 154 transitions. [2024-11-22 12:44:19,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 12:44:19,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:19,418 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:19,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:44:19,619 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 [2024-11-22 12:44:19,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:19,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1599009948, now seen corresponding path program 1 times [2024-11-22 12:44:19,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:19,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354431015] [2024-11-22 12:44:19,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:19,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:19,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354431015] [2024-11-22 12:44:19,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354431015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:19,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:19,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:44:19,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486185154] [2024-11-22 12:44:19,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:19,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:44:19,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:44:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:44:19,957 INFO L87 Difference]: Start difference. First operand 106 states and 154 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:20,012 INFO L93 Difference]: Finished difference Result 211 states and 308 transitions. [2024-11-22 12:44:20,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:44:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-11-22 12:44:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:20,015 INFO L225 Difference]: With dead ends: 211 [2024-11-22 12:44:20,015 INFO L226 Difference]: Without dead ends: 108 [2024-11-22 12:44:20,015 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 [2024-11-22 12:44:20,016 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:20,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-22 12:44:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-22 12:44:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 91 states have internal predecessors, (126), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions. [2024-11-22 12:44:20,038 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 130 [2024-11-22 12:44:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:20,040 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 156 transitions. [2024-11-22 12:44:20,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions. [2024-11-22 12:44:20,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 12:44:20,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:20,044 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:20,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:44:20,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:20,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1627510238, now seen corresponding path program 1 times [2024-11-22 12:44:20,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:20,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893892169] [2024-11-22 12:44:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:20,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:20,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893892169] [2024-11-22 12:44:20,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893892169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:20,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:20,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:44:20,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548180720] [2024-11-22 12:44:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:20,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:44:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:20,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:44:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:44:20,305 INFO L87 Difference]: Start difference. First operand 108 states and 156 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:20,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:20,347 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2024-11-22 12:44:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:44:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-22 12:44:20,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:20,352 INFO L225 Difference]: With dead ends: 216 [2024-11-22 12:44:20,352 INFO L226 Difference]: Without dead ends: 111 [2024-11-22 12:44:20,353 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 [2024-11-22 12:44:20,356 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:20,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 444 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-22 12:44:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-22 12:44:20,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2024-11-22 12:44:20,369 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 130 [2024-11-22 12:44:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:20,369 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2024-11-22 12:44:20,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2024-11-22 12:44:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 12:44:20,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:20,372 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:20,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:44:20,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:20,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1629357280, now seen corresponding path program 1 times [2024-11-22 12:44:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:20,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845228818] [2024-11-22 12:44:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:20,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:21,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:21,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845228818] [2024-11-22 12:44:21,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845228818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:21,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:21,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:44:21,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508121116] [2024-11-22 12:44:21,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:21,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:44:21,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:44:21,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:44:21,152 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:21,403 INFO L93 Difference]: Finished difference Result 298 states and 428 transitions. [2024-11-22 12:44:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:44:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-22 12:44:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:21,407 INFO L225 Difference]: With dead ends: 298 [2024-11-22 12:44:21,409 INFO L226 Difference]: Without dead ends: 191 [2024-11-22 12:44:21,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:44:21,411 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 111 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:21,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 678 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:44:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-22 12:44:21,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2024-11-22 12:44:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.3788819875776397) internal successors, (222), 162 states have internal predecessors, (222), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2024-11-22 12:44:21,439 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 130 [2024-11-22 12:44:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:21,439 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2024-11-22 12:44:21,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2024-11-22 12:44:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 12:44:21,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:21,446 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:21,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:44:21,447 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:21,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:21,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1964545438, now seen corresponding path program 1 times [2024-11-22 12:44:21,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:21,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451001444] [2024-11-22 12:44:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-22 12:44:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451001444] [2024-11-22 12:44:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451001444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:44:21,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415222537] [2024-11-22 12:44:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:21,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:21,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:21,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:44:21,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:44:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:21,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:44:21,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:44:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:21,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:44:21,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415222537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:21,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:44:21,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 12:44:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531176961] [2024-11-22 12:44:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:21,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:44:21,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:21,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:44:21,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:44:21,975 INFO L87 Difference]: Start difference. First operand 188 states and 270 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:22,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:22,003 INFO L93 Difference]: Finished difference Result 377 states and 543 transitions. [2024-11-22 12:44:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:44:22,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2024-11-22 12:44:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:22,008 INFO L225 Difference]: With dead ends: 377 [2024-11-22 12:44:22,008 INFO L226 Difference]: Without dead ends: 192 [2024-11-22 12:44:22,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:44:22,010 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:22,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:22,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-22 