./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-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-32.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 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:36:16,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:36:16,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:36:16,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:36:16,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:36:16,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:36:16,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:36:16,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:36:16,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:36:16,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:36:16,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:36:16,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:36:16,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:36:16,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:36:16,979 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:36:16,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:36:16,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:36:16,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:36:16,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:36:16,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:36:16,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:36:16,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:36:16,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:36:16,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:36:16,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:36:16,986 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:36:16,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:36:16,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:36:16,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:36:16,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:36:16,988 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:36:16,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:36:16,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:36:16,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:36:16,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:36:16,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:36:16,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:36:17,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:36:17,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:36:17,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:36:17,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:36:17,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:36:17,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50aaa9c38941e3902867fed1ab11249c92826155dddcdcedd0a40439bce25b5e [2024-10-24 11:36:17,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:36:17,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:36:17,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:36:17,280 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:36:17,280 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:36:17,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-10-24 11:36:18,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:36:18,898 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:36:18,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-32.i [2024-10-24 11:36:18,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b641e42/0f8717397eee48be9c33525e7dc2236e/FLAGd3c2f5b9f [2024-10-24 11:36:18,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b641e42/0f8717397eee48be9c33525e7dc2236e [2024-10-24 11:36:18,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:36:18,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:36:18,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:36:18,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:36:18,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:36:18,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:18" (1/1) ... [2024-10-24 11:36:18,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b004a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:18, skipping insertion in model container [2024-10-24 11:36:18,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:18" (1/1) ... [2024-10-24 11:36:18,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:36:19,148 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-32.i[916,929] [2024-10-24 11:36:19,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:36:19,213 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:36:19,226 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-32.i[916,929] [2024-10-24 11:36:19,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:36:19,286 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:36:19,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19 WrapperNode [2024-10-24 11:36:19,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:36:19,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:36:19,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:36:19,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:36:19,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,354 INFO L138 Inliner]: procedures = 26, calls = 165, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2024-10-24 11:36:19,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:36:19,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:36:19,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:36:19,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:36:19,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,413 INFO L175 MemorySlicer]: Split 124 memory accesses to 13 slices as follows [2, 7, 18, 20, 8, 8, 12, 12, 8, 6, 7, 10, 6]. 16 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 15 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1]. [2024-10-24 11:36:19,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:36:19,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:36:19,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:36:19,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:36:19,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (1/1) ... [2024-10-24 11:36:19,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:36:19,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:36:19,494 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) [2024-10-24 11:36:19,500 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 [2024-10-24 11:36:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:36:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:36:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 11:36:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-24 11:36:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-24 11:36:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:36:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:36:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:36:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:36:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:36:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:36:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:36:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 11:36:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 11:36:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 11:36:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-24 11:36:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-24 11:36:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:36:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:36:19,730 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:36:19,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:36:20,211 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-24 11:36:20,211 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:36:20,252 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:36:20,253 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:36:20,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:20 BoogieIcfgContainer [2024-10-24 11:36:20,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:36:20,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:36:20,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:36:20,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:36:20,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:36:18" (1/3) ... [2024-10-24 11:36:20,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e741ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:20, skipping insertion in model container [2024-10-24 11:36:20,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:19" (2/3) ... [2024-10-24 11:36:20,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e741ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:20, skipping insertion in model container [2024-10-24 11:36:20,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:20" (3/3) ... [2024-10-24 11:36:20,287 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-32.i [2024-10-24 11:36:20,300 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:36:20,301 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:36:20,392 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:36:20,398 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;@4887e6fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:36:20,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:36:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:36:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 11:36:20,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:20,419 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:20,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:20,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:20,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2144138923, now seen corresponding path program 1 times [2024-10-24 11:36:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:20,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904245771] [2024-10-24 11:36:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:20,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:20,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904245771] [2024-10-24 11:36:20,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904245771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:20,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:36:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180351356] [2024-10-24 11:36:20,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:20,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:36:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:36:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:36:20,967 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:36:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:21,025 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2024-10-24 11:36:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:36:21,029 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2024-10-24 11:36:21,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:21,038 INFO L225 Difference]: With dead ends: 181 [2024-10-24 11:36:21,039 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 11:36:21,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:36:21,049 INFO L432 NwaCegarLoop]: 123 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, 123 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 [2024-10-24 11:36:21,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:36:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 11:36:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-24 11:36:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:36:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2024-10-24 11:36:21,102 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2024-10-24 11:36:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:21,103 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2024-10-24 11:36:21,103 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:36:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2024-10-24 11:36:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 11:36:21,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:21,110 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:21,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:36:21,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:21,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:21,113 INFO L85 PathProgramCache]: Analyzing trace with hash -889367759, now seen corresponding path program 1 times [2024-10-24 11:36:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:21,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603231343] [2024-10-24 11:36:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:21,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:21,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:21,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603231343] [2024-10-24 11:36:21,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603231343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:21,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:21,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:36:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773947262] [2024-10-24 11:36:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:21,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:36:21,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:21,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:36:21,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:36:21,638 INFO L87 Difference]: Start difference. First operand 90 states and 127 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:21,854 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-10-24 11:36:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:36:21,856 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-10-24 11:36:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:21,859 INFO L225 Difference]: With dead ends: 306 [2024-10-24 11:36:21,859 INFO L226 Difference]: Without dead ends: 217 [2024-10-24 11:36:21,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:21,863 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 206 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:21,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 350 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:36:21,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-24 11:36:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 185. [2024-10-24 11:36:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 146 states have (on average 1.3013698630136987) internal successors, (190), 146 states have internal predecessors, (190), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:36:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 262 transitions. [2024-10-24 11:36:21,912 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 262 transitions. Word has length 124 [2024-10-24 11:36:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 262 transitions. [2024-10-24 11:36:21,914 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 262 transitions. [2024-10-24 11:36:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 11:36:21,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:21,917 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:21,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:36:21,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:21,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:21,927 INFO L85 PathProgramCache]: Analyzing trace with hash 