./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.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 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:48:33,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:48:33,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:48:33,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:48:33,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:48:33,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:48:33,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:48:33,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:48:33,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:48:33,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:48:33,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:48:33,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:48:33,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:48:33,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:48:33,381 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:48:33,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:48:33,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:48:33,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:48:33,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:48:33,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:48:33,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:48:33,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:48:33,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:48:33,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:48:33,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:48:33,388 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:48:33,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:48:33,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:48:33,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:48:33,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:48:33,389 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:48:33,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:48:33,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:48:33,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:48:33,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:48:33,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:48:33,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:48:33,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:48:33,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:48:33,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:48:33,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:48:33,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:48:33,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b23e56f7fb6f5a6e6082a7d837c764b9113a3019ea380051f143af60aabcf6a [2024-10-14 13:48:33,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:48:33,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:48:33,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:48:33,651 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:48:33,651 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:48:33,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-10-14 13:48:35,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:48:35,278 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:48:35,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i [2024-10-14 13:48:35,293 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368c9d309/cfd31d8d8e544043843c95aa92537e3c/FLAGe5efe7e85 [2024-10-14 13:48:35,663 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/368c9d309/cfd31d8d8e544043843c95aa92537e3c [2024-10-14 13:48:35,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:48:35,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:48:35,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:48:35,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:48:35,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:48:35,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:48:35" (1/1) ... [2024-10-14 13:48:35,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e1087e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:35, skipping insertion in model container [2024-10-14 13:48:35,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:48:35" (1/1) ... [2024-10-14 13:48:35,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:48:35,855 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i[916,929] [2024-10-14 13:48:35,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:48:35,948 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:48:35,961 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-66.i[916,929] [2024-10-14 13:48:36,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:48:36,033 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:48:36,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36 WrapperNode [2024-10-14 13:48:36,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:48:36,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:48:36,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:48:36,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:48:36,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,112 INFO L138 Inliner]: procedures = 26, calls = 160, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2024-10-14 13:48:36,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:48:36,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:48:36,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:48:36,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:48:36,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,151 INFO L175 MemorySlicer]: Split 123 memory accesses to 13 slices as follows [2, 7, 10, 8, 14, 8, 16, 8, 8, 14, 8, 13, 7]. 13 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 2, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1]. [2024-10-14 13:48:36,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:48:36,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:48:36,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:48:36,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:48:36,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (1/1) ... [2024-10-14 13:48:36,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:48:36,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:48:36,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 13:48:36,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 13:48:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:48:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 13:48:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 13:48:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 13:48:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 13:48:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 13:48:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-14 13:48:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-14 13:48:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-14 13:48:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-14 13:48:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:48:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 13:48:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 13:48:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 13:48:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 13:48:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-14 13:48:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-14 13:48:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-14 13:48:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-14 13:48:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:48:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:48:36,471 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:48:36,473 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:48:36,930 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-14 13:48:36,930 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:48:36,977 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:48:36,977 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:48:36,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:48:36 BoogieIcfgContainer [2024-10-14 13:48:36,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:48:36,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:48:36,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:48:36,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:48:36,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:48:35" (1/3) ... [2024-10-14 13:48:36,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f3b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:48:36, skipping insertion in model container [2024-10-14 13:48:36,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:48:36" (2/3) ... [2024-10-14 13:48:36,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f3b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:48:36, skipping insertion in model container [2024-10-14 13:48:36,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:48:36" (3/3) ... [2024-10-14 13:48:36,986 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-66.i [2024-10-14 13:48:37,004 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:48:37,005 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:48:37,071 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:48:37,079 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;@322b3028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:48:37,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:48:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:48:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:48:37,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:37,096 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:37,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:37,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1546467173, now seen corresponding path program 1 times [2024-10-14 13:48:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539927382] [2024-10-14 13:48:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539927382] [2024-10-14 13:48:37,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539927382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:37,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:37,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:48:37,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435914369] [2024-10-14 13:48:37,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:37,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:48:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:48:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:48:37,564 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:48:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:37,613 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2024-10-14 13:48:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:48:37,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-14 13:48:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:37,623 INFO L225 Difference]: With dead ends: 155 [2024-10-14 13:48:37,623 INFO L226 Difference]: Without dead ends: 77 [2024-10-14 13:48:37,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:48:37,630 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:37,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:48:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-14 13:48:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-14 13:48:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:48:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2024-10-14 13:48:37,677 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2024-10-14 13:48:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:37,678 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2024-10-14 13:48:37,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:48:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2024-10-14 13:48:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:48:37,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:37,681 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:37,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:48:37,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:37,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2127253175, now seen corresponding path program 1 times [2024-10-14 13:48:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518105468] [2024-10-14 13:48:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:37,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:37,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518105468] [2024-10-14 13:48:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518105468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:38,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:48:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519604450] [2024-10-14 13:48:38,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:38,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:48:38,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:48:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:38,033 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:38,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:38,105 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2024-10-14 13:48:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:48:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:48:38,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:38,107 INFO L225 Difference]: With dead ends: 156 [2024-10-14 13:48:38,109 INFO L226 Difference]: Without dead ends: 80 [2024-10-14 13:48:38,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:38,112 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:38,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 311 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:48:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-14 13:48:38,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2024-10-14 13:48:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:48:38,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2024-10-14 13:48:38,130 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2024-10-14 13:48:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:38,131 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2024-10-14 13:48:38,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2024-10-14 13:48:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:48:38,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:38,135 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:38,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:48:38,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:38,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:38,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2069994873, now seen corresponding path program 1 times [2024-10-14 13:48:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:38,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273991395] [2024-10-14 13:48:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:38,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:38,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:38,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273991395] [2024-10-14 13:48:38,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273991395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:38,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:38,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:48:38,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770520670] [2024-10-14 13:48:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:38,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:48:38,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:48:38,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:38,408 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:38,450 INFO L93 Difference]: Finished difference Result 160 states and 233 transitions. [2024-10-14 13:48:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:48:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:48:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:38,452 INFO L225 Difference]: With dead ends: 160 [2024-10-14 13:48:38,453 INFO L226 Difference]: Without dead ends: 82 [2024-10-14 13:48:38,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:38,454 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:38,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 315 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:48:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-14 13:48:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-10-14 13:48:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:48:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-10-14 13:48:38,463 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2024-10-14 13:48:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:38,464 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-10-14 13:48:38,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-10-14 13:48:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:48:38,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:38,466 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:38,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:48:38,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:38,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:38,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2069935291, now seen corresponding path program 1 times [2024-10-14 13:48:38,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982800194] [2024-10-14 13:48:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:38,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:38,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982800194] [2024-10-14 13:48:38,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982800194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:38,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:38,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:48:38,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635390534] [2024-10-14 13:48:38,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:38,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:48:38,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:48:38,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:38,911 