12:44:22,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-22 12:44:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 165 states have (on average 1.3696969696969696) internal successors, (226), 166 states have internal predecessors, (226), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 274 transitions. [2024-11-22 12:44:22,035 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 274 transitions. Word has length 130 [2024-11-22 12:44:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:22,036 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 274 transitions. [2024-11-22 12:44:22,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 274 transitions. [2024-11-22 12:44:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 12:44:22,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:22,039 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:22,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:44:22,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:22,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:22,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash -707083916, now seen corresponding path program 1 times [2024-11-22 12:44:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:22,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627920838] [2024-11-22 12:44:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-22 12:44:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:22,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627920838] [2024-11-22 12:44:22,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627920838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:44:22,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480294506] [2024-11-22 12:44:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:22,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:22,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:22,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:44:22,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:44:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:22,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:44:22,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:44:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:22,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:44:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480294506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:22,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:44:22,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-22 12:44:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772884759] [2024-11-22 12:44:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:22,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:44:22,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:22,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:44:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:44:22,754 INFO L87 Difference]: Start difference. First operand 192 states and 274 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:22,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:22,792 INFO L93 Difference]: Finished difference Result 387 states and 553 transitions. [2024-11-22 12:44:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:44:22,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 132 [2024-11-22 12:44:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:22,797 INFO L225 Difference]: With dead ends: 387 [2024-11-22 12:44:22,798 INFO L226 Difference]: Without dead ends: 198 [2024-11-22 12:44:22,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:44:22,800 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:22,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-22 12:44:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2024-11-22 12:44:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 167 states have (on average 1.3652694610778444) internal successors, (228), 168 states have internal predecessors, (228), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 276 transitions. [2024-11-22 12:44:22,813 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 276 transitions. Word has length 132 [2024-11-22 12:44:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:22,813 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 276 transitions. [2024-11-22 12:44:22,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 276 transitions. [2024-11-22 12:44:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:44:22,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:22,815 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:22,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 12:44:23,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:23,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:23,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 43564621, now seen corresponding path program 1 times [2024-11-22 12:44:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760410686] [2024-11-22 12:44:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:24,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760410686] [2024-11-22 12:44:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760410686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:24,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:24,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:44:24,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000139190] [2024-11-22 12:44:24,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:24,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:44:24,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:24,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:44:24,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:44:24,356 INFO L87 Difference]: Start difference. First operand 194 states and 276 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:25,063 INFO L93 Difference]: Finished difference Result 605 states and 862 transitions. [2024-11-22 12:44:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:44:25,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-22 12:44:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:25,067 INFO L225 Difference]: With dead ends: 605 [2024-11-22 12:44:25,068 INFO L226 Difference]: Without dead ends: 414 [2024-11-22 12:44:25,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:44:25,069 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 383 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:25,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 742 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-22 12:44:25,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 216. [2024-11-22 12:44:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 189 states have (on average 1.3703703703703705) internal successors, (259), 190 states have internal predecessors, (259), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:25,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 307 transitions. [2024-11-22 12:44:25,091 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 307 transitions. Word has length 133 [2024-11-22 12:44:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:25,091 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 307 transitions. [2024-11-22 12:44:25,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:25,092 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 307 transitions. [2024-11-22 12:44:25,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 12:44:25,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:25,093 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:25,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:44:25,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:25,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash -977503733, now seen corresponding path program 1 times [2024-11-22 12:44:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79555786] [2024-11-22 12:44:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:25,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:26,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:26,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79555786] [2024-11-22 12:44:26,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79555786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:26,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:26,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:26,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750507315] [2024-11-22 12:44:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:26,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:26,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:26,536 INFO L87 Difference]: Start difference. First operand 216 states and 307 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:27,108 INFO L93 Difference]: Finished difference Result 483 states and 686 transitions. [2024-11-22 12:44:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:44:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-11-22 12:44:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:27,110 INFO L225 Difference]: With dead ends: 483 [2024-11-22 12:44:27,111 INFO L226 Difference]: Without dead ends: 270 [2024-11-22 12:44:27,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:27,113 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 233 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:27,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 887 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:44:27,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-22 12:44:27,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 129. [2024-11-22 12:44:27,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 111 states have internal predecessors, (151), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:27,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 181 transitions. [2024-11-22 12:44:27,135 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 181 transitions. Word has length 133 [2024-11-22 12:44:27,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:27,136 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 181 transitions. [2024-11-22 12:44:27,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:27,136 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 181 transitions. [2024-11-22 12:44:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:27,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:27,137 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:27,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:44:27,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:27,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1314098681, now seen corresponding path program 1 times [2024-11-22 12:44:27,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:27,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825749604] [2024-11-22 12:44:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:27,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825749604] [2024-11-22 