992937815, now seen corresponding path program 1 times [2024-10-24 11:36:21,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94760709] [2024-10-24 11:36:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94760709] [2024-10-24 11:36:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94760709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:22,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:22,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:36:22,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156654641] [2024-10-24 11:36:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:22,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:36:22,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:36:22,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:36:22,980 INFO L87 Difference]: Start difference. First operand 185 states and 262 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:23,253 INFO L93 Difference]: Finished difference Result 493 states and 696 transitions. [2024-10-24 11:36:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:36:23,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 132 [2024-10-24 11:36:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:23,257 INFO L225 Difference]: With dead ends: 493 [2024-10-24 11:36:23,259 INFO L226 Difference]: Without dead ends: 309 [2024-10-24 11:36:23,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:36:23,261 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 76 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:23,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 882 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:36:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-10-24 11:36:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2024-10-24 11:36:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 256 states have (on average 1.33203125) internal successors, (341), 258 states have internal predecessors, (341), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:36:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 429 transitions. [2024-10-24 11:36:23,310 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 429 transitions. Word has length 132 [2024-10-24 11:36:23,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:23,310 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 429 transitions. [2024-10-24 11:36:23,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 429 transitions. [2024-10-24 11:36:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:36:23,313 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:23,313 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:23,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:36:23,314 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:23,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1563946672, now seen corresponding path program 1 times [2024-10-24 11:36:23,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142637692] [2024-10-24 11:36:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:24,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:24,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142637692] [2024-10-24 11:36:24,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142637692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:24,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:36:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939643195] [2024-10-24 11:36:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:24,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:36:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:24,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:36:24,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:36:24,429 INFO L87 Difference]: Start difference. First operand 305 states and 429 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:25,182 INFO L93 Difference]: Finished difference Result 637 states and 891 transitions. [2024-10-24 11:36:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:36:25,183 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-10-24 11:36:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:25,187 INFO L225 Difference]: With dead ends: 637 [2024-10-24 11:36:25,187 INFO L226 Difference]: Without dead ends: 333 [2024-10-24 11:36:25,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-24 11:36:25,189 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 283 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:25,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 850 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:36:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-24 11:36:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 303. [2024-10-24 11:36:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 254 states have (on average 1.3267716535433072) internal successors, (337), 256 states have internal predecessors, (337), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:36:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 425 transitions. [2024-10-24 11:36:25,215 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 425 transitions. Word has length 134 [2024-10-24 11:36:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:25,218 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 425 transitions. [2024-10-24 11:36:25,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 425 transitions. [2024-10-24 11:36:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:36:25,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:25,220 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:25,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:36:25,221 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:25,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:25,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1420162732, now seen corresponding path program 1 times [2024-10-24 11:36:25,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:25,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406969693] [2024-10-24 11:36:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:25,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406969693] [2024-10-24 11:36:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406969693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:25,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:25,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57181966] [2024-10-24 11:36:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:25,472 INFO L87 Difference]: Start difference. First operand 303 states and 425 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:25,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:25,522 INFO L93 Difference]: Finished difference Result 617 states and 865 transitions. [2024-10-24 11:36:25,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:25,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2024-10-24 11:36:25,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:25,526 INFO L225 Difference]: With dead ends: 617 [2024-10-24 11:36:25,526 INFO L226 Difference]: Without dead ends: 315 [2024-10-24 11:36:25,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:25,528 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:25,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 470 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:36:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-24 11:36:25,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-10-24 11:36:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 266 states have (on average 1.3120300751879699) internal successors, (349), 268 states have internal predecessors, (349), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:36:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 437 transitions. [2024-10-24 11:36:25,547 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 437 transitions. Word has length 134 [2024-10-24 11:36:25,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:25,547 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 437 transitions. [2024-10-24 11:36:25,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:25,548 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 437 transitions. [2024-10-24 11:36:25,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 11:36:25,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:25,549 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:25,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:36:25,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:25,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:25,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1966748496, now seen corresponding path program 1 times [2024-10-24 11:36:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:25,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073097705] [2024-10-24 11:36:25,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:25,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:26,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:26,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073097705] [2024-10-24 11:36:26,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073097705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:26,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:26,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:36:26,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787426935] [2024-10-24 11:36:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:26,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:36:26,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:26,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:36:26,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:36:26,850 INFO L87 Difference]: Start difference. First operand 315 states and 437 transitions. Second operand has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:27,977 INFO L93 Difference]: Finished difference Result 673 states and 927 transitions. [2024-10-24 11:36:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:36:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2024-10-24 11:36:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:27,982 INFO L225 Difference]: With dead ends: 673 [2024-10-24 11:36:27,982 INFO L226 Difference]: Without dead ends: 359 [2024-10-24 11:36:27,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-10-24 11:36:27,984 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 412 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:27,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1080 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:36:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-24 11:36:28,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 320. [2024-10-24 11:36:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 271 states have (on average 1.3062730627306274) internal successors, (354), 273 states have internal predecessors, (354), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:36:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 442 transitions. [2024-10-24 11:36:28,015 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 442 transitions. Word has length 134 [2024-10-24 11:36:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:28,016 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 442 transitions. [2024-10-24 11:36:28,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 442 transitions. [2024-10-24 11:36:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:36:28,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:28,019 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:28,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 11:36:28,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:28,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash 909034632, now seen corresponding path program 1 times [2024-10-24 11:36:28,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:28,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623517587] [2024-10-24 11:36:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:28,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:29,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:29,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623517587] [2024-10-24 11:36:29,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623517587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:29,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:29,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:36:29,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127867507] [2024-10-24 11:36:29,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:29,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:36:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:36:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:36:29,104 INFO L87 Difference]: Start difference. First operand 320 states and 442 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:30,726 INFO L93 Difference]: Finished difference Result 606 states and 833 transitions. [2024-10-24 11:36:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:36:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-24 11:36:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:30,729 INFO L225 Difference]: With dead ends: 606 [2024-10-24 11:36:30,731 INFO L226 Difference]: Without dead ends: 454 [2024-10-24 11:36:30,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-10-24 11:36:30,732 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 321 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:30,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 1654 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 11:36:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-10-24 11:36:30,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 333. [2024-10-24 11:36:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 284 states have (on average 1.3098591549295775) internal successors, (372), 286 states have internal predecessors, (372), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-24 11:36:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 460 transitions. [2024-10-24 11:36:30,764 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 460 transitions. Word has length 135 [2024-10-24 11:36:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:30,764 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 460 transitions. [2024-10-24 11:36:30,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 460 transitions. [2024-10-24 11:36:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:36:30,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:30,768 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:30,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:36:30,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:30,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:30,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2098488615, now seen corresponding path program 1 times [2024-10-24 11:36:30,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:30,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936826513] [2024-10-24 11:36:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:31,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:31,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936826513] [2024-10-24 11:36:31,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936826513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:31,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:36:31,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815808842] [2024-10-24 