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:39,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:39,074 INFO L93 Difference]: Finished difference Result 241 states and 349 transitions. [2024-10-14 13:48:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:48:39,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:48:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:39,077 INFO L225 Difference]: With dead ends: 241 [2024-10-14 13:48:39,078 INFO L226 Difference]: Without dead ends: 161 [2024-10-14 13:48:39,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:39,082 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 76 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:39,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 303 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:39,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-14 13:48:39,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2024-10-14 13:48:39,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 122 states have internal predecessors, (165), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:48:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2024-10-14 13:48:39,110 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 104 [2024-10-14 13:48:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:39,111 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2024-10-14 13:48:39,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:39,111 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2024-10-14 13:48:39,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:48:39,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:39,114 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:39,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:48:39,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:39,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:39,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1113492940, now seen corresponding path program 1 times [2024-10-14 13:48:39,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:39,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743773427] [2024-10-14 13:48:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:39,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:41,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:41,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:41,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743773427] [2024-10-14 13:48:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743773427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:41,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:41,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:48:41,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069594254] [2024-10-14 13:48:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:41,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:48:41,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:41,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:48:41,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:48:41,368 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:43,375 INFO L93 Difference]: Finished difference Result 608 states and 872 transitions. [2024-10-14 13:48:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-14 13:48:43,376 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 105 [2024-10-14 13:48:43,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:43,379 INFO L225 Difference]: With dead ends: 608 [2024-10-14 13:48:43,379 INFO L226 Difference]: Without dead ends: 456 [2024-10-14 13:48:43,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=255, Invalid=1005, Unknown=0, NotChecked=0, Total=1260 [2024-10-14 13:48:43,381 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1509 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:43,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1250 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 13:48:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-10-14 13:48:43,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 185. [2024-10-14 13:48:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 147 states have (on average 1.3401360544217686) internal successors, (197), 148 states have internal predecessors, (197), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:48:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 265 transitions. [2024-10-14 13:48:43,420 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 265 transitions. Word has length 105 [2024-10-14 13:48:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:43,420 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 265 transitions. [2024-10-14 13:48:43,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 265 transitions. [2024-10-14 13:48:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:48:43,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:43,422 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:43,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:48:43,423 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:43,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:43,423 INFO L85 PathProgramCache]: Analyzing trace with hash -855327502, now seen corresponding path program 1 times [2024-10-14 13:48:43,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:43,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881149694] [2024-10-14 13:48:43,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:44,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:44,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881149694] [2024-10-14 13:48:44,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881149694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:44,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:44,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:48:44,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666241195] [2024-10-14 13:48:44,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:44,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:48:44,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:44,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:48:44,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:48:44,251 INFO L87 Difference]: Start difference. First operand 185 states and 265 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:45,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:45,234 INFO L93 Difference]: Finished difference Result 567 states and 795 transitions. [2024-10-14 13:48:45,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:48:45,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 105 [2024-10-14 13:48:45,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:45,238 INFO L225 Difference]: With dead ends: 567 [2024-10-14 13:48:45,238 INFO L226 Difference]: Without dead ends: 395 [2024-10-14 13:48:45,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-10-14 13:48:45,240 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 512 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:45,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 703 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:48:45,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-10-14 13:48:45,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 255. [2024-10-14 13:48:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 200 states have (on average 1.305) internal successors, (261), 202 states have internal predecessors, (261), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 13:48:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 357 transitions. [2024-10-14 13:48:45,296 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 357 transitions. Word has length 105 [2024-10-14 13:48:45,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:45,297 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 357 transitions. [2024-10-14 13:48:45,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:45,297 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 357 transitions. [2024-10-14 13:48:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:48:45,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:45,302 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:45,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:48:45,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:45,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:45,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1654110875, now seen corresponding path program 1 times [2024-10-14 13:48:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:45,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452650482] [2024-10-14 13:48:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:45,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:45,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:45,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452650482] [2024-10-14 13:48:45,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452650482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:45,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:45,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:48:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308014971] [2024-10-14 13:48:45,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:45,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:48:45,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:48:45,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:45,543 INFO L87 Difference]: Start difference. First operand 255 states and 357 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:45,641 INFO L93 Difference]: Finished difference Result 570 states and 789 transitions. [2024-10-14 13:48:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:48:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2024-10-14 13:48:45,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:45,647 INFO L225 Difference]: With dead ends: 570 [2024-10-14 13:48:45,648 INFO L226 Difference]: Without dead ends: 328 [2024-10-14 13:48:45,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:48:45,650 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 65 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:45,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 454 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-14 13:48:45,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 325. [2024-10-14 13:48:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 262 states have (on average 1.3015267175572518) internal successors, (341), 265 states have internal predecessors, (341), 52 states have call successors, (52), 10 states have call predecessors, (52), 10 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:48:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 445 transitions. [2024-10-14 13:48:45,691 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 445 transitions. Word has length 106 [2024-10-14 13:48:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:45,692 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 445 transitions. [2024-10-14 13:48:45,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 445 transitions. [2024-10-14 13:48:45,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:48:45,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:45,693 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:45,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:48:45,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:45,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:45,694 INFO L85 PathProgramCache]: Analyzing trace with hash 374247197, now seen corresponding path program 1 times [2024-10-14 13:48:45,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:45,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603927024] [2024-10-14 13:48:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:45,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:45,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:45,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603927024] [2024-10-14 13:48:45,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603927024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:45,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:45,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:48:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906525879] [2024-10-14 13:48:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:45,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:48:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:45,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:48:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:45,923 INFO L87 Difference]: Start difference. First operand 325 states and 445 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:46,041 INFO L93 Difference]: Finished difference Result 565 states and 776 transitions. [2024-10-14 13:48:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:48:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2024-10-14 13:48:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:46,044 INFO L225 Difference]: With dead ends: 565 [2024-10-14 13:48:46,044 INFO L226 Difference]: Without dead ends: 257 [2024-10-14 13:48:46,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:48:46,046 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 74 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:46,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 338 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-10-14 13:48:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 249. [2024-10-14 13:48:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 203 states have (on average 1.3054187192118227) internal successors, (265), 205 states have internal predecessors, (265), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:48:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 341 transitions. [2024-10-14 13:48:46,074 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 341 transitions. Word has length 106 [2024-10-14 13:48:46,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:46,075 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 341 transitions. [2024-10-14 13:48:46,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,075 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 341 transitions. [2024-10-14 13:48:46,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 13:48:46,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:46,076 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:46,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:48:46,077 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:46,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:46,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2134532864, now seen corresponding path program 1 times [2024-10-14 13:48:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:46,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139915529] [2024-10-14 13:48:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:46,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:46,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139915529] [2024-10-14 13:48:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139915529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:46,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:46,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:48:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174975644] [2024-10-14 13:48:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:46,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:48:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:48:46,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:48:46,163 INFO L87 Difference]: Start difference. First operand 249 states and 341 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:46,204 INFO L93 Difference]: Finished difference Result 484 states and 666 transitions. [2024-10-14 13:48:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:48:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2024-10-14 13:48:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:46,206 INFO L225 Difference]: With dead ends: 484 [2024-10-14 13:48:46,207 INFO L226 Difference]: Without dead ends: 252 [2024-10-14 13:48:46,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:48:46,208 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:46,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:48:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-10-14 13:48:46,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-10-14 13:48:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 206 states have (on average 1.3009708737864079) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:48:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 344 transitions. [2024-10-14 13:48:46,233 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 344 transitions. Word has length 108 [2024-10-14 13:48:46,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:46,233 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 344 transitions. [2024-10-14 13:48:46,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,234 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 344 transitions. [2024-10-14 13:48:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 13:48:46,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:46,235 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:46,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:48:46,235 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:46,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1902268994, now seen corresponding path program 1 times [2024-10-14 13:48:46,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:46,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356974801] [2024-10-14 13:48:46,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:46,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:46,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356974801] [2024-10-14 13:48:46,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356974801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:46,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:46,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:48:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663236674] [2024-10-14 