12:44:28,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825749604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:28,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:28,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:44:28,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647265432] [2024-11-22 12:44:28,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:28,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:44:28,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:44:28,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:44:28,093 INFO L87 Difference]: Start difference. First operand 129 states and 181 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:28,751 INFO L93 Difference]: Finished difference Result 386 states and 543 transitions. [2024-11-22 12:44:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:44:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-22 12:44:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:28,754 INFO L225 Difference]: With dead ends: 386 [2024-11-22 12:44:28,754 INFO L226 Difference]: Without dead ends: 260 [2024-11-22 12:44:28,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:44:28,756 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 378 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:28,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 795 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:28,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-22 12:44:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 134. [2024-11-22 12:44:28,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 116 states have (on average 1.3620689655172413) internal successors, (158), 116 states have internal predecessors, (158), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 12:44:28,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 188 transitions. [2024-11-22 12:44:28,774 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 188 transitions. Word has length 134 [2024-11-22 12:44:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:28,775 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 188 transitions. [2024-11-22 12:44:28,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 188 transitions. [2024-11-22 12:44:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:28,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:28,777 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:28,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:44:28,777 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:28,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:28,778 INFO L85 PathProgramCache]: Analyzing trace with hash 34235003, now seen corresponding path program 1 times [2024-11-22 12:44:28,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:28,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647077448] [2024-11-22 12:44:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:29,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647077448] [2024-11-22 12:44:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647077448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:29,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:29,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:44:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702170487] [2024-11-22 12:44:29,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:29,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:44:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:29,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:44:29,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:44:29,623 INFO L87 Difference]: Start difference. First operand 134 states and 188 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:29,955 INFO L93 Difference]: Finished difference Result 336 states and 471 transitions. [2024-11-22 12:44:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:44:29,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-22 12:44:29,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:29,958 INFO L225 Difference]: With dead ends: 336 [2024-11-22 12:44:29,958 INFO L226 Difference]: Without dead ends: 205 [2024-11-22 12:44:29,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:44:29,959 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 89 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:29,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 593 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:44:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-22 12:44:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 200. [2024-11-22 12:44:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 175 states have (on average 1.36) internal successors, (238), 176 states have internal predecessors, (238), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:29,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 280 transitions. [2024-11-22 12:44:29,990 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 280 transitions. Word has length 134 [2024-11-22 12:44:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:29,991 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 280 transitions. [2024-11-22 12:44:29,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 280 transitions. [2024-11-22 12:44:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:29,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:29,992 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:29,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:44:29,993 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:29,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:29,995 INFO L85 PathProgramCache]: Analyzing trace with hash 613206007, now seen corresponding path program 1 times [2024-11-22 12:44:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:29,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39161879] [2024-11-22 12:44:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:29,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:30,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:30,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39161879] [2024-11-22 12:44:30,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39161879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:30,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:30,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:44:30,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125193942] [2024-11-22 12:44:30,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:30,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:44:30,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:30,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:44:30,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:44:30,833 INFO L87 Difference]: Start difference. First operand 200 states and 280 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:31,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:31,263 INFO L93 Difference]: Finished difference Result 470 states and 656 transitions. [2024-11-22 12:44:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:44:31,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-22 12:44:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:31,269 INFO L225 Difference]: With dead ends: 470 [2024-11-22 12:44:31,270 INFO L226 Difference]: Without dead ends: 273 [2024-11-22 12:44:31,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:44:31,272 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 47 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:31,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 614 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:44:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-22 12:44:31,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 233. [2024-11-22 12:44:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 208 states have (on average 1.3557692307692308) internal successors, (282), 209 states have internal predecessors, (282), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 324 transitions. [2024-11-22 12:44:31,313 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 324 transitions. Word has length 134 [2024-11-22 12:44:31,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:31,315 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 324 transitions. [2024-11-22 12:44:31,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:31,315 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 324 transitions. [2024-11-22 12:44:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:31,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:31,317 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:31,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:44:31,317 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:31,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1013635886, now seen corresponding path program 1 times [2024-11-22 12:44:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:31,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440016550] [2024-11-22 12:44:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:31,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:33,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440016550] [2024-11-22 12:44:33,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440016550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:33,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:33,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:44:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72892292] [2024-11-22 12:44:33,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:33,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:44:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:33,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:44:33,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:33,549 INFO L87 Difference]: Start difference. First operand 233 states and 324 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:35,130 INFO L93 Difference]: Finished difference Result 659 states and 915 transitions. [2024-11-22 12:44:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 12:44:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-22 12:44:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:35,134 INFO L225 Difference]: With dead ends: 659 [2024-11-22 12:44:35,134 INFO L226 Difference]: Without dead ends: 429 [2024-11-22 12:44:35,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-11-22 12:44:35,137 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 571 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:35,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1431 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 12:44:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-22 12:44:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 262. [2024-11-22 12:44:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 237 states have (on average 1.3291139240506329) internal successors, (315), 238 states have internal predecessors, (315), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 357 transitions. [2024-11-22 12:44:35,187 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 357 transitions. Word has length 134 [2024-11-22 12:44:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 