11:36:31,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:31,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:36:31,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:31,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:36:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:36:31,656 INFO L87 Difference]: Start difference. First operand 333 states and 460 transitions. Second operand has 12 states, 10 states have (on average 4.9) internal successors, (49), 12 states have internal predecessors, (49), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:32,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:32,384 INFO L93 Difference]: Finished difference Result 953 states and 1307 transitions. [2024-10-24 11:36:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:36:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.9) internal successors, (49), 12 states have internal predecessors, (49), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 136 [2024-10-24 11:36:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:32,389 INFO L225 Difference]: With dead ends: 953 [2024-10-24 11:36:32,389 INFO L226 Difference]: Without dead ends: 621 [2024-10-24 11:36:32,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:36:32,391 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 564 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:32,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 687 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:36:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-10-24 11:36:32,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 599. [2024-10-24 11:36:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 496 states have (on average 1.2883064516129032) internal successors, (639), 501 states have internal predecessors, (639), 92 states have call successors, (92), 10 states have call predecessors, (92), 10 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-10-24 11:36:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 823 transitions. [2024-10-24 11:36:32,461 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 823 transitions. Word has length 136 [2024-10-24 11:36:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:32,461 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 823 transitions. [2024-10-24 11:36:32,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.9) internal successors, (49), 12 states have internal predecessors, (49), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 823 transitions. [2024-10-24 11:36:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:36:32,463 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:32,463 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:32,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:36:32,464 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:32,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1941406328, now seen corresponding path program 1 times [2024-10-24 11:36:32,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:32,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614556615] [2024-10-24 11:36:32,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:32,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:32,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614556615] [2024-10-24 11:36:32,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614556615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:32,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:32,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:36:32,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829006734] [2024-10-24 11:36:32,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:32,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:36:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:32,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:36:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:32,945 INFO L87 Difference]: Start difference. First operand 599 states and 823 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:33,109 INFO L93 Difference]: Finished difference Result 1006 states and 1348 transitions. [2024-10-24 11:36:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:36:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2024-10-24 11:36:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:33,115 INFO L225 Difference]: With dead ends: 1006 [2024-10-24 11:36:33,115 INFO L226 Difference]: Without dead ends: 1004 [2024-10-24 11:36:33,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:36:33,116 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 54 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:33,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 641 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:33,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-10-24 11:36:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 817. [2024-10-24 11:36:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 700 states have (on average 1.2742857142857142) internal successors, (892), 707 states have internal predecessors, (892), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-24 11:36:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1100 transitions. [2024-10-24 11:36:33,205 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1100 transitions. Word has length 136 [2024-10-24 11:36:33,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:33,206 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1100 transitions. [2024-10-24 11:36:33,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1100 transitions. [2024-10-24 11:36:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:36:33,208 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:33,208 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:33,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:36:33,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:33,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash 573751753, now seen corresponding path program 1 times [2024-10-24 11:36:33,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:33,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896327139] [2024-10-24 11:36:33,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:33,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:33,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:33,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896327139] [2024-10-24 11:36:33,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896327139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:33,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:33,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:36:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326987936] [2024-10-24 11:36:33,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:33,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:36:33,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:33,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:36:33,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:36:33,911 INFO L87 Difference]: Start difference. First operand 817 states and 1100 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:34,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:34,467 INFO L93 Difference]: Finished difference Result 1731 states and 2327 transitions. [2024-10-24 11:36:34,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:36:34,468 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2024-10-24 11:36:34,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:34,473 INFO L225 Difference]: With dead ends: 1731 [2024-10-24 11:36:34,473 INFO L226 Difference]: Without dead ends: 915 [2024-10-24 11:36:34,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:36:34,476 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 62 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:34,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1622 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:36:34,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-10-24 11:36:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 842. [2024-10-24 11:36:34,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 725 states have (on average 1.2744827586206897) internal successors, (924), 732 states have internal predecessors, (924), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-24 11:36:34,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1132 transitions. [2024-10-24 11:36:34,546 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1132 transitions. Word has length 136 [2024-10-24 11:36:34,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:34,547 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1132 transitions. [2024-10-24 11:36:34,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:34,547 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1132 transitions. [2024-10-24 11:36:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 11:36:34,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:34,549 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:34,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:36:34,549 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:34,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -359293278, now seen corresponding path program 1 times [2024-10-24 11:36:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:34,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430594818] [2024-10-24 11:36:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:36,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:36,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430594818] [2024-10-24 11:36:36,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430594818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:36,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:36,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-24 11:36:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323581064] [2024-10-24 11:36:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:36,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-24 11:36:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-24 11:36:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-10-24 11:36:36,685 INFO L87 Difference]: Start difference. First operand 842 states and 1132 transitions. Second operand has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:36:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:41,205 INFO L93 Difference]: Finished difference Result 1807 states and 2419 transitions. [2024-10-24 11:36:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 11:36:41,206 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 136 [2024-10-24 11:36:41,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:41,212 INFO L225 Difference]: With dead ends: 1807 [2024-10-24 11:36:41,213 INFO L226 Difference]: Without dead ends: 966 [2024-10-24 11:36:41,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=281, Invalid=1525, Unknown=0, NotChecked=0, Total=1806 [2024-10-24 11:36:41,216 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 411 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:41,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 2090 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 11:36:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-10-24 11:36:41,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 851. [2024-10-24 11:36:41,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 734 states have (on average 1.2752043596730245) internal successors, (936), 741 states have internal predecessors, (936), 104 states have call successors, (104), 12 states have call predecessors, (104), 12 states have return successors, (104), 97 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-24 11:36:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1144 transitions. [2024-10-24 11:36:41,282 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1144 transitions. Word has length 136 [2024-10-24 11:36:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:41,282 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1144 transitions. [2024-10-24 11:36:41,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.227272727272727) internal successors, (49), 24 states have internal predecessors, (49), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:36:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1144 transitions. [2024-10-24 11:36:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:36:41,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:41,285 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:41,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:36:41,285 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:41,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1981515887, now seen corresponding path program 1 times [2024-10-24 11:36:41,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:41,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143990048] [2024-10-24 11:36:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:41,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:41,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:41,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143990048] [2024-10-24 11:36:41,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143990048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:36:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614142652] [2024-10-24 11:36:41,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:41,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:36:41,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:36:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:36:41,871 INFO L87 Difference]: Start difference. First operand 851 states and 1144 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:42,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:42,333 INFO L93 Difference]: Finished difference Result 1761 states and 2370 transitions. [2024-10-24 11:36:42,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:36:42,333 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 137 [2024-10-24 11:36:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:42,339 INFO L225 Difference]: With dead ends: 1761 [2024-10-24 11:36:42,339 INFO L226 Difference]: Without dead ends: 1256 [2024-10-24 11:36:42,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:36:42,342 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 175 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:42,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1107 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:36:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-10-24 11:36:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1234. [2024-10-24 11:36:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1075 states have (on average 1.28) internal successors, (1376), 1088 states have internal predecessors, (1376), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-10-24 11:36:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1656 transitions. [2024-10-24 11:36:42,418 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1656 transitions. Word has length 137 [2024-10-24 11:36:42,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:42,419 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1656 transitions. [2024-10-24 11:36:42,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1656 transitions. [2024-10-24 11:36:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:36:42,421 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:42,421 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:42,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:36:42,421 