13:48:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:46,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:48:46,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:46,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:48:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:46,421 INFO L87 Difference]: Start difference. First operand 252 states and 344 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:46,472 INFO L93 Difference]: Finished difference Result 496 states and 678 transitions. [2024-10-14 13:48:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:48:46,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2024-10-14 13:48:46,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:46,475 INFO L225 Difference]: With dead ends: 496 [2024-10-14 13:48:46,475 INFO L226 Difference]: Without dead ends: 261 [2024-10-14 13:48:46,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:46,476 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:46,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 413 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:48:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-14 13:48:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-10-14 13:48:46,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 215 states have (on average 1.2883720930232558) internal successors, (277), 217 states have internal predecessors, (277), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:48:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 353 transitions. [2024-10-14 13:48:46,501 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 353 transitions. Word has length 108 [2024-10-14 13:48:46,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:46,502 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 353 transitions. [2024-10-14 13:48:46,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 353 transitions. [2024-10-14 13:48:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 13:48:46,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:46,503 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:46,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:48:46,503 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:46,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash 433358129, now seen corresponding path program 1 times [2024-10-14 13:48:46,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:46,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584626239] [2024-10-14 13:48:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:46,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584626239] [2024-10-14 13:48:47,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584626239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:47,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:47,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:48:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486646213] [2024-10-14 13:48:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:47,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:48:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:47,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:48:47,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:48:47,081 INFO L87 Difference]: Start difference. First operand 261 states and 353 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:47,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:47,757 INFO L93 Difference]: Finished difference Result 537 states and 730 transitions. [2024-10-14 13:48:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:48:47,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 108 [2024-10-14 13:48:47,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:47,760 INFO L225 Difference]: With dead ends: 537 [2024-10-14 13:48:47,760 INFO L226 Difference]: Without dead ends: 377 [2024-10-14 13:48:47,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:48:47,762 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 335 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:47,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 594 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:48:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-10-14 13:48:47,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 261. [2024-10-14 13:48:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 215 states have (on average 1.2790697674418605) internal successors, (275), 217 states have internal predecessors, (275), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:48:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 351 transitions. [2024-10-14 13:48:47,796 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 351 transitions. Word has length 108 [2024-10-14 13:48:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:47,797 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 351 transitions. [2024-10-14 13:48:47,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 351 transitions. [2024-10-14 13:48:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 13:48:47,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:47,798 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:47,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:48:47,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:47,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash 691523567, now seen corresponding path program 1 times [2024-10-14 13:48:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:47,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618645015] [2024-10-14 13:48:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:47,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618645015] [2024-10-14 13:48:48,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618645015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:48,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:48,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:48:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641170058] [2024-10-14 13:48:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:48,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:48:48,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:48,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:48:48,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:48,233 INFO L87 Difference]: Start difference. First operand 261 states and 351 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:48,356 INFO L93 Difference]: Finished difference Result 489 states and 663 transitions. [2024-10-14 13:48:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:48:48,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2024-10-14 13:48:48,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:48,358 INFO L225 Difference]: With dead ends: 489 [2024-10-14 13:48:48,359 INFO L226 Difference]: Without dead ends: 329 [2024-10-14 13:48:48,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:48:48,360 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 46 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:48,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 521 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:48,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-14 13:48:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 257. [2024-10-14 13:48:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 211 states have (on average 1.2748815165876777) internal successors, (269), 213 states have internal predecessors, (269), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:48:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2024-10-14 13:48:48,392 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 345 transitions. Word has length 108 [2024-10-14 13:48:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:48,393 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 345 transitions. [2024-10-14 13:48:48,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 345 transitions. [2024-10-14 13:48:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 13:48:48,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:48,394 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:48,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:48:48,394 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:48,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1857770587, now seen corresponding path program 1 times [2024-10-14 13:48:48,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:48,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377814352] [2024-10-14 13:48:48,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:48,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:48,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377814352] [2024-10-14 13:48:48,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377814352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:48,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:48,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:48:48,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716519116] [2024-10-14 13:48:48,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:48,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:48:48,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:48,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:48:48,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:48:48,930 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:49,300 INFO L93 Difference]: Finished difference Result 481 states and 646 transitions. [2024-10-14 13:48:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 13:48:49,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 110 [2024-10-14 13:48:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:49,303 INFO L225 Difference]: With dead ends: 481 [2024-10-14 13:48:49,304 INFO L226 Difference]: Without dead ends: 325 [2024-10-14 13:48:49,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:48:49,305 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 202 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:49,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 566 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:48:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-10-14 13:48:49,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 254. [2024-10-14 13:48:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 215 states have (on average 1.2976744186046512) internal successors, (279), 216 states have internal predecessors, (279), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 343 transitions. [2024-10-14 13:48:49,344 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 343 transitions. Word has length 110 [2024-10-14 13:48:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:49,345 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 343 transitions. [2024-10-14 13:48:49,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 343 transitions. [2024-10-14 13:48:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 13:48:49,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:49,346 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:49,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:48:49,346 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:49,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash 173149895, now seen corresponding path program 1 times [2024-10-14 13:48:49,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398588830] [2024-10-14 13:48:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:49,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:49,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398588830] [2024-10-14 13:48:49,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398588830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:49,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:49,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:48:49,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72540435] [2024-10-14 13:48:49,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:49,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:48:49,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:49,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:48:49,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:48:49,744 INFO L87 Difference]: Start difference. First operand 254 states and 343 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:49,903 INFO L93 Difference]: Finished difference Result 426 states and 577 transitions. [2024-10-14 13:48:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:48:49,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2024-10-14 13:48:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:49,905 INFO L225 Difference]: With dead ends: 426 [2024-10-14 13:48:49,905 INFO L226 Difference]: Without dead ends: 257 [2024-10-14 13:48:49,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:48:49,906 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 54 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:49,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 556 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-10-14 13:48:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 252. [2024-10-14 13:48:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 213 states have (on average 1.2910798122065728) internal successors, (275), 214 states have internal predecessors, (275), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2024-10-14 13:48:49,936 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 110 [2024-10-14 13:48:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:49,936 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2024-10-14 13:48:49,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2024-10-14 13:48:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 13:48:49,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:49,938 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:49,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:48:49,938 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:49,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:49,938 INFO L85 PathProgramCache]: Analyzing trace with hash 991276688, now seen corresponding path program 1 times [2024-10-14 13:48:49,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:49,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377272868] [2024-10-14 13:48:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:49,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:50,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377272868] [2024-10-14 13:48:50,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377272868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:50,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:50,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:48:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538997402] [2024-10-14 13:48:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:50,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:48:50,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:48:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:48:50,252 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:50,610 INFO L93 Difference]: Finished difference Result 615 states and 826 transitions. [2024-10-14 13:48:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:48:50,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-14 13:48:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:50,613 INFO L225 Difference]: With dead ends: 615 [2024-10-14 13:48:50,613 INFO L226 Difference]: Without dead ends: 364 [2024-10-14 13:48:50,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:48:50,616 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 222 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:50,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 640 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:48:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-10-14 13:48:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 251. [2024-10-14 13:48:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 212 states have (on average 1.2877358490566038) internal successors, (273), 213 states have internal predecessors, (273), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 337 transitions. [2024-10-14 13:48:50,650 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 337 transitions. Word has length 111 [2024-10-14 13:48:50,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:50,651 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 337 transitions. [2024-10-14 13:48:50,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 337 transitions. [2024-10-14 13:48:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 13:48:50,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:50,654 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:50,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:48:50,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:50,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash -19840562, now seen corresponding path program 1 times [2024-10-14 13:48:50,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:50,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656207857] [2024-10-14 13:48:50,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:50,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:50,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:50,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656207857] [2024-10-14 13:48:50,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656207857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:50,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:50,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:48:50,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016614639] [2024-10-14 13:48:50,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:50,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:48:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:48:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:50,914 INFO L87 Difference]: Start difference. First operand 251 states and 337 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:51,011 INFO L93 Difference]: Finished difference Result 492 states and 658 transitions. [2024-10-14 