357 transitions. [2024-11-22 12:44:35,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:44:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 357 transitions. [2024-11-22 12:44:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:35,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:35,190 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:35,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:44:35,190 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:35,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:35,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1714700464, now seen corresponding path program 1 times [2024-11-22 12:44:35,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:35,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846506007] [2024-11-22 12:44:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:35,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:36,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:36,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846506007] [2024-11-22 12:44:36,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846506007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:36,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:36,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:36,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820814762] [2024-11-22 12:44:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:36,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:36,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:36,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:36,416 INFO L87 Difference]: Start difference. First operand 262 states and 357 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:37,154 INFO L93 Difference]: Finished difference Result 634 states and 871 transitions. [2024-11-22 12:44:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:44:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:37,157 INFO L225 Difference]: With dead ends: 634 [2024-11-22 12:44:37,157 INFO L226 Difference]: Without dead ends: 375 [2024-11-22 12:44:37,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:37,159 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 475 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:37,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 776 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:37,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-22 12:44:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 262. [2024-11-22 12:44:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 237 states have (on average 1.3206751054852321) internal successors, (313), 238 states have internal predecessors, (313), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 355 transitions. [2024-11-22 12:44:37,198 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 355 transitions. Word has length 134 [2024-11-22 12:44:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:37,198 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 355 transitions. [2024-11-22 12:44:37,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 355 transitions. [2024-11-22 12:44:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:37,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:37,201 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:37,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:44:37,201 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:37,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1154184496, now seen corresponding path program 1 times [2024-11-22 12:44:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031147809] [2024-11-22 12:44:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:37,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:38,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031147809] [2024-11-22 12:44:38,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031147809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:38,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:38,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:38,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410197356] [2024-11-22 12:44:38,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:38,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:38,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:38,374 INFO L87 Difference]: Start difference. First operand 262 states and 355 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:39,098 INFO L93 Difference]: Finished difference Result 690 states and 946 transitions. [2024-11-22 12:44:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:44:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:39,101 INFO L225 Difference]: With dead ends: 690 [2024-11-22 12:44:39,101 INFO L226 Difference]: Without dead ends: 431 [2024-11-22 12:44:39,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:39,102 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 461 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:39,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 785 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:39,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-22 12:44:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 264. [2024-11-22 12:44:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 239 states have (on average 1.3179916317991631) internal successors, (315), 240 states have internal predecessors, (315), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 357 transitions. [2024-11-22 12:44:39,144 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 357 transitions. Word has length 134 [2024-11-22 12:44:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:39,144 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 357 transitions. [2024-11-22 12:44:39,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 357 transitions. [2024-11-22 12:44:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:39,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:39,146 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:39,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:44:39,147 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:39,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1855249074, now seen corresponding path program 1 times [2024-11-22 12:44:39,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:39,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387928504] [2024-11-22 12:44:39,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:39,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:40,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:40,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387928504] [2024-11-22 12:44:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387928504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:40,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 12:44:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522223329] [2024-11-22 12:44:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:40,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 12:44:40,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 12:44:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:44:40,519 INFO L87 Difference]: Start difference. First operand 264 states and 357 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:41,485 INFO L93 Difference]: Finished difference Result 646 states and 881 transitions. [2024-11-22 12:44:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:44:41,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:41,488 INFO L225 Difference]: With dead ends: 646 [2024-11-22 12:44:41,488 INFO L226 Difference]: Without dead ends: 385 [2024-11-22 12:44:41,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:44:41,489 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 333 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:41,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1149 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:44:41,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-22 12:44:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 264. [2024-11-22 12:44:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 239 states have (on average 1.3179916317991631) internal successors, (315), 240 states have internal predecessors, (315), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 357 transitions. [2024-11-22 12:44:41,530 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 357 transitions. Word has length 134 [2024-11-22 12:44:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:41,530 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 357 transitions. [2024-11-22 12:44:41,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 357 transitions. [2024-11-22 12:44:41,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:41,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:41,532 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:41,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:44:41,532 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:41,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1842863872, now seen corresponding path program 1 times [2024-11-22 12:44:41,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428184963] [2024-11-22 12:44:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:41,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:43,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:43,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428184963] [2024-11-22 12:44:43,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428184963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:43,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:43,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:44:43,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85802313] [2024-11-22 12:44:43,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:43,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:44:43,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:43,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:44:43,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:43,307 INFO L87 Difference]: Start difference. First operand 264 states and 357 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:45,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:45,321 INFO L93 Difference]: Finished difference Result 740 states and 1013 transitions. [2024-11-22 12:44:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:44:45,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:45,324 INFO L225 Difference]: With dead ends: 740 [2024-11-22 12:44:45,324 INFO L226 Difference]: Without dead ends: 479 [2024-11-22 12:44:45,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:44:45,326 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 355 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:45,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1695 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 12:44:45,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-22 12:44:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 302. [2024-11-22 12:44:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 