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:42,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:42,422 INFO L85 PathProgramCache]: Analyzing trace with hash 506640274, now seen corresponding path program 1 times [2024-10-24 11:36:42,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:42,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138106872] [2024-10-24 11:36:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:42,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:42,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:42,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:43,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:43,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138106872] [2024-10-24 11:36:43,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138106872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:43,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:43,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 11:36:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484072081] [2024-10-24 11:36:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:43,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 11:36:43,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:43,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 11:36:43,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:36:43,029 INFO L87 Difference]: Start difference. First operand 1234 states and 1656 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:43,714 INFO L93 Difference]: Finished difference Result 2579 states and 3459 transitions. [2024-10-24 11:36:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:36:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 137 [2024-10-24 11:36:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:43,722 INFO L225 Difference]: With dead ends: 2579 [2024-10-24 11:36:43,723 INFO L226 Difference]: Without dead ends: 1346 [2024-10-24 11:36:43,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:36:43,728 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 269 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:43,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1046 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:36:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2024-10-24 11:36:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1215. [2024-10-24 11:36:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1056 states have (on average 1.2755681818181819) internal successors, (1347), 1069 states have internal predecessors, (1347), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-10-24 11:36:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1627 transitions. [2024-10-24 11:36:43,846 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1627 transitions. Word has length 137 [2024-10-24 11:36:43,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:43,847 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1627 transitions. [2024-10-24 11:36:43,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1627 transitions. [2024-10-24 11:36:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 11:36:43,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:43,850 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:43,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:36:43,850 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:43,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:43,851 INFO L85 PathProgramCache]: Analyzing trace with hash 368236730, now seen corresponding path program 1 times [2024-10-24 11:36:43,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850165263] [2024-10-24 11:36:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:44,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:44,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850165263] [2024-10-24 11:36:44,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850165263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:44,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:44,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508138374] [2024-10-24 11:36:44,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:44,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:44,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:44,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:44,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:44,122 INFO L87 Difference]: Start difference. First operand 1215 states and 1627 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:44,290 INFO L93 Difference]: Finished difference Result 2464 states and 3299 transitions. [2024-10-24 11:36:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-24 11:36:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:44,297 INFO L225 Difference]: With dead ends: 2464 [2024-10-24 11:36:44,297 INFO L226 Difference]: Without dead ends: 1250 [2024-10-24 11:36:44,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:44,299 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 35 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:44,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 506 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-10-24 11:36:44,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1215. [2024-10-24 11:36:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1056 states have (on average 1.2651515151515151) internal successors, (1336), 1069 states have internal predecessors, (1336), 140 states have call successors, (140), 18 states have call predecessors, (140), 18 states have return successors, (140), 127 states have call predecessors, (140), 140 states have call successors, (140) [2024-10-24 11:36:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1616 transitions. [2024-10-24 11:36:44,381 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1616 transitions. Word has length 138 [2024-10-24 11:36:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:44,383 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1616 transitions. [2024-10-24 11:36:44,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1616 transitions. [2024-10-24 11:36:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 11:36:44,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:44,386 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:44,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:36:44,386 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:44,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1513506001, now seen corresponding path program 1 times [2024-10-24 11:36:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:44,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083557628] [2024-10-24 11:36:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:44,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:44,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083557628] [2024-10-24 11:36:44,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083557628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:44,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:44,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:44,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068691333] [2024-10-24 11:36:44,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:44,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:44,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:44,622 INFO L87 Difference]: Start difference. First operand 1215 states and 1616 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:44,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:44,830 INFO L93 Difference]: Finished difference Result 2814 states and 3732 transitions. [2024-10-24 11:36:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:44,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2024-10-24 11:36:44,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:44,838 INFO L225 Difference]: With dead ends: 2814 [2024-10-24 11:36:44,839 INFO L226 Difference]: Without dead ends: 1600 [2024-10-24 11:36:44,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:44,843 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 75 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:44,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 579 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-10-24 11:36:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1594. [2024-10-24 11:36:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1369 states have (on average 1.2490869247626004) internal successors, (1710), 1389 states have internal predecessors, (1710), 196 states have call successors, (196), 28 states have call predecessors, (196), 28 states have return successors, (196), 176 states have call predecessors, (196), 196 states have call successors, (196) [2024-10-24 11:36:44,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2102 transitions. [2024-10-24 11:36:44,951 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2102 transitions. Word has length 138 [2024-10-24 11:36:44,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:44,952 INFO L471 AbstractCegarLoop]: Abstraction has 1594 states and 2102 transitions. [2024-10-24 11:36:44,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2102 transitions. [2024-10-24 11:36:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:36:44,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:44,954 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:44,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:36:44,955 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:44,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash -546772243, now seen corresponding path program 1 times [2024-10-24 11:36:44,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:44,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352692880] [2024-10-24 11:36:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:44,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:45,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:45,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352692880] [2024-10-24 11:36:45,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352692880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:45,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:45,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:36:45,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233951440] [2024-10-24 11:36:45,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:45,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:36:45,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:45,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:36:45,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:36:45,134 INFO L87 Difference]: Start difference. First operand 1594 states and 2102 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:45,257 INFO L93 Difference]: Finished difference Result 3305 states and 4341 transitions. [2024-10-24 11:36:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:36:45,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-24 11:36:45,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:45,266 INFO L225 Difference]: With dead ends: 3305 [2024-10-24 11:36:45,267 INFO L226 Difference]: Without dead ends: 1712 [2024-10-24 11:36:45,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:36:45,271 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:45,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 698 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:36:45,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-10-24 11:36:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1628. [2024-10-24 11:36:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1403 states have (on average 1.2430506058446187) internal successors, (1744), 1423 states have internal predecessors, (1744), 196 states have call successors, (196), 28 states have call predecessors, (196), 28 states have return successors, (196), 176 states have call predecessors, (196), 196 states have call successors, (196) [2024-10-24 11:36:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2136 transitions. [2024-10-24 11:36:45,403 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2136 transitions. Word has length 139 [2024-10-24 11:36:45,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:45,403 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2136 transitions. [2024-10-24 11:36:45,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2136 transitions. [2024-10-24 11:36:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 11:36:45,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:45,405 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:45,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:36:45,406 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:45,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1226830613, now seen corresponding path program 1 times [2024-10-24 11:36:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095524145] [2024-10-24 11:36:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:45,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:45,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095524145] [2024-10-24 11:36:45,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095524145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:45,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:45,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:45,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446309112] [2024-10-24 11:36:45,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:45,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:45,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:45,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:45,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:45,571 INFO L87 Difference]: Start difference. First operand 1628 states and 2136 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:45,747 INFO L93 Difference]: Finished difference Result 2712 states and 3569 transitions. [2024-10-24 11:36:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:45,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-10-24 11:36:45,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:45,755 INFO L225 Difference]: With dead ends: 2712 [2024-10-24 11:36:45,756 INFO L226 Difference]: Without dead ends: 1618 [2024-10-24 11:36:45,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:45,759 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 71 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 664 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 [2024-10-24 11:36:45,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 664 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-10-24 11:36:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1614. [2024-10-24 11:36:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1383 states have (on average 1.237888647866956) internal successors, (1712), 1403 states have internal predecessors, (1712), 200 states have call successors, (200), 30 states have call predecessors, (200), 30 states have return successors, (200), 180 states have call predecessors, (200), 200 states have call successors, (200) [2024-10-24 11:36:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2112 transitions. [2024-10-24 11:36:45,870 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2112 transitions. Word has length 139 [2024-10-24 11:36:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:45,871 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2112 