13:48:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:48:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-14 13:48:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:51,014 INFO L225 Difference]: With dead ends: 492 [2024-10-14 13:48:51,014 INFO L226 Difference]: Without dead ends: 242 [2024-10-14 13:48:51,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:48:51,015 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 57 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:51,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 448 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-10-14 13:48:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 239. [2024-10-14 13:48:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 200 states have (on average 1.27) internal successors, (254), 201 states have internal predecessors, (254), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2024-10-14 13:48:51,047 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 111 [2024-10-14 13:48:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:51,048 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2024-10-14 13:48:51,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2024-10-14 13:48:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 13:48:51,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:51,049 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:51,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:48:51,050 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:51,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:51,050 INFO L85 PathProgramCache]: Analyzing trace with hash -693344004, now seen corresponding path program 1 times [2024-10-14 13:48:51,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:51,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056050819] [2024-10-14 13:48:51,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:51,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:51,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056050819] [2024-10-14 13:48:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056050819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:51,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:48:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480873035] [2024-10-14 13:48:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:51,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:48:51,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:48:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:48:51,272 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:51,374 INFO L93 Difference]: Finished difference Result 485 states and 646 transitions. [2024-10-14 13:48:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:48:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-14 13:48:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:51,377 INFO L225 Difference]: With dead ends: 485 [2024-10-14 13:48:51,377 INFO L226 Difference]: Without dead ends: 247 [2024-10-14 13:48:51,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:48:51,378 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 90 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:51,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:51,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-14 13:48:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 239. [2024-10-14 13:48:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 200 states have (on average 1.265) internal successors, (253), 201 states have internal predecessors, (253), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 317 transitions. [2024-10-14 13:48:51,413 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 317 transitions. Word has length 111 [2024-10-14 13:48:51,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:51,413 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 317 transitions. [2024-10-14 13:48:51,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 317 transitions. [2024-10-14 13:48:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:48:51,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:51,415 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:51,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:48:51,416 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:51,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:51,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1503691300, now seen corresponding path program 1 times [2024-10-14 13:48:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205655598] [2024-10-14 13:48:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:51,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:52,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:52,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205655598] [2024-10-14 13:48:52,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205655598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:52,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:52,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:48:52,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145704685] [2024-10-14 13:48:52,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:52,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:48:52,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:52,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:48:52,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:48:52,532 INFO L87 Difference]: Start difference. First operand 239 states and 317 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:53,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:53,221 INFO L93 Difference]: Finished difference Result 345 states and 452 transitions. [2024-10-14 13:48:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:48:53,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2024-10-14 13:48:53,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:53,224 INFO L225 Difference]: With dead ends: 345 [2024-10-14 13:48:53,224 INFO L226 Difference]: Without dead ends: 343 [2024-10-14 13:48:53,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:48:53,225 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 542 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:53,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 615 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:48:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-14 13:48:53,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 245. [2024-10-14 13:48:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 206 states have (on average 1.2572815533980584) internal successors, (259), 207 states have internal predecessors, (259), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:48:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 323 transitions. [2024-10-14 13:48:53,259 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 323 transitions. Word has length 112 [2024-10-14 13:48:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:53,259 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 323 transitions. [2024-10-14 13:48:53,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:48:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 323 transitions. [2024-10-14 13:48:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:48:53,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:53,261 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:53,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:48:53,262 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:53,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1503750882, now seen corresponding path program 1 times [2024-10-14 13:48:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:53,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908887352] [2024-10-14 13:48:53,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:53,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:54,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:54,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908887352] [2024-10-14 13:48:54,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908887352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:54,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:54,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 13:48:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455227355] [2024-10-14 13:48:54,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:54,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 13:48:54,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:54,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 13:48:54,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:48:54,247 INFO L87 Difference]: Start difference. First operand 245 states and 323 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:48:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:55,499 INFO L93 Difference]: Finished difference Result 597 states and 791 transitions. [2024-10-14 13:48:55,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:48:55,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-10-14 13:48:55,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:55,502 INFO L225 Difference]: With dead ends: 597 [2024-10-14 13:48:55,502 INFO L226 Difference]: Without dead ends: 426 [2024-10-14 13:48:55,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-10-14 13:48:55,504 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 463 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:55,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1194 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:48:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-14 13:48:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 382. [2024-10-14 13:48:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 314 states have (on average 1.2547770700636942) internal successors, (394), 317 states have internal predecessors, (394), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-14 13:48:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 506 transitions. [2024-10-14 13:48:55,587 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 506 transitions. Word has length 112 [2024-10-14 13:48:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:55,588 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 506 transitions. [2024-10-14 13:48:55,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:48:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 506 transitions. [2024-10-14 13:48:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:48:55,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:55,590 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:55,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:48:55,590 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:55,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1561009184, now seen corresponding path program 1 times [2024-10-14 13:48:55,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:55,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711692527] [2024-10-14 13:48:55,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:55,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:55,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-14 13:48:56,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711692527] [2024-10-14 13:48:56,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711692527] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:48:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624348878] [2024-10-14 13:48:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:56,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:48:56,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:48:56,021 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) [2024-10-14 13:48:56,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:48:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:56,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 13:48:56,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:48:56,321 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 19 treesize of output 15 [2024-10-14 13:48:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:56,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 13:48:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624348878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 13:48:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-14 13:48:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690875916] [2024-10-14 13:48:56,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:56,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:48:56,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:48:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:48:56,434 INFO L87 Difference]: Start difference. First operand 382 states and 506 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:56,601 INFO L93 Difference]: Finished difference Result 738 states and 974 transitions. [2024-10-14 13:48:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:48:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-10-14 13:48:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:56,605 INFO L225 Difference]: With dead ends: 738 [2024-10-14 13:48:56,606 INFO L226 Difference]: Without dead ends: 530 [2024-10-14 13:48:56,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:48:56,609 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 35 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:56,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 525 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:48:56,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-14 13:48:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 474. [2024-10-14 13:48:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 406 states have (on average 1.2586206896551724) internal successors, (511), 409 states have internal predecessors, (511), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 53 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-14 13:48:56,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 623 transitions. [2024-10-14 13:48:56,672 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 623 transitions. Word has length 112 [2024-10-14 13:48:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:56,673 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 623 transitions. [2024-10-14 13:48:56,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 623 transitions. [2024-10-14 13:48:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:48:56,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:56,675 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:56,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 13:48:56,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:48:56,879 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:56,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash 482682528, now seen corresponding path program 1 times [2024-10-14 13:48:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:56,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131233102] [2024-10-14 13:48:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:56,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:57,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:57,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131233102] [2024-10-14 13:48:57,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131233102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:57,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:57,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:48:57,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9857412] [2024-10-14 13:48:57,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:57,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:48:57,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:48:57,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:48:57,358 INFO L87 Difference]: Start difference. First operand 474 states and 623 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:57,802 INFO L93 Difference]: Finished difference Result 805 states and 1059 transitions. [2024-10-14 13:48:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:48:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-10-14 13:48:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:57,806 INFO L225 Difference]: With dead ends: 805 [2024-10-14 13:48:57,806 INFO L226 Difference]: Without dead ends: 575 [2024-10-14 13:48:57,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:48:57,807 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 229 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:57,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 629 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:48:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-14 13:48:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 482. [2024-10-14 13:48:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 411 states have (on average 1.2506082725060828) internal successors, (514), 414 states have internal predecessors, (514), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 13:48:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 630 transitions. [2024-10-14 13:48:57,865 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 630 transitions. Word has length 112 [2024-10-14 13:48:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:57,866 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 630 transitions. [2024-10-14 13:48:57,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 630 transitions. [2024-10-14 13:48:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 13:48:57,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:57,867 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:57,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:48:57,868 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -233497402, now seen corresponding path program 1 times [2024-10-14 13:48:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829146736] [2024-10-14 13:48:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:58,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:58,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829146736] [2024-10-14 