277 states have (on average 1.3285198555956679) internal successors, (368), 278 states have internal predecessors, (368), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 410 transitions. [2024-11-22 12:44:45,365 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 410 transitions. Word has length 134 [2024-11-22 12:44:45,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:45,365 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 410 transitions. [2024-11-22 12:44:45,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 410 transitions. [2024-11-22 12:44:45,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:45,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:45,367 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:45,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:44:45,367 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:45,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1141799294, now seen corresponding path program 1 times [2024-11-22 12:44:45,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327524649] [2024-11-22 12:44:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:46,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:46,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327524649] [2024-11-22 12:44:46,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327524649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:46,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:46,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:44:46,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287268378] [2024-11-22 12:44:46,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:46,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:44:46,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:46,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:44:46,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:44:46,571 INFO L87 Difference]: Start difference. First operand 302 states and 410 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:47,388 INFO L93 Difference]: Finished difference Result 808 states and 1102 transitions. [2024-11-22 12:44:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:44:47,389 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:47,392 INFO L225 Difference]: With dead ends: 808 [2024-11-22 12:44:47,393 INFO L226 Difference]: Without dead ends: 509 [2024-11-22 12:44:47,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-11-22 12:44:47,394 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 575 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:47,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 873 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-22 12:44:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 304. [2024-11-22 12:44:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 279 states have (on average 1.3225806451612903) internal successors, (369), 280 states have internal predecessors, (369), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-22 12:44:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 411 transitions. [2024-11-22 12:44:47,440 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 411 transitions. Word has length 134 [2024-11-22 12:44:47,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:47,441 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 411 transitions. [2024-11-22 12:44:47,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:47,441 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 411 transitions. [2024-11-22 12:44:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:47,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:47,443 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:47,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:44:47,443 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:47,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1442433993, now seen corresponding path program 1 times [2024-11-22 12:44:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663461864] [2024-11-22 12:44:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:50,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663461864] [2024-11-22 12:44:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663461864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:50,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:44:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897911307] [2024-11-22 12:44:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:50,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:44:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:50,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:44:50,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:44:50,647 INFO L87 Difference]: Start difference. First operand 304 states and 411 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-22 12:44:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:55,185 INFO L93 Difference]: Finished difference Result 901 states and 1213 transitions. [2024-11-22 12:44:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:44:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 134 [2024-11-22 12:44:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:55,193 INFO L225 Difference]: With dead ends: 901 [2024-11-22 12:44:55,196 INFO L226 Difference]: Without dead ends: 600 [2024-11-22 12:44:55,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:44:55,198 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 349 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:55,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1287 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-22 12:44:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-22 12:44:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 438. [2024-11-22 12:44:55,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 396 states have (on average 1.3181818181818181) internal successors, (522), 397 states have internal predecessors, (522), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:44:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 594 transitions. [2024-11-22 12:44:55,265 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 594 transitions. Word has length 134 [2024-11-22 12:44:55,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:55,265 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 594 transitions. [2024-11-22 12:44:55,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-22 12:44:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 594 transitions. [2024-11-22 12:44:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:55,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:55,267 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:55,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:44:55,267 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:55,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1702315262, now seen corresponding path program 1 times [2024-11-22 12:44:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:55,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322715025] [2024-11-22 12:44:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:56,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:56,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322715025] [2024-11-22 12:44:56,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322715025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:56,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:56,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:56,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584140476] [2024-11-22 12:44:56,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:56,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:56,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:56,344 INFO L87 Difference]: Start difference. First operand 438 states and 594 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:57,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:57,176 INFO L93 Difference]: Finished difference Result 862 states and 1175 transitions. [2024-11-22 12:44:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:44:57,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:57,179 INFO L225 Difference]: With dead ends: 862 [2024-11-22 12:44:57,179 INFO L226 Difference]: Without dead ends: 559 [2024-11-22 12:44:57,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:57,180 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 444 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:57,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 829 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:44:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-22 12:44:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 436. [2024-11-22 12:44:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 394 states have (on average 1.3096446700507614) internal successors, (516), 395 states have internal predecessors, (516), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:44:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 588 transitions. [2024-11-22 12:44:57,247 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 588 transitions. Word has length 134 [2024-11-22 12:44:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:57,248 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 588 transitions. [2024-11-22 12:44:57,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:57,248 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 588 transitions. [2024-11-22 12:44:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 12:44:57,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:57,250 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:57,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:44:57,251 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:57,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1001250684, now seen corresponding path program 1 times [2024-11-22 12:44:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:57,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971372516] [2024-11-22 12:44:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:57,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:44:58,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971372516] [2024-11-22 12:44:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971372516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:58,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:44:58,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651216748] [2024-11-22 12:44:58,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:58,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:44:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:58,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:44:58,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:44:58,570 INFO L87 Difference]: Start difference. First operand 436 states and 588 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:59,678 INFO L93 Difference]: Finished difference Result 865 states and 1173 transitions. [2024-11-22 12:44:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:44:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2024-11-22 