transitions. [2024-10-24 11:36:45,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2112 transitions. [2024-10-24 11:36:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:36:45,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:45,873 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:45,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:36:45,873 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:45,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash -343509217, now seen corresponding path program 1 times [2024-10-24 11:36:45,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402905674] [2024-10-24 11:36:45,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402905674] [2024-10-24 11:36:46,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402905674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:46,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:46,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 11:36:46,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347658376] [2024-10-24 11:36:46,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:46,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:36:46,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:36:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:36:46,729 INFO L87 Difference]: Start difference. First operand 1614 states and 2112 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:47,700 INFO L93 Difference]: Finished difference Result 3280 states and 4267 transitions. [2024-10-24 11:36:47,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:36:47,701 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2024-10-24 11:36:47,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:47,709 INFO L225 Difference]: With dead ends: 3280 [2024-10-24 11:36:47,709 INFO L226 Difference]: Without dead ends: 1667 [2024-10-24 11:36:47,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-10-24 11:36:47,714 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 547 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:47,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 947 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:36:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-10-24 11:36:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1646. [2024-10-24 11:36:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1407 states have (on average 1.232409381663113) internal successors, (1734), 1427 states have internal predecessors, (1734), 200 states have call successors, (200), 38 states have call predecessors, (200), 38 states have return successors, (200), 180 states have call predecessors, (200), 200 states have call successors, (200) [2024-10-24 11:36:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2134 transitions. [2024-10-24 11:36:47,832 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2134 transitions. Word has length 140 [2024-10-24 11:36:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:47,833 INFO L471 AbstractCegarLoop]: Abstraction has 1646 states and 2134 transitions. [2024-10-24 11:36:47,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2134 transitions. [2024-10-24 11:36:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:36:47,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:47,835 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:47,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:36:47,836 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:47,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1175221717, now seen corresponding path program 1 times [2024-10-24 11:36:47,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:47,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064531841] [2024-10-24 11:36:47,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:47,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:48,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:48,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064531841] [2024-10-24 11:36:48,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064531841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:48,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:36:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014376521] [2024-10-24 11:36:48,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:48,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:36:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:48,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:36:48,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:36:48,398 INFO L87 Difference]: Start difference. First operand 1646 states and 2134 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:36:48,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:48,850 INFO L93 Difference]: Finished difference Result 3143 states and 4079 transitions. [2024-10-24 11:36:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 11:36:48,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-10-24 11:36:48,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:48,861 INFO L225 Difference]: With dead ends: 3143 [2024-10-24 11:36:48,861 INFO L226 Difference]: Without dead ends: 2043 [2024-10-24 11:36:48,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:36:48,865 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 171 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:48,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1155 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:36:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2024-10-24 11:36:48,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 1802. [2024-10-24 11:36:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1563 states have (on average 1.2418426103646834) internal successors, (1941), 1583 states have internal predecessors, (1941), 200 states have call successors, (200), 38 states have call predecessors, (200), 38 states have return successors, (200), 180 states have call predecessors, (200), 200 states have call successors, (200) [2024-10-24 11:36:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2341 transitions. [2024-10-24 11:36:48,985 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2341 transitions. Word has length 140 [2024-10-24 11:36:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:48,985 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2341 transitions. [2024-10-24 11:36:48,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:36:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2341 transitions. [2024-10-24 11:36:48,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:36:48,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:48,988 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:48,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 11:36:48,988 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:48,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:48,989 INFO L85 PathProgramCache]: Analyzing trace with hash -956366999, now seen corresponding path program 1 times [2024-10-24 11:36:48,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:48,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19637554] [2024-10-24 11:36:48,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:48,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:49,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:49,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19637554] [2024-10-24 11:36:49,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19637554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:49,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:49,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:49,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824414799] [2024-10-24 11:36:49,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:49,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:49,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:49,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:49,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:49,163 INFO L87 Difference]: Start difference. First operand 1802 states and 2341 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:49,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:49,387 INFO L93 Difference]: Finished difference Result 3738 states and 4851 transitions. [2024-10-24 11:36:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:49,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:36:49,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:49,396 INFO L225 Difference]: With dead ends: 3738 [2024-10-24 11:36:49,396 INFO L226 Difference]: Without dead ends: 1937 [2024-10-24 11:36:49,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:49,400 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 78 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:49,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 584 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:49,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-10-24 11:36:49,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1931. [2024-10-24 11:36:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1650 states have (on average 1.2315151515151515) internal successors, (2032), 1673 states have internal predecessors, (2032), 232 states have call successors, (232), 48 states have call predecessors, (232), 48 states have return successors, (232), 209 states have call predecessors, (232), 232 states have call successors, (232) [2024-10-24 11:36:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2496 transitions. [2024-10-24 11:36:49,538 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2496 transitions. Word has length 140 [2024-10-24 11:36:49,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:49,539 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2496 transitions. [2024-10-24 11:36:49,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:49,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2496 transitions. [2024-10-24 11:36:49,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:36:49,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:49,541 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:49,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 11:36:49,541 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:49,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1844549273, now seen corresponding path program 1 times [2024-10-24 11:36:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:49,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681863587] [2024-10-24 11:36:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:49,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:50,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:50,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681863587] [2024-10-24 11:36:50,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681863587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:50,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:50,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:36:50,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219551615] [2024-10-24 11:36:50,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:50,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:36:50,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:50,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:36:50,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:36:50,114 INFO L87 Difference]: Start difference. First operand 1931 states and 2496 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:50,633 INFO L93 Difference]: Finished difference Result 3864 states and 4984 transitions. [2024-10-24 11:36:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:36:50,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 140 [2024-10-24 11:36:50,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:50,644 INFO L225 Difference]: With dead ends: 3864 [2024-10-24 11:36:50,644 INFO L226 Difference]: Without dead ends: 1934 [2024-10-24 11:36:50,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:36:50,649 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 192 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:50,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 492 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:36:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-10-24 11:36:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1381. [2024-10-24 11:36:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1200 states have (on average 1.2266666666666666) internal successors, (1472), 1216 states have internal predecessors, (1472), 144 states have call successors, (144), 36 states have call predecessors, (144), 36 states have return successors, (144), 128 states have call predecessors, (144), 144 states have call successors, (144) [2024-10-24 11:36:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1760 transitions. [2024-10-24 11:36:50,759 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1760 transitions. Word has length 140 [2024-10-24 11:36:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:50,759 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1760 transitions. [2024-10-24 11:36:50,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1760 transitions. [2024-10-24 11:36:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:36:50,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:50,762 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:50,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 11:36:50,762 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:50,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash 332612745, now seen corresponding path program 1 times [2024-10-24 11:36:50,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:50,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594622233] [2024-10-24 11:36:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:51,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:51,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594622233] [2024-10-24 11:36:51,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594622233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:51,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:51,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:36:51,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797015166] [2024-10-24 11:36:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:51,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:36:51,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:36:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:36:51,369 INFO L87 Difference]: Start difference. First operand 1381 states and 1760 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:51,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:51,917 INFO L93 Difference]: Finished difference Result 2804 states and 3560 transitions. [2024-10-24 11:36:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:36:51,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 141 [2024-10-24 11:36:51,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:51,925 INFO L225 Difference]: With dead ends: 2804 [2024-10-24 11:36:51,925 INFO L226 Difference]: Without dead ends: 1424 [2024-10-24 11:36:51,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:36:51,928 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 248 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:51,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 624 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:36:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2024-10-24 