13:48:58,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829146736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:58,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:58,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:48:58,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301649106] [2024-10-14 13:48:58,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:58,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:48:58,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:58,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:48:58,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:48:58,268 INFO L87 Difference]: Start difference. First operand 482 states and 630 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:58,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:58,690 INFO L93 Difference]: Finished difference Result 826 states and 1082 transitions. [2024-10-14 13:48:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:48:58,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-10-14 13:48:58,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:58,694 INFO L225 Difference]: With dead ends: 826 [2024-10-14 13:48:58,694 INFO L226 Difference]: Without dead ends: 524 [2024-10-14 13:48:58,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:48:58,695 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 238 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:58,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 549 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:48:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-10-14 13:48:58,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 472. [2024-10-14 13:48:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 401 states have (on average 1.231920199501247) internal successors, (494), 404 states have internal predecessors, (494), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 13:48:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 610 transitions. [2024-10-14 13:48:58,759 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 610 transitions. Word has length 113 [2024-10-14 13:48:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:58,759 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 610 transitions. [2024-10-14 13:48:58,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 610 transitions. [2024-10-14 13:48:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 13:48:58,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:58,761 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:58,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 13:48:58,761 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:58,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash 137079932, now seen corresponding path program 1 times [2024-10-14 13:48:58,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:58,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596875663] [2024-10-14 13:48:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:48:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:48:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:48:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:48:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:48:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:48:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:48:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:48:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:48:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:48:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:48:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:48:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:48:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:48:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:48:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:48:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:48:59,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596875663] [2024-10-14 13:48:59,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596875663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:48:59,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:48:59,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:48:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544051852] [2024-10-14 13:48:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:48:59,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:48:59,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:48:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:48:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:48:59,152 INFO L87 Difference]: Start difference. First operand 472 states and 610 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:59,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:48:59,608 INFO L93 Difference]: Finished difference Result 806 states and 1050 transitions. [2024-10-14 13:48:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:48:59,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-10-14 13:48:59,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:48:59,612 INFO L225 Difference]: With dead ends: 806 [2024-10-14 13:48:59,612 INFO L226 Difference]: Without dead ends: 510 [2024-10-14 13:48:59,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:48:59,614 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 189 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:48:59,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 680 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:48:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-14 13:48:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 458. [2024-10-14 13:48:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 387 states have (on average 1.2299741602067182) internal successors, (476), 390 states have internal predecessors, (476), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 13:48:59,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 592 transitions. [2024-10-14 13:48:59,678 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 592 transitions. Word has length 113 [2024-10-14 13:48:59,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:48:59,678 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 592 transitions. [2024-10-14 13:48:59,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:48:59,679 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 592 transitions. [2024-10-14 13:48:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 13:48:59,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:48:59,680 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:48:59,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:48:59,681 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:48:59,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:48:59,681 INFO L85 PathProgramCache]: Analyzing trace with hash -874037318, now seen corresponding path program 1 times [2024-10-14 13:48:59,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:48:59,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039298710] [2024-10-14 13:48:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:48:59,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:48:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:00,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:00,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039298710] [2024-10-14 13:49:00,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039298710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:00,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:00,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:49:00,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119763477] [2024-10-14 13:49:00,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:00,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:49:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:00,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:49:00,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:00,427 INFO L87 Difference]: Start difference. First operand 458 states and 592 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:49:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:01,303 INFO L93 Difference]: Finished difference Result 740 states and 964 transitions. [2024-10-14 13:49:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:49:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-10-14 13:49:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:01,307 INFO L225 Difference]: With dead ends: 740 [2024-10-14 13:49:01,307 INFO L226 Difference]: Without dead ends: 510 [2024-10-14 13:49:01,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:49:01,309 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 443 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:01,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 833 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:49:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-14 13:49:01,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 462. [2024-10-14 13:49:01,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 391 states have (on average 1.227621483375959) internal successors, (480), 394 states have internal predecessors, (480), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 13:49:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 596 transitions. [2024-10-14 13:49:01,372 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 596 transitions. Word has length 113 [2024-10-14 13:49:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:01,372 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 596 transitions. [2024-10-14 13:49:01,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:49:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 596 transitions. [2024-10-14 13:49:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:01,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:01,374 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:01,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:49:01,375 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:01,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 775577554, now seen corresponding path program 1 times [2024-10-14 13:49:01,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:01,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31941857] [2024-10-14 13:49:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:01,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:01,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31941857] [2024-10-14 13:49:01,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31941857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:01,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:01,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:49:01,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441199796] [2024-10-14 13:49:01,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:01,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:49:01,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:01,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:49:01,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:49:01,848 INFO L87 Difference]: Start difference. First operand 462 states and 596 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:02,092 INFO L93 Difference]: Finished difference Result 886 states and 1142 transitions. [2024-10-14 13:49:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:49:02,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-10-14 13:49:02,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:02,095 INFO L225 Difference]: With dead ends: 886 [2024-10-14 13:49:02,095 INFO L226 Difference]: Without dead ends: 465 [2024-10-14 13:49:02,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:02,097 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 313 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:02,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 422 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:49:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-10-14 13:49:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 462. [2024-10-14 13:49:02,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 391 states have (on average 1.2225063938618925) internal successors, (478), 394 states have internal predecessors, (478), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 13:49:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 594 transitions. [2024-10-14 13:49:02,166 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 594 transitions. Word has length 114 [2024-10-14 13:49:02,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:02,166 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 594 transitions. [2024-10-14 13:49:02,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 594 transitions. [2024-10-14 13:49:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:02,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:02,168 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:02,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:49:02,169 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:02,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:02,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1476642132, now seen corresponding path program 1 times [2024-10-14 13:49:02,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:02,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939376609] [2024-10-14 13:49:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:02,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:02,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:02,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939376609] [2024-10-14 13:49:02,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939376609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:02,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:02,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:49:02,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369031269] [2024-10-14 13:49:02,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:02,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:49:02,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:02,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:49:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:49:02,663 INFO L87 Difference]: Start difference. First operand 462 states and 594 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:49:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:03,020 INFO L93 Difference]: Finished difference Result 887 states and 1139 transitions. [2024-10-14 13:49:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:49:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-14 13:49:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:03,024 INFO L225 Difference]: With dead ends: 887 [2024-10-14 13:49:03,024 INFO L226 Difference]: Without dead ends: 466 [2024-10-14 13:49:03,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:49:03,025 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 217 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:03,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 536 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:49:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-10-14 13:49:03,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 406. [2024-10-14 13:49:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 348 states have (on average 1.2241379310344827) internal successors, (426), 350 states have internal predecessors, (426), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 13:49:03,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 518 transitions. [2024-10-14 13:49:03,082 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 518 transitions. Word has length 114 [2024-10-14 13:49:03,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:03,082 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 518 transitions. [2024-10-14 13:49:03,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:49:03,083 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 518 transitions. [2024-10-14 13:49:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:03,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:03,084 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:03,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:49:03,084 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:03,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:03,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1533900434, now seen corresponding path program 1 times [2024-10-14 13:49:03,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:03,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609735272] [2024-10-14 13:49:03,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:03,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:03,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:03,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609735272] [2024-10-14 13:49:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609735272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:03,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:03,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:49:03,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305264819] [2024-10-14 13:49:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:03,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:49:03,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:49:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:49:03,521 INFO L87 Difference]: Start difference. First operand 406 states and 518 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:03,825 INFO L93 Difference]: Finished difference Result 862 states and 1093 transitions. [2024-10-14 13:49:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:49:03,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-14 13:49:03,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:03,828 INFO L225 Difference]: With dead ends: 862 [2024-10-14 13:49:03,828 INFO L226 Difference]: Without dead ends: 497 [2024-10-14 13:49:03,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:03,830 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 133 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:03,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 954 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:49:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-14 