12:44:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:59,681 INFO L225 Difference]: With dead ends: 865 [2024-11-22 12:44:59,681 INFO L226 Difference]: Without dead ends: 565 [2024-11-22 12:44:59,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:44:59,682 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 399 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:59,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1711 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 12:44:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-22 12:44:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 434. [2024-11-22 12:44:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 392 states have (on average 1.3112244897959184) internal successors, (514), 393 states have internal predecessors, (514), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:44:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 586 transitions. [2024-11-22 12:44:59,740 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 586 transitions. Word has length 134 [2024-11-22 12:44:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:59,740 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 586 transitions. [2024-11-22 12:44:59,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:44:59,740 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 586 transitions. [2024-11-22 12:44:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 12:44:59,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:59,741 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:59,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:44:59,742 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:59,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash 737974477, now seen corresponding path program 1 times [2024-11-22 12:44:59,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:59,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486428296] [2024-11-22 12:44:59,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:59,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:00,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:00,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486428296] [2024-11-22 12:45:00,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486428296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:00,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:00,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:45:00,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004756521] [2024-11-22 12:45:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:00,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:45:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:45:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:45:00,488 INFO L87 Difference]: Start difference. First operand 434 states and 586 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:01,191 INFO L93 Difference]: Finished difference Result 875 states and 1173 transitions. [2024-11-22 12:45:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:45:01,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2024-11-22 12:45:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:01,196 INFO L225 Difference]: With dead ends: 875 [2024-11-22 12:45:01,197 INFO L226 Difference]: Without dead ends: 557 [2024-11-22 12:45:01,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:45:01,199 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 294 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:01,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 907 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:45:01,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-22 12:45:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 458. [2024-11-22 12:45:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 416 states have (on average 1.3076923076923077) internal successors, (544), 417 states have internal predecessors, (544), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 616 transitions. [2024-11-22 12:45:01,277 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 616 transitions. Word has length 135 [2024-11-22 12:45:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:01,277 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 616 transitions. [2024-11-22 12:45:01,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 616 transitions. [2024-11-22 12:45:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:01,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:01,279 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:01,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:45:01,279 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:01,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash -492790084, now seen corresponding path program 1 times [2024-11-22 12:45:01,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:01,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620971738] [2024-11-22 12:45:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:01,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:01,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620971738] [2024-11-22 12:45:01,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620971738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:01,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:01,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:45:01,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538341294] [2024-11-22 12:45:01,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:01,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:45:01,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:45:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:45:01,967 INFO L87 Difference]: Start difference. First operand 458 states and 616 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:02,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:02,580 INFO L93 Difference]: Finished difference Result 601 states and 810 transitions. [2024-11-22 12:45:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:45:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:02,584 INFO L225 Difference]: With dead ends: 601 [2024-11-22 12:45:02,584 INFO L226 Difference]: Without dead ends: 599 [2024-11-22 12:45:02,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:45:02,585 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 273 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:02,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1071 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:45:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-22 12:45:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 464. [2024-11-22 12:45:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 422 states have (on average 1.3033175355450237) internal successors, (550), 423 states have internal predecessors, (550), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 622 transitions. [2024-11-22 12:45:02,664 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 622 transitions. Word has length 137 [2024-11-22 12:45:02,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:02,665 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 622 transitions. [2024-11-22 12:45:02,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 622 transitions. [2024-11-22 12:45:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:02,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:02,666 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:02,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 12:45:02,667 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:02,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash -490943042, now seen corresponding path program 1 times [2024-11-22 12:45:02,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421446017] [2024-11-22 12:45:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:02,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:04,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:04,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421446017] [2024-11-22 12:45:04,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421446017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:04,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:04,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:45:04,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131706799] [2024-11-22 12:45:04,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:04,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:45:04,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:04,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:45:04,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:45:04,523 INFO L87 Difference]: Start difference. First operand 464 states and 622 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:05,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:05,505 INFO L93 Difference]: Finished difference Result 1130 states and 1503 transitions. [2024-11-22 12:45:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:45:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-11-22 12:45:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:05,510 INFO L225 Difference]: With dead ends: 1130 [2024-11-22 12:45:05,510 INFO L226 Difference]: Without dead ends: 810 [2024-11-22 12:45:05,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-22 12:45:05,512 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 684 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:05,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1031 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:45:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-22 12:45:05,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 695. [2024-11-22 12:45:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 653 states have (on average 1.2924961715160797) internal successors, (844), 654 states have internal predecessors, (844), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 916 transitions. [2024-11-22 12:45:05,609 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 916 transitions. Word has length 137 [2024-11-22 12:45:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:05,609 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 916 transitions. [2024-11-22 12:45:05,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 916 transitions. [2024-11-22 12:45:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:05,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:05,611 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:05,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 12:45:05,611 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:05,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:05,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1522813478, now seen corresponding path program 1 times [2024-11-22 12:45:05,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:05,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105661303] [2024-11-22 12:45:05,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:05,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:06,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:06,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105661303] [2024-11-22 