11:36:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1221. [2024-10-24 11:36:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1083 states have (on average 1.214219759926131) internal successors, (1315), 1093 states have internal predecessors, (1315), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-24 11:36:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1531 transitions. [2024-10-24 11:36:52,036 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1531 transitions. Word has length 141 [2024-10-24 11:36:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:52,037 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1531 transitions. [2024-10-24 11:36:52,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:36:52,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1531 transitions. [2024-10-24 11:36:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:36:52,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:52,040 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:52,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:36:52,040 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:52,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1790187183, now seen corresponding path program 1 times [2024-10-24 11:36:52,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:52,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506547763] [2024-10-24 11:36:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:52,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:53,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:54,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:54,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506547763] [2024-10-24 11:36:54,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506547763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:54,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:54,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2024-10-24 11:36:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154183747] [2024-10-24 11:36:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:54,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 11:36:54,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 11:36:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-10-24 11:36:54,017 INFO L87 Difference]: Start difference. First operand 1221 states and 1531 transitions. Second operand has 28 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 28 states have internal predecessors, (55), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:36:56,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:56,834 INFO L93 Difference]: Finished difference Result 1367 states and 1695 transitions. [2024-10-24 11:36:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-24 11:36:56,835 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 28 states have internal predecessors, (55), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 142 [2024-10-24 11:36:56,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:56,841 INFO L225 Difference]: With dead ends: 1367 [2024-10-24 11:36:56,841 INFO L226 Difference]: Without dead ends: 1365 [2024-10-24 11:36:56,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1095 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=683, Invalid=4287, Unknown=0, NotChecked=0, Total=4970 [2024-10-24 11:36:56,843 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 837 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:56,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1451 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 11:36:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-10-24 11:36:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1260. [2024-10-24 11:36:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1122 states have (on average 1.2085561497326203) internal successors, (1356), 1132 states have internal predecessors, (1356), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (108), 98 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-24 11:36:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1572 transitions. [2024-10-24 11:36:56,956 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1572 transitions. Word has length 142 [2024-10-24 11:36:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:56,957 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1572 transitions. [2024-10-24 11:36:56,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 2.1153846153846154) internal successors, (55), 28 states have internal predecessors, (55), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:36:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1572 transitions. [2024-10-24 11:36:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:36:56,959 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:56,959 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:56,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 11:36:56,959 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:56,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:56,960 INFO L85 PathProgramCache]: Analyzing trace with hash 665464840, now seen corresponding path program 1 times [2024-10-24 11:36:56,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:56,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752676434] [2024-10-24 11:36:56,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:56,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:57,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752676434] [2024-10-24 11:36:57,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752676434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:57,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:57,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 11:36:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090727910] [2024-10-24 11:36:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:57,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 11:36:57,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:57,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 11:36:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:36:57,757 INFO L87 Difference]: Start difference. First operand 1260 states and 1572 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:58,495 INFO L93 Difference]: Finished difference Result 3126 states and 3897 transitions. [2024-10-24 11:36:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:36:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2024-10-24 11:36:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:58,510 INFO L225 Difference]: With dead ends: 3126 [2024-10-24 11:36:58,510 INFO L226 Difference]: Without dead ends: 1867 [2024-10-24 11:36:58,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2024-10-24 11:36:58,516 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 629 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:58,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 852 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:36:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2024-10-24 11:36:58,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1805. [2024-10-24 11:36:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1572 states have (on average 1.200381679389313) internal successors, (1887), 1586 states have internal predecessors, (1887), 184 states have call successors, (184), 48 states have call predecessors, (184), 48 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184) [2024-10-24 11:36:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2255 transitions. [2024-10-24 11:36:58,671 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2255 transitions. Word has length 142 [2024-10-24 11:36:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:58,671 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2255 transitions. [2024-10-24 11:36:58,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:36:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2255 transitions. [2024-10-24 11:36:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:36:58,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:58,673 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:58,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 11:36:58,674 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:58,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1571332465, now seen corresponding path program 1 times [2024-10-24 11:36:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459069318] [2024-10-24 11:36:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:58,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:58,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459069318] [2024-10-24 11:36:58,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459069318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:58,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:58,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:36:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858801864] [2024-10-24 11:36:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:58,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:36:58,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:58,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:36:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:36:58,843 INFO L87 Difference]: Start difference. First operand 1805 states and 2255 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:36:59,127 INFO L93 Difference]: Finished difference Result 4587 states and 5690 transitions. [2024-10-24 11:36:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:36:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 11:36:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:36:59,138 INFO L225 Difference]: With dead ends: 4587 [2024-10-24 11:36:59,138 INFO L226 Difference]: Without dead ends: 2815 [2024-10-24 11:36:59,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:36:59,142 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 60 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:36:59,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 551 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:36:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2024-10-24 11:36:59,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2271. [2024-10-24 11:36:59,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2011 states have (on average 1.1904525111884634) internal successors, (2394), 2027 states have internal predecessors, (2394), 204 states have call successors, (204), 55 states have call predecessors, (204), 55 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:36:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 2802 transitions. [2024-10-24 11:36:59,299 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 2802 transitions. Word has length 142 [2024-10-24 11:36:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:36:59,300 INFO L471 AbstractCegarLoop]: Abstraction has 2271 states and 2802 transitions. [2024-10-24 11:36:59,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:36:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 2802 transitions. [2024-10-24 11:36:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:36:59,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:36:59,302 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:36:59,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 11:36:59,302 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:36:59,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:36:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1141824685, now seen corresponding path program 1 times [2024-10-24 11:36:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:36:59,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074699833] [2024-10-24 11:36:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:36:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:36:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:36:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:36:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:36:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:36:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:36:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:36:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:36:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:36:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:36:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:36:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:36:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:36:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:36:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:36:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:36:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:36:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:36:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:36:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:36:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:36:59,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:36:59,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074699833] [2024-10-24 11:36:59,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074699833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:36:59,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:36:59,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 11:36:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710978384] [2024-10-24 11:36:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:36:59,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 11:36:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:36:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 11:36:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:36:59,995 INFO L87 Difference]: Start difference. First operand 2271 states and 2802 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:37:00,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:00,768 INFO L93 Difference]: Finished difference Result 4771 states and 5879 transitions. [2024-10-24 11:37:00,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:37:00,768 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-10-24 11:37:00,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:00,776 INFO L225 Difference]: With dead ends: 4771 [2024-10-24 11:37:00,776 INFO L226 Difference]: Without dead ends: 2533 [2024-10-24 11:37:00,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-10-24 11:37:00,780 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 324 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:00,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 892 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 11:37:00,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2024-10-24 11:37:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2441. [2024-10-24 11:37:00,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2181 states have (on average 1.1861531407611188) internal successors, (2587), 2197 states have internal predecessors, (2587), 204 states have call successors, (204), 55 states have call predecessors, (204), 55 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 2995 transitions. [2024-10-24 11:37:00,961 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 2995 transitions. Word has length 143 [2024-10-24 11:37:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:00,961 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 2995 transitions. [2024-10-24 11:37:00,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:37:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 2995 transitions. [2024-10-24 11:37:00,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:37:00,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:00,963 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:00,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 11:37:00,964 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:00,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1313827338, now seen corresponding path program 1 times [2024-10-24 11:37:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652410281] [2024-10-24 11:37:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:37:02,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:02,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652410281] [2024-10-24 11:37:02,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652410281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:37:02,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359305762] [2024-10-24 11:37:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:02,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:37:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:37:02,954 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) [2024-10-24 11:37:02,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:37:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:03,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 11:37:03,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:37:03,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 11:37:03,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-24 11:37:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 3 proven. 