13:49:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 422. [2024-10-14 13:49:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 364 states have (on average 1.217032967032967) internal successors, (443), 366 states have internal predecessors, (443), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 13:49:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 535 transitions. [2024-10-14 13:49:03,887 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 535 transitions. Word has length 114 [2024-10-14 13:49:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:03,888 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 535 transitions. [2024-10-14 13:49:03,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:03,888 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 535 transitions. [2024-10-14 13:49:03,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:03,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:03,889 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:03,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 13:49:03,890 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:03,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:03,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1140873424, now seen corresponding path program 1 times [2024-10-14 13:49:03,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:03,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601299079] [2024-10-14 13:49:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:03,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:04,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:04,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601299079] [2024-10-14 13:49:04,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601299079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:04,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:04,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:49:04,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120341542] [2024-10-14 13:49:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:04,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:49:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:04,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:49:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:49:04,270 INFO L87 Difference]: Start difference. First operand 422 states and 535 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:04,551 INFO L93 Difference]: Finished difference Result 959 states and 1208 transitions. [2024-10-14 13:49:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:49:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-14 13:49:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:04,554 INFO L225 Difference]: With dead ends: 959 [2024-10-14 13:49:04,555 INFO L226 Difference]: Without dead ends: 578 [2024-10-14 13:49:04,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:49:04,556 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 249 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:04,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 769 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:49:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-10-14 13:49:04,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 538. [2024-10-14 13:49:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 480 states have (on average 1.2208333333333334) internal successors, (586), 481 states have internal predecessors, (586), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 13:49:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 678 transitions. [2024-10-14 13:49:04,617 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 678 transitions. Word has length 114 [2024-10-14 13:49:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:04,617 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 678 transitions. [2024-10-14 13:49:04,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 678 transitions. [2024-10-14 13:49:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:04,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:04,619 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:04,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:49:04,619 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:04,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1752755152, now seen corresponding path program 1 times [2024-10-14 13:49:04,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:04,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557733206] [2024-10-14 13:49:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:04,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:04,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:05,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557733206] [2024-10-14 13:49:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557733206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:05,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:05,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:49:05,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336717576] [2024-10-14 13:49:05,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:05,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:49:05,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:05,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:49:05,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:49:05,023 INFO L87 Difference]: Start difference. First operand 538 states and 678 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:05,299 INFO L93 Difference]: Finished difference Result 989 states and 1244 transitions. [2024-10-14 13:49:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:49:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-14 13:49:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:05,302 INFO L225 Difference]: With dead ends: 989 [2024-10-14 13:49:05,302 INFO L226 Difference]: Without dead ends: 564 [2024-10-14 13:49:05,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:05,305 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 162 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:05,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 546 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:49:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-10-14 13:49:05,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 532. [2024-10-14 13:49:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 474 states have (on average 1.2151898734177216) internal successors, (576), 475 states have internal predecessors, (576), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 13:49:05,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 668 transitions. [2024-10-14 13:49:05,362 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 668 transitions. Word has length 114 [2024-10-14 13:49:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:05,362 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 668 transitions. [2024-10-14 13:49:05,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 668 transitions. [2024-10-14 13:49:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:49:05,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:05,363 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:05,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 13:49:05,364 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:05,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 801471944, now seen corresponding path program 1 times [2024-10-14 13:49:05,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:05,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756349682] [2024-10-14 13:49:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:05,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:06,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:06,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756349682] [2024-10-14 13:49:06,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756349682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:06,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:06,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:49:06,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247680545] [2024-10-14 13:49:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:06,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:49:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:49:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:49:06,029 INFO L87 Difference]: Start difference. First operand 532 states and 668 transitions. Second operand has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:06,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:06,489 INFO L93 Difference]: Finished difference Result 834 states and 1049 transitions. [2024-10-14 13:49:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:49:06,490 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 114 [2024-10-14 13:49:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:06,493 INFO L225 Difference]: With dead ends: 834 [2024-10-14 13:49:06,493 INFO L226 Difference]: Without dead ends: 596 [2024-10-14 13:49:06,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:49:06,495 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 158 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:06,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 483 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:49:06,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-10-14 13:49:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 592. [2024-10-14 13:49:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 526 states have (on average 1.203422053231939) internal successors, (633), 529 states have internal predecessors, (633), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 47 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-14 13:49:06,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 733 transitions. [2024-10-14 13:49:06,595 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 733 transitions. Word has length 114 [2024-10-14 13:49:06,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:06,595 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 733 transitions. [2024-10-14 13:49:06,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 733 transitions. [2024-10-14 13:49:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 13:49:06,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:06,597 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:06,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 13:49:06,598 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:06,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:06,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1704953576, now seen corresponding path program 1 times [2024-10-14 13:49:06,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:06,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993322575] [2024-10-14 13:49:06,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:06,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:08,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:08,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993322575] [2024-10-14 13:49:08,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993322575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:08,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:08,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 13:49:08,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495122482] [2024-10-14 13:49:08,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:08,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 13:49:08,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:08,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 13:49:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:49:08,659 INFO L87 Difference]: Start difference. First operand 592 states and 733 transitions. Second operand has 18 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:10,056 INFO L93 Difference]: Finished difference Result 971 states and 1211 transitions. [2024-10-14 13:49:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:49:10,056 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 115 [2024-10-14 13:49:10,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:10,060 INFO L225 Difference]: With dead ends: 971 [2024-10-14 13:49:10,060 INFO L226 Difference]: Without dead ends: 681 [2024-10-14 13:49:10,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2024-10-14 13:49:10,062 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 597 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:10,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 800 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:49:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-10-14 13:49:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 644. [2024-10-14 13:49:10,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 570 states have (on average 1.2105263157894737) internal successors, (690), 574 states have internal predecessors, (690), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 52 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-14 13:49:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 802 transitions. [2024-10-14 13:49:10,183 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 802 transitions. Word has length 115 [2024-10-14 13:49:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:10,183 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 802 transitions. [2024-10-14 13:49:10,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.0) internal successors, (48), 17 states have internal predecessors, (48), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 802 transitions. [2024-10-14 13:49:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 13:49:10,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:10,185 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:10,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 13:49:10,186 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:10,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1812496647, now seen corresponding path program 1 times [2024-10-14 13:49:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:10,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058601852] [2024-10-14 13:49:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:12,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058601852] [2024-10-14 13:49:12,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058601852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:12,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:12,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-14 13:49:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940729608] [2024-10-14 13:49:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:12,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 13:49:12,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:12,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 13:49:12,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2024-10-14 13:49:12,087 INFO L87 Difference]: Start difference. First operand 644 states and 802 transitions. Second operand has 21 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:13,895 INFO L93 Difference]: Finished difference Result 1237 states and 1555 transitions. [2024-10-14 13:49:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 13:49:13,896 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 116 [2024-10-14 13:49:13,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:13,901 INFO L225 Difference]: With dead ends: 1237 [2024-10-14 13:49:13,901 INFO L226 Difference]: Without dead ends: 887 [2024-10-14 13:49:13,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 13:49:13,903 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 396 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:13,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1596 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 13:49:13,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-10-14 13:49:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 870. [2024-10-14 13:49:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 778 states have (on average 1.2197943444730077) internal successors, (949), 784 states have internal predecessors, (949), 70 states have call successors, (70), 21 states have call predecessors, (70), 21 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-10-14 13:49:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1089 transitions. [2024-10-14 13:49:14,023 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1089 transitions. Word has length 116 [2024-10-14 13:49:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:14,023 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1089 transitions. [2024-10-14 13:49:14,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1089 transitions. [2024-10-14 13:49:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 13:49:14,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:14,025 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:14,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 13:49:14,025 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:14,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:14,026 INFO L85 PathProgramCache]: Analyzing trace with hash 218752064, now seen corresponding path program 1 times [2024-10-14 13:49:14,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:14,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303049515] [2024-10-14 13:49:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:14,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:14,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:14,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303049515] [2024-10-14 13:49:14,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303049515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:14,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:14,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:49:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241289271] [2024-10-14 