12:45:06,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105661303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:06,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:45:06,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212921494] [2024-11-22 12:45:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:06,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:45:06,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:45:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:45:06,181 INFO L87 Difference]: Start difference. First operand 695 states and 916 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:06,730 INFO L93 Difference]: Finished difference Result 1495 states and 1962 transitions. [2024-11-22 12:45:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:45:06,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:06,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:06,734 INFO L225 Difference]: With dead ends: 1495 [2024-11-22 12:45:06,734 INFO L226 Difference]: Without dead ends: 998 [2024-11-22 12:45:06,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:45:06,736 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 111 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:06,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1602 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:45:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-22 12:45:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 745. [2024-11-22 12:45:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 703 states have (on average 1.3086770981507823) internal successors, (920), 704 states have internal predecessors, (920), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 992 transitions. [2024-11-22 12:45:06,825 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 992 transitions. Word has length 137 [2024-11-22 12:45:06,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:06,825 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 992 transitions. [2024-11-22 12:45:06,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 992 transitions. [2024-11-22 12:45:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:06,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:06,827 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:06,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 12:45:06,828 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:06,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:06,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1184114780, now seen corresponding path program 1 times [2024-11-22 12:45:06,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:06,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904482929] [2024-11-22 12:45:06,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:06,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:07,759 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:07,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:07,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904482929] [2024-11-22 12:45:07,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904482929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:07,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:07,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:45:07,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857748306] [2024-11-22 12:45:07,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:07,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:45:07,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:07,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:45:07,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:45:07,762 INFO L87 Difference]: Start difference. First operand 745 states and 992 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:08,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:08,695 INFO L93 Difference]: Finished difference Result 1561 states and 2040 transitions. [2024-11-22 12:45:08,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 12:45:08,696 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:08,700 INFO L225 Difference]: With dead ends: 1561 [2024-11-22 12:45:08,701 INFO L226 Difference]: Without dead ends: 1038 [2024-11-22 12:45:08,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-22 12:45:08,702 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 207 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:08,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1670 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 12:45:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-22 12:45:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 745. [2024-11-22 12:45:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 703 states have (on average 1.3086770981507823) internal successors, (920), 704 states have internal predecessors, (920), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:08,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 992 transitions. [2024-11-22 12:45:08,804 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 992 transitions. Word has length 137 [2024-11-22 12:45:08,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:08,804 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 992 transitions. [2024-11-22 12:45:08,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:08,805 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 992 transitions. [2024-11-22 12:45:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:08,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:08,806 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:08,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 12:45:08,806 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:08,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:08,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1830988838, now seen corresponding path program 1 times [2024-11-22 12:45:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:08,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356199470] [2024-11-22 12:45:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:08,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:09,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:09,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356199470] [2024-11-22 12:45:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356199470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:09,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:09,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:45:09,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634515266] [2024-11-22 12:45:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:09,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:45:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:45:09,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:45:09,347 INFO L87 Difference]: Start difference. First operand 745 states and 992 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:09,994 INFO L93 Difference]: Finished difference Result 1492 states and 1985 transitions. [2024-11-22 12:45:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:45:09,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:09,999 INFO L225 Difference]: With dead ends: 1492 [2024-11-22 12:45:09,999 INFO L226 Difference]: Without dead ends: 979 [2024-11-22 12:45:10,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:45:10,001 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 298 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:10,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 940 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:45:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-11-22 12:45:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 745. [2024-11-22 12:45:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 703 states have (on average 1.305832147937411) internal successors, (918), 704 states have internal predecessors, (918), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 990 transitions. [2024-11-22 12:45:10,085 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 990 transitions. Word has length 137 [2024-11-22 12:45:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:10,086 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 990 transitions. [2024-11-22 12:45:10,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 990 transitions. [2024-11-22 12:45:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:10,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:10,088 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:10,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 12:45:10,088 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:10,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2001763230, now seen corresponding path program 1 times [2024-11-22 12:45:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70877173] [2024-11-22 12:45:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:10,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:10,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70877173] [2024-11-22 12:45:10,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70877173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:10,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:10,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:45:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765768636] [2024-11-22 12:45:10,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:10,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:45:10,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:45:10,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:45:10,329 INFO L87 Difference]: Start difference. First operand 745 states and 990 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:10,576 INFO L93 Difference]: Finished difference Result 1447 states and 1894 transitions. [2024-11-22 12:45:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:45:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:10,581 INFO L225 Difference]: With dead ends: 1447 [2024-11-22 12:45:10,581 INFO L226 Difference]: Without dead ends: 898 [2024-11-22 12:45:10,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:45:10,583 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 104 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:10,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 577 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:45:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-22 12:45:10,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 733. [2024-11-22 12:45:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 691 states have (on average 1.2908827785817656) internal successors, (892), 692 states have internal predecessors, (892), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 964 transitions. [2024-11-22 12:45:10,673 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 964 transitions. Word has length 137 [2024-11-22 12:45:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:10,674 