233 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-10-24 11:37:03,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:37:04,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2024-10-24 11:37:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:37:04,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359305762] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 11:37:04,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 11:37:04,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 32 [2024-10-24 11:37:04,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214773469] [2024-10-24 11:37:04,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 11:37:04,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-24 11:37:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-24 11:37:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=867, Unknown=0, NotChecked=0, Total=992 [2024-10-24 11:37:04,274 INFO L87 Difference]: Start difference. First operand 2441 states and 2995 transitions. Second operand has 32 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 13 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (54), 9 states have call predecessors, (54), 13 states have call successors, (54) [2024-10-24 11:37:06,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:06,403 INFO L93 Difference]: Finished difference Result 4989 states and 6088 transitions. [2024-10-24 11:37:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 11:37:06,404 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 13 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (54), 9 states have call predecessors, (54), 13 states have call successors, (54) Word has length 143 [2024-10-24 11:37:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:06,412 INFO L225 Difference]: With dead ends: 4989 [2024-10-24 11:37:06,413 INFO L226 Difference]: Without dead ends: 2581 [2024-10-24 11:37:06,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2364, Unknown=0, NotChecked=0, Total=2862 [2024-10-24 11:37:06,419 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 1071 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:06,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 818 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 11:37:06,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2024-10-24 11:37:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2457. [2024-10-24 11:37:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2193 states have (on average 1.1741906064751482) internal successors, (2575), 2209 states have internal predecessors, (2575), 204 states have call successors, (204), 59 states have call predecessors, (204), 59 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 2983 transitions. [2024-10-24 11:37:06,639 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 2983 transitions. Word has length 143 [2024-10-24 11:37:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:06,640 INFO L471 AbstractCegarLoop]: Abstraction has 2457 states and 2983 transitions. [2024-10-24 11:37:06,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 31 states have internal predecessors, (115), 13 states have call successors, (54), 3 states have call predecessors, (54), 5 states have return successors, (54), 9 states have call predecessors, (54), 13 states have call successors, (54) [2024-10-24 11:37:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 2983 transitions. [2024-10-24 11:37:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:37:06,645 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:06,645 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:06,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 11:37:06,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-24 11:37:06,846 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:06,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:06,846 INFO L85 PathProgramCache]: Analyzing trace with hash -491610996, now seen corresponding path program 1 times [2024-10-24 11:37:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:06,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333100417] [2024-10-24 11:37:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:06,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:08,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:08,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333100417] [2024-10-24 11:37:08,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333100417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:08,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:08,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 11:37:08,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481774856] [2024-10-24 11:37:08,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:08,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:37:08,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:08,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:37:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:37:08,249 INFO L87 Difference]: Start difference. First operand 2457 states and 2983 transitions. Second operand has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:37:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:09,495 INFO L93 Difference]: Finished difference Result 4905 states and 5952 transitions. [2024-10-24 11:37:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 11:37:09,496 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) Word has length 143 [2024-10-24 11:37:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:09,504 INFO L225 Difference]: With dead ends: 4905 [2024-10-24 11:37:09,504 INFO L226 Difference]: Without dead ends: 2481 [2024-10-24 11:37:09,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=180, Invalid=876, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 11:37:09,509 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 541 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:09,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 948 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:37:09,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2024-10-24 11:37:09,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2457. [2024-10-24 11:37:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2193 states have (on average 1.1732786137710898) internal successors, (2573), 2209 states have internal predecessors, (2573), 204 states have call successors, (204), 59 states have call predecessors, (204), 59 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 2981 transitions. [2024-10-24 11:37:09,715 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 2981 transitions. Word has length 143 [2024-10-24 11:37:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:09,716 INFO L471 AbstractCegarLoop]: Abstraction has 2457 states and 2981 transitions. [2024-10-24 11:37:09,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 19 states have internal predecessors, (56), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-24 11:37:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 2981 transitions. [2024-10-24 11:37:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:37:09,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:09,718 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:09,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 11:37:09,718 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:09,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1283396366, now seen corresponding path program 1 times [2024-10-24 11:37:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430540088] [2024-10-24 11:37:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:09,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:10,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:10,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430540088] [2024-10-24 11:37:10,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430540088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:10,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:10,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:37:10,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726382309] [2024-10-24 11:37:10,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:10,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:37:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:10,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:37:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:37:10,049 INFO L87 Difference]: Start difference. First operand 2457 states and 2981 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:10,445 INFO L93 Difference]: Finished difference Result 4093 states and 4996 transitions. [2024-10-24 11:37:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:37:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 11:37:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:10,455 INFO L225 Difference]: With dead ends: 4093 [2024-10-24 11:37:10,455 INFO L226 Difference]: Without dead ends: 4091 [2024-10-24 11:37:10,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:37:10,457 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 115 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:10,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1920 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:37:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4091 states. [2024-10-24 11:37:10,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4091 to 3985. [2024-10-24 11:37:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3985 states, 3470 states have (on average 1.1737752161383286) internal successors, (4073), 3501 states have internal predecessors, (4073), 400 states have call successors, (400), 114 states have call predecessors, (400), 114 states have return successors, (400), 369 states have call predecessors, (400), 400 states have call successors, (400) [2024-10-24 11:37:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3985 states to 3985 states and 4873 transitions. [2024-10-24 11:37:10,863 INFO L78 Accepts]: Start accepts. Automaton has 3985 states and 4873 transitions. Word has length 143 [2024-10-24 11:37:10,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:10,863 INFO L471 AbstractCegarLoop]: Abstraction has 3985 states and 4873 transitions. [2024-10-24 11:37:10,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3985 states and 4873 transitions. [2024-10-24 11:37:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:37:10,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:10,865 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:10,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 11:37:10,866 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:10,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash 702019652, now seen corresponding path program 1 times [2024-10-24 11:37:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:10,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472415519] [2024-10-24 11:37:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:10,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:11,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:11,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472415519] [2024-10-24 11:37:11,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472415519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:11,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:11,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:37:11,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683322236] [2024-10-24 11:37:11,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:11,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:37:11,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:37:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:37:11,136 INFO L87 Difference]: Start difference. First operand 3985 states and 4873 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:11,611 INFO L93 Difference]: Finished difference Result 8040 states and 9821 transitions. [2024-10-24 11:37:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:37:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 11:37:11,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:11,624 INFO L225 Difference]: With dead ends: 8040 [2024-10-24 11:37:11,625 INFO L226 Difference]: Without dead ends: 4088 [2024-10-24 11:37:11,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:37:11,633 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 19 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:11,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 410 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:37:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4088 states. [2024-10-24 11:37:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4088 to 3982. [2024-10-24 11:37:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3467 states have (on average 1.1693106432073839) internal successors, (4054), 3498 states have internal predecessors, (4054), 400 states have call successors, (400), 114 states have call predecessors, (400), 114 states have return successors, (400), 369 states have call predecessors, (400), 400 states have call successors, (400) [2024-10-24 11:37:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 4854 transitions. [2024-10-24 11:37:12,026 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 4854 transitions. Word has length 143 [2024-10-24 11:37:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:12,026 INFO L471 AbstractCegarLoop]: Abstraction has 3982 states and 4854 transitions. [2024-10-24 11:37:12,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 4854 transitions. [2024-10-24 11:37:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 11:37:12,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:12,029 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:12,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 