13:49:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:14,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:49:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:14,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:49:14,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:49:14,590 INFO L87 Difference]: Start difference. First operand 870 states and 1089 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:15,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:15,172 INFO L93 Difference]: Finished difference Result 1758 states and 2200 transitions. [2024-10-14 13:49:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:49:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-10-14 13:49:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:15,178 INFO L225 Difference]: With dead ends: 1758 [2024-10-14 13:49:15,178 INFO L226 Difference]: Without dead ends: 1269 [2024-10-14 13:49:15,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:49:15,180 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 183 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:15,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1137 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:49:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-10-14 13:49:15,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1013. [2024-10-14 13:49:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 915 states have (on average 1.2153005464480875) internal successors, (1112), 922 states have internal predecessors, (1112), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1260 transitions. [2024-10-14 13:49:15,295 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1260 transitions. Word has length 117 [2024-10-14 13:49:15,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:15,295 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1260 transitions. [2024-10-14 13:49:15,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1260 transitions. [2024-10-14 13:49:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:15,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:15,297 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:15,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 13:49:15,297 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:15,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:15,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1123155923, now seen corresponding path program 1 times [2024-10-14 13:49:15,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:15,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260164925] [2024-10-14 13:49:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:15,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:15,944 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:15,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260164925] [2024-10-14 13:49:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260164925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:15,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:15,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:49:15,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531130157] [2024-10-14 13:49:15,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:15,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:49:15,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:49:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:49:15,947 INFO L87 Difference]: Start difference. First operand 1013 states and 1260 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:16,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:16,472 INFO L93 Difference]: Finished difference Result 1904 states and 2395 transitions. [2024-10-14 13:49:16,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:49:16,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-14 13:49:16,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:16,479 INFO L225 Difference]: With dead ends: 1904 [2024-10-14 13:49:16,479 INFO L226 Difference]: Without dead ends: 1277 [2024-10-14 13:49:16,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:49:16,481 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 268 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:16,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 748 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:49:16,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-10-14 13:49:16,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1135. [2024-10-14 13:49:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1037 states have (on average 1.2217936354869816) internal successors, (1267), 1044 states have internal predecessors, (1267), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:16,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1415 transitions. [2024-10-14 13:49:16,621 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1415 transitions. Word has length 118 [2024-10-14 13:49:16,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:16,622 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1415 transitions. [2024-10-14 13:49:16,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:16,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1415 transitions. [2024-10-14 13:49:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:16,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:16,623 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:16,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 13:49:16,624 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:16,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2144224277, now seen corresponding path program 1 times [2024-10-14 13:49:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:16,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298938341] [2024-10-14 13:49:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:17,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298938341] [2024-10-14 13:49:17,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298938341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:17,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:17,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 13:49:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056574648] [2024-10-14 13:49:17,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:17,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 13:49:17,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 13:49:17,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:49:17,369 INFO L87 Difference]: Start difference. First operand 1135 states and 1415 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:18,546 INFO L93 Difference]: Finished difference Result 2102 states and 2639 transitions. [2024-10-14 13:49:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:49:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-14 13:49:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:18,553 INFO L225 Difference]: With dead ends: 2102 [2024-10-14 13:49:18,554 INFO L226 Difference]: Without dead ends: 1428 [2024-10-14 13:49:18,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-10-14 13:49:18,556 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 378 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:18,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1083 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:49:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-10-14 13:49:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1142. [2024-10-14 13:49:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1043 states have (on average 1.2233940556088208) internal successors, (1276), 1050 states have internal predecessors, (1276), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1424 transitions. [2024-10-14 13:49:18,702 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1424 transitions. Word has length 118 [2024-10-14 13:49:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:18,703 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1424 transitions. [2024-10-14 13:49:18,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1424 transitions. [2024-10-14 13:49:18,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:18,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:18,704 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:18,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 13:49:18,704 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:18,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:18,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1196507295, now seen corresponding path program 1 times [2024-10-14 13:49:18,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:18,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394492392] [2024-10-14 13:49:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:18,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:19,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:19,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394492392] [2024-10-14 13:49:19,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394492392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:19,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:19,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:49:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985887655] [2024-10-14 13:49:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:19,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:49:19,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:19,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:49:19,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:19,372 INFO L87 Difference]: Start difference. First operand 1142 states and 1424 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:19,787 INFO L93 Difference]: Finished difference Result 1816 states and 2279 transitions. [2024-10-14 13:49:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:49:19,788 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-14 13:49:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:19,793 INFO L225 Difference]: With dead ends: 1816 [2024-10-14 13:49:19,793 INFO L226 Difference]: Without dead ends: 1160 [2024-10-14 13:49:19,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:49:19,795 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 79 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:19,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1400 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:49:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-10-14 13:49:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1157. [2024-10-14 13:49:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1058 states have (on average 1.220226843100189) internal successors, (1291), 1065 states have internal predecessors, (1291), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1439 transitions. [2024-10-14 13:49:19,930 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1439 transitions. Word has length 118 [2024-10-14 13:49:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:19,931 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1439 transitions. [2024-10-14 13:49:19,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:19,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1439 transitions. [2024-10-14 13:49:19,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:19,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:19,932 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:19,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 13:49:19,933 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:19,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1034100883, now seen corresponding path program 1 times [2024-10-14 13:49:19,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:19,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404067802] [2024-10-14 13:49:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:19,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:20,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404067802] [2024-10-14 13:49:20,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404067802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:20,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:20,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:49:20,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317472516] [2024-10-14 13:49:20,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:20,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:49:20,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:49:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:49:20,655 INFO L87 Difference]: Start difference. First operand 1157 states and 1439 transitions. Second operand has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:21,374 INFO L93 Difference]: Finished difference Result 2117 states and 2661 transitions. [2024-10-14 13:49:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:49:21,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2024-10-14 13:49:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:21,380 INFO L225 Difference]: With dead ends: 2117 [2024-10-14 13:49:21,380 INFO L226 Difference]: Without dead ends: 1437 [2024-10-14 13:49:21,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:49:21,382 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 335 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:21,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 892 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:49:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-10-14 13:49:21,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1282. [2024-10-14 13:49:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1183 states have (on average 1.2248520710059172) internal successors, (1449), 1190 states have internal predecessors, (1449), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1597 transitions. [2024-10-14 13:49:21,551 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1597 transitions. Word has length 118 [2024-10-14 13:49:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:21,551 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1597 transitions. [2024-10-14 13:49:21,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1597 transitions. [2024-10-14 13:49:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:21,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:21,553 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:21,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 13:49:21,553 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:21,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:21,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2045218133, now seen corresponding path program 1 times [2024-10-14 13:49:21,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:21,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726148130] [2024-10-14 13:49:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:21,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:22,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:22,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726148130] [2024-10-14 13:49:22,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726148130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:22,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:22,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 13:49:22,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53656235] [2024-10-14 13:49:22,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:22,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 13:49:22,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:22,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 13:49:22,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:49:22,643 INFO L87 Difference]: Start difference. First operand 1282 states and 1597 transitions. Second operand has 19 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:23,908 INFO L93 Difference]: Finished difference Result 2433 states and 3046 transitions. [2024-10-14 13:49:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:49:23,908 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2024-10-14 13:49:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:23,913 INFO L225 Difference]: With dead ends: 2433 [2024-10-14 13:49:23,913 INFO L226 Difference]: Without dead ends: 1683 [2024-10-14 13:49:23,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 13:49:23,915 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 623 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:23,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1326 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:49:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-10-14 13:49:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1285. [2024-10-14 13:49:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1186 states have (on average 1.218381112984823) internal successors, (1445), 1193 states have internal predecessors, (1445), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1593 transitions. [2024-10-14 13:49:24,064 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1593 transitions. Word has length 118 [2024-10-14 13:49:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:24,065 INFO L471 AbstractCegarLoop]: Abstraction has 1285 states and 1593 transitions. [2024-10-14 13:49:24,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.0) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1593 transitions. [2024-10-14 13:49:24,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:24,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:24,066 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:24,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 13:49:24,066 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:24,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:24,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1100523669, now seen corresponding path program 1 times [2024-10-14 13:49:24,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:24,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591301990] [2024-10-14 13:49:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:24,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:24,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:24,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591301990] [2024-10-14 13:49:24,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591301990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:24,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:49:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740447253] [2024-10-14 13:49:24,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:24,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:49:24,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:24,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:49:24,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:49:24,584 INFO L87 Difference]: Start difference. First operand 1285 states and 1593 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:25,171 INFO L93 Difference]: Finished difference Result 2447 states and 3056 transitions. [2024-10-14 13:49:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:49:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-14 13:49:25,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:25,179 INFO L225 Difference]: With dead ends: 2447 [2024-10-14 13:49:25,179 INFO L226 Difference]: Without dead ends: 1683 [2024-10-14 13:49:25,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:49:25,182 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 254 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:25,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1020 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:49:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-10-14 13:49:25,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1291. [2024-10-14 13:49:25,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1192 states have (on average 1.2139261744966443) internal successors, (1447), 1199 states have internal predecessors, (1447), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:25,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1595 transitions. [2024-10-14 13:49:25,323 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1595 transitions. Word has length 118 [2024-10-14 13:49:25,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:25,324 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1595 transitions. [2024-10-14 13:49:25,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1595 transitions. [2024-10-14 13:49:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:25,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:25,325 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:25,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 13:49:25,325 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:25,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2121592023, now seen corresponding path program 1 times [2024-10-14 13:49:25,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:25,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367168830] [2024-10-14 13:49:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:26,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:26,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367168830] [2024-10-14 13:49:26,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367168830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-14 13:49:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510185952] [2024-10-14 13:49:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:26,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 13:49:26,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 13:49:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-10-14 13:49:26,597 INFO L87 Difference]: Start difference. First operand 1291 states and 1595 transitions. Second operand has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:28,494 INFO L93 Difference]: Finished difference Result 2732 states and 3371 transitions. [2024-10-14 13:49:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 13:49:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 118 [2024-10-14 13:49:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:28,500 INFO L225 Difference]: With dead ends: 2732 [2024-10-14 13:49:28,500 INFO L226 Difference]: Without dead ends: 2002 [2024-10-14 13:49:28,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=338, Invalid=1302, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 13:49:28,501 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1126 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:28,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 1419 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 13:49:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2024-10-14 13:49:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1323. [2024-10-14 13:49:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1224 states have (on average 1.2116013071895424) internal successors, (1483), 1231 states have internal predecessors, (1483), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1631 transitions. [2024-10-14 13:49:28,624 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1631 transitions. Word has length 118 [2024-10-14 13:49:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:28,624 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1631 transitions. [2024-10-14 13:49:28,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 20 states have internal predecessors, (51), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-14 13:49:28,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1631 transitions. [2024-10-14 13:49:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:28,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:28,626 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:28,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 13:49:28,626 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:28,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1162258023, now seen corresponding path program 1 times [2024-10-14 13:49:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:28,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916830221] [2024-10-14 13:49:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:28,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:29,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:29,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916830221] [2024-10-14 13:49:29,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916830221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:29,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:29,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:49:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62934951] [2024-10-14 13:49:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:29,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:49:29,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:49:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:49:29,357 INFO L87 Difference]: Start difference. First operand 1323 states and 1631 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:30,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:30,479 INFO L93 Difference]: Finished difference Result 2627 states and 3251 transitions. [2024-10-14 13:49:30,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 13:49:30,480 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-14 13:49:30,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:30,486 INFO L225 Difference]: With dead ends: 2627 [2024-10-14 13:49:30,486 INFO L226 Difference]: Without dead ends: 1852 [2024-10-14 13:49:30,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2024-10-14 13:49:30,488 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 559 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:30,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1224 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:49:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-10-14 13:49:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1283. [2024-10-14 13:49:30,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1184 states have (on average 1.2119932432432432) internal successors, (1435), 1191 states have internal predecessors, (1435), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1583 transitions. [2024-10-14 13:49:30,624 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1583 transitions. Word has length 118 [2024-10-14 13:49:30,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:30,624 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1583 transitions. [2024-10-14 13:49:30,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1583 transitions. [2024-10-14 13:49:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:30,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:30,625 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:30,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 13:49:30,626 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:30,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1840697691, now seen corresponding path program 1 times [2024-10-14 13:49:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285769220] [2024-10-14 13:49:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285769220] [2024-10-14 13:49:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285769220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:31,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:31,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:49:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366464084] [2024-10-14 13:49:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:31,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:49:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:49:31,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:49:31,141 INFO L87 Difference]: Start difference. First operand 1283 states and 1583 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:32,069 INFO L93 Difference]: Finished difference Result 2498 states and 3104 transitions. [2024-10-14 13:49:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:49:32,070 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-10-14 13:49:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:32,075 INFO L225 Difference]: With dead ends: 2498 [2024-10-14 13:49:32,075 INFO L226 Difference]: Without dead ends: 1752 [2024-10-14 13:49:32,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-10-14 13:49:32,077 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 621 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:32,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1005 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:49:32,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2024-10-14 13:49:32,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1297. [2024-10-14 13:49:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1198 states have (on average 1.2128547579298832) internal successors, (1453), 1205 states have internal predecessors, (1453), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1601 transitions. [2024-10-14 13:49:32,216 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1601 transitions. Word has length 118 [2024-10-14 13:49:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:32,216 INFO L471 AbstractCegarLoop]: Abstraction has 1297 states and 1601 transitions. [2024-10-14 13:49:32,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:49:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1601 transitions. [2024-10-14 13:49:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:32,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:32,217 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:32,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 13:49:32,218 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:32,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:32,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1443152355, now seen corresponding path program 1 times [2024-10-14 13:49:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:32,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936258261] [2024-10-14 13:49:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:33,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:33,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936258261] [2024-10-14 13:49:33,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936258261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:33,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:33,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-14 13:49:33,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412306897] [2024-10-14 13:49:33,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:33,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 13:49:33,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:33,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 13:49:33,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:49:33,613 INFO L87 Difference]: Start difference. First operand 1297 states and 1601 transitions. Second operand has 23 states, 20 states have (on average 2.55) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-14 13:49:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:36,144 INFO L93 Difference]: Finished difference Result 2351 states and 2902 transitions. [2024-10-14 13:49:36,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 13:49:36,144 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.55) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) Word has length 118 [2024-10-14 13:49:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:36,149 INFO L225 Difference]: With dead ends: 2351 [2024-10-14 13:49:36,149 INFO L226 Difference]: Without dead ends: 1616 [2024-10-14 13:49:36,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=354, Invalid=1368, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 13:49:36,151 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 511 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:36,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1831 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 13:49:36,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-10-14 13:49:36,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1305. [2024-10-14 13:49:36,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1206 states have (on average 1.208955223880597) internal successors, (1458), 1213 states have internal predecessors, (1458), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:49:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1606 transitions. [2024-10-14 13:49:36,315 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1606 transitions. Word has length 118 [2024-10-14 13:49:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:49:36,317 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1606 transitions. [2024-10-14 13:49:36,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.55) internal successors, (51), 21 states have internal predecessors, (51), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-14 13:49:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1606 transitions. [2024-10-14 13:49:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:49:36,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:49:36,318 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:49:36,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 13:49:36,319 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:49:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:49:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1320719461, now seen corresponding path program 1 times [2024-10-14 13:49:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:49:36,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699882751] [2024-10-14 13:49:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:49:36,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:49:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:49:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:49:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:49:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:49:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:49:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:49:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:49:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:49:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:49:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:49:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:49:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:49:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:49:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:49:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:49:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:49:36,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:49:36,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699882751] [2024-10-14 13:49:36,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699882751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:49:36,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:49:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:49:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635761910] [2024-10-14 13:49:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:49:36,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:49:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:49:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:49:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:49:36,871 INFO L87 Difference]: Start difference. First operand 1305 states and 1606 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:49:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:49:37,696 INFO L93 Difference]: Finished difference Result 2492 states and 3075 transitions. [2024-10-14 13:49:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 13:49:37,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-14 13:49:37,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:49:37,701 INFO L225 Difference]: With dead ends: 2492 [2024-10-14 13:49:37,702 INFO L226 Difference]: Without dead ends: 1680 [2024-10-14 13:49:37,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:49:37,703 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 286 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:49:37,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 978 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:49:37,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states.