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 964 transitions. [2024-11-22 12:45:10,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 964 transitions. [2024-11-22 12:45:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:10,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:10,675 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:10,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 12:45:10,676 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:10,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1669416001, now seen corresponding path program 1 times [2024-11-22 12:45:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:10,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773983138] [2024-11-22 12:45:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:10,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:11,351 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:11,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:11,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773983138] [2024-11-22 12:45:11,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773983138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:11,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:11,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:45:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281292621] [2024-11-22 12:45:11,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:11,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:45:11,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:11,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:45:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:45:11,352 INFO L87 Difference]: Start difference. First operand 733 states and 964 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:12,032 INFO L93 Difference]: Finished difference Result 1391 states and 1826 transitions. [2024-11-22 12:45:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:45:12,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2024-11-22 12:45:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:12,036 INFO L225 Difference]: With dead ends: 1391 [2024-11-22 12:45:12,036 INFO L226 Difference]: Without dead ends: 854 [2024-11-22 12:45:12,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:45:12,038 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 318 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:12,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 883 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:45:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-22 12:45:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 689. [2024-11-22 12:45:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 647 states have (on average 1.2735703245749614) internal successors, (824), 648 states have internal predecessors, (824), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:12,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 896 transitions. [2024-11-22 12:45:12,122 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 896 transitions. Word has length 137 [2024-11-22 12:45:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:12,122 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 896 transitions. [2024-11-22 12:45:12,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 12:45:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 896 transitions. [2024-11-22 12:45:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 12:45:12,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:12,124 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:12,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 12:45:12,124 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:12,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2116078205, now seen corresponding path program 1 times [2024-11-22 12:45:12,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:12,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909780595] [2024-11-22 12:45:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:12,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:12,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:12,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909780595] [2024-11-22 12:45:12,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909780595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:12,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:45:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178938665] [2024-11-22 12:45:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:12,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:45:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:45:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:45:12,858 INFO L87 Difference]: Start difference. First operand 689 states and 896 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:13,475 INFO L93 Difference]: Finished difference Result 1323 states and 1722 transitions. [2024-11-22 12:45:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:45:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2024-11-22 12:45:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:13,478 INFO L225 Difference]: With dead ends: 1323 [2024-11-22 12:45:13,478 INFO L226 Difference]: Without dead ends: 808 [2024-11-22 12:45:13,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:45:13,480 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 433 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:13,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 873 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:45:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-22 12:45:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 643. [2024-11-22 12:45:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 601 states have (on average 1.2579034941763727) internal successors, (756), 602 states have internal predecessors, (756), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 828 transitions. [2024-11-22 12:45:13,574 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 828 transitions. Word has length 137 [2024-11-22 12:45:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:13,574 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 828 transitions. [2024-11-22 12:45:13,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 828 transitions. [2024-11-22 12:45:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:45:13,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:13,576 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:13,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 12:45:13,576 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:13,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601949, now seen corresponding path program 1 times [2024-11-22 12:45:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:13,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244384710] [2024-11-22 12:45:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-22 12:45:14,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:45:14,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244384710] [2024-11-22 12:45:14,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244384710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:45:14,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:45:14,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:45:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836637179] [2024-11-22 12:45:14,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:45:14,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:45:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:45:14,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:45:14,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:45:14,044 INFO L87 Difference]: Start difference. First operand 643 states and 828 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:45:14,429 INFO L93 Difference]: Finished difference Result 1098 states and 1415 transitions. [2024-11-22 12:45:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:45:14,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-22 12:45:14,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:45:14,433 INFO L225 Difference]: With dead ends: 1098 [2024-11-22 12:45:14,433 INFO L226 Difference]: Without dead ends: 643 [2024-11-22 12:45:14,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:45:14,435 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 126 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:45:14,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 463 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:45:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-22 12:45:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2024-11-22 12:45:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 601 states have (on average 1.2562396006655574) internal successors, (755), 602 states have internal predecessors, (755), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 12:45:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 827 transitions. [2024-11-22 12:45:14,526 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 827 transitions. Word has length 139 [2024-11-22 12:45:14,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:45:14,526 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 827 transitions. [2024-11-22 12:45:14,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 12:45:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 827 transitions. [2024-11-22 12:45:14,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 12:45:14,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:45:14,528 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:45:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 12:45:14,528 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:45:14,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:45:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1738053339, now seen corresponding path program 1 times [2024-11-22 12:45:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:45:14,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833742622] [2024-11-22 12:45:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:14,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:45:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 12:45:14,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301267805] [2024-11-22 12:45:14,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:45:14,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:45:14,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:45:14,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:45:14,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:45:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:45:15,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-22 12:45:15,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:45:15,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 12:45:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 54 proven. 242 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-22 12:45:16,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:45:16,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54