11:37:12,029 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:12,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:12,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1599171722, now seen corresponding path program 1 times [2024-10-24 11:37:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:12,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675071131] [2024-10-24 11:37:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:12,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:13,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:13,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675071131] [2024-10-24 11:37:13,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675071131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:13,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:13,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-24 11:37:13,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195259830] [2024-10-24 11:37:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:13,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 11:37:13,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:13,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 11:37:13,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-10-24 11:37:13,190 INFO L87 Difference]: Start difference. First operand 3982 states and 4854 transitions. Second operand has 22 states, 21 states have (on average 2.761904761904762) internal successors, (58), 22 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:15,134 INFO L93 Difference]: Finished difference Result 4350 states and 5260 transitions. [2024-10-24 11:37:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 11:37:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.761904761904762) internal successors, (58), 22 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 145 [2024-10-24 11:37:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:15,145 INFO L225 Difference]: With dead ends: 4350 [2024-10-24 11:37:15,146 INFO L226 Difference]: Without dead ends: 4348 [2024-10-24 11:37:15,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=384, Invalid=2478, Unknown=0, NotChecked=0, Total=2862 [2024-10-24 11:37:15,148 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 575 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:15,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1620 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 11:37:15,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2024-10-24 11:37:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 3975. [2024-10-24 11:37:15,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 3460 states have (on average 1.1696531791907514) internal successors, (4047), 3491 states have internal predecessors, (4047), 400 states have call successors, (400), 114 states have call predecessors, (400), 114 states have return successors, (400), 369 states have call predecessors, (400), 400 states have call successors, (400) [2024-10-24 11:37:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 4847 transitions. [2024-10-24 11:37:15,549 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 4847 transitions. Word has length 145 [2024-10-24 11:37:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:15,550 INFO L471 AbstractCegarLoop]: Abstraction has 3975 states and 4847 transitions. [2024-10-24 11:37:15,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.761904761904762) internal successors, (58), 22 states have internal predecessors, (58), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:15,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 4847 transitions. [2024-10-24 11:37:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 11:37:15,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:15,552 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:15,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 11:37:15,553 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:15,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:15,553 INFO L85 PathProgramCache]: Analyzing trace with hash 856480301, now seen corresponding path program 1 times [2024-10-24 11:37:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:15,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052798422] [2024-10-24 11:37:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:15,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:15,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:15,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052798422] [2024-10-24 11:37:15,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052798422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:15,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:15,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:37:15,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400926962] [2024-10-24 11:37:15,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:15,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:37:15,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:37:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:37:15,939 INFO L87 Difference]: Start difference. First operand 3975 states and 4847 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:16,450 INFO L93 Difference]: Finished difference Result 8062 states and 9804 transitions. [2024-10-24 11:37:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:37:16,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-10-24 11:37:16,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:16,464 INFO L225 Difference]: With dead ends: 8062 [2024-10-24 11:37:16,464 INFO L226 Difference]: Without dead ends: 4120 [2024-10-24 11:37:16,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:37:16,473 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 26 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:16,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 728 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:37:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2024-10-24 11:37:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 2601. [2024-10-24 11:37:16,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2337 states have (on average 1.1548994437312794) internal successors, (2699), 2353 states have internal predecessors, (2699), 204 states have call successors, (204), 59 states have call predecessors, (204), 59 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3107 transitions. [2024-10-24 11:37:16,685 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3107 transitions. Word has length 145 [2024-10-24 11:37:16,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:16,685 INFO L471 AbstractCegarLoop]: Abstraction has 2601 states and 3107 transitions. [2024-10-24 11:37:16,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:37:16,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3107 transitions. [2024-10-24 11:37:16,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:37:16,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:16,688 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:16,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 11:37:16,688 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:16,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1975176675, now seen corresponding path program 1 times [2024-10-24 11:37:16,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:16,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739482154] [2024-10-24 11:37:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:17,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:17,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739482154] [2024-10-24 11:37:17,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739482154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:17,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:17,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 11:37:17,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806655630] [2024-10-24 11:37:17,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:17,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 11:37:17,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:17,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 11:37:17,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:37:17,432 INFO L87 Difference]: Start difference. First operand 2601 states and 3107 transitions. Second operand has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:18,639 INFO L93 Difference]: Finished difference Result 4562 states and 5482 transitions. [2024-10-24 11:37:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 11:37:18,640 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-10-24 11:37:18,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:18,649 INFO L225 Difference]: With dead ends: 4562 [2024-10-24 11:37:18,649 INFO L226 Difference]: Without dead ends: 2708 [2024-10-24 11:37:18,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=874, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 11:37:18,654 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 502 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:18,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1560 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:37:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2024-10-24 11:37:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2596. [2024-10-24 11:37:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2332 states have (on average 1.1539451114922814) internal successors, (2691), 2348 states have internal predecessors, (2691), 204 states have call successors, (204), 59 states have call predecessors, (204), 59 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 3099 transitions. [2024-10-24 11:37:18,882 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 3099 transitions. Word has length 146 [2024-10-24 11:37:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:18,883 INFO L471 AbstractCegarLoop]: Abstraction has 2596 states and 3099 transitions. [2024-10-24 11:37:18,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 3099 transitions. [2024-10-24 11:37:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:37:18,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:18,885 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:18,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 11:37:18,885 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:18,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:18,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2111384323, now seen corresponding path program 1 times [2024-10-24 11:37:18,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:18,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987396502] [2024-10-24 11:37:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:37:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:37:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:37:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:37:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:37:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:37:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:37:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:37:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 11:37:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:37:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:37:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:37:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:37:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:37:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:37:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:37:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:37:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:37:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:37:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:37:19,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:37:19,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987396502] [2024-10-24 11:37:19,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987396502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:37:19,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:37:19,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 11:37:19,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563165068] [2024-10-24 11:37:19,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:37:19,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 11:37:19,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:37:19,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 11:37:19,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-24 11:37:19,874 INFO L87 Difference]: Start difference. First operand 2596 states and 3099 transitions. Second operand has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:21,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:37:21,049 INFO L93 Difference]: Finished difference Result 2705 states and 3209 transitions. [2024-10-24 11:37:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 11:37:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-10-24 11:37:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:37:21,057 INFO L225 Difference]: With dead ends: 2705 [2024-10-24 11:37:21,057 INFO L226 Difference]: Without dead ends: 2703 [2024-10-24 11:37:21,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=328, Invalid=1834, Unknown=0, NotChecked=0, Total=2162 [2024-10-24 11:37:21,060 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 314 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:37:21,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1771 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:37:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2024-10-24 11:37:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2598. [2024-10-24 11:37:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2334 states have (on average 1.1546700942587833) internal successors, (2695), 2350 states have internal predecessors, (2695), 204 states have call successors, (204), 59 states have call predecessors, (204), 59 states have return successors, (204), 188 states have call predecessors, (204), 204 states have call successors, (204) [2024-10-24 11:37:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3103 transitions. [2024-10-24 11:37:21,333 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3103 transitions. Word has length 146 [2024-10-24 11:37:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:37:21,334 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 3103 transitions. [2024-10-24 11:37:21,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:37:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3103 transitions. [2024-10-24 11:37:21,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 11:37:21,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:37:21,336 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:37:21,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 11:37:21,337 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:37:21,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:37:21,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1598000651, now seen corresponding path program 1 times [2024-10-24 11:37:21,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:37:21,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728925740] [2024-10-24 11:37:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:37:21,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:37:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat