/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:29:26,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:29:26,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:29:26,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:29:26,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:29:26,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:29:26,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:29:26,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:29:26,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:29:26,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:29:26,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:29:26,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:29:26,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:29:26,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:29:26,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:29:26,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:29:26,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:29:26,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:29:26,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:29:26,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:29:26,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:29:26,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:29:26,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:29:26,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:29:26,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:29:26,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:29:26,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:29:26,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:29:26,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:29:26,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:29:26,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:29:26,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:29:26,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:29:26,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:29:26,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:29:26,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:29:26,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:29:26,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:29:26,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:29:26,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:29:26,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:29:26,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:29:26,286 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:29:26,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:29:26,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:29:26,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:29:26,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:29:26,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:29:26,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:29:26,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:29:26,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:29:26,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:29:26,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:29:26,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:29:26,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:29:26,290 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:29:26,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:29:26,291 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:29:26,291 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:29:26,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:29:26,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:29:26,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:29:26,526 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:29:26,528 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:29:26,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2023-04-02 04:29:27,725 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:29:27,941 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:29:27,942 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2023-04-02 04:29:27,952 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31bddbaad/f87fc9a5cd7e4251850c1cf32725ecbc/FLAG7c593ea12 [2023-04-02 04:29:27,964 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31bddbaad/f87fc9a5cd7e4251850c1cf32725ecbc [2023-04-02 04:29:27,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:29:27,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:29:27,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:29:27,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:29:27,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:29:27,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:29:27" (1/1) ... [2023-04-02 04:29:27,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb1e168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:27, skipping insertion in model container [2023-04-02 04:29:27,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:29:27" (1/1) ... [2023-04-02 04:29:27,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:29:28,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:29:28,219 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2023-04-02 04:29:28,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:29:28,241 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:29:28,302 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2023-04-02 04:29:28,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:29:28,337 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:29:28,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28 WrapperNode [2023-04-02 04:29:28,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:29:28,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:29:28,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:29:28,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:29:28,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:29:28,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:29:28,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:29:28,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:29:28,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (1/1) ... [2023-04-02 04:29:28,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:29:28,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:28,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:29:28,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:29:28,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:29:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:29:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:29:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:29:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:29:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:29:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:29:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:29:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:29:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:29:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:29:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:29:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:29:28,671 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:29:28,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:29:29,270 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:29:29,279 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:29:29,279 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:29:29,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:29:29 BoogieIcfgContainer [2023-04-02 04:29:29,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:29:29,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:29:29,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:29:29,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:29:29,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:29:27" (1/3) ... [2023-04-02 04:29:29,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3abf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:29:29, skipping insertion in model container [2023-04-02 04:29:29,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:29:28" (2/3) ... [2023-04-02 04:29:29,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3abf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:29:29, skipping insertion in model container [2023-04-02 04:29:29,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:29:29" (3/3) ... [2023-04-02 04:29:29,290 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2023-04-02 04:29:29,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:29:29,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:29:29,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:29:29,374 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5387a753, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:29:29,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:29:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 110 states have (on average 1.290909090909091) internal successors, (142), 124 states have internal predecessors, (142), 53 states have call successors, (53), 33 states have call predecessors, (53), 33 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2023-04-02 04:29:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-02 04:29:29,392 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:29,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:29,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:29,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash -755004476, now seen corresponding path program 1 times [2023-04-02 04:29:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300235538] [2023-04-02 04:29:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:29,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:29:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:29:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:29,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300235538] [2023-04-02 04:29:29,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300235538] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:29,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:29,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:29:29,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104556118] [2023-04-02 04:29:29,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:29,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:29:29,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:29,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:29:29,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:29:29,848 INFO L87 Difference]: Start difference. First operand has 199 states, 110 states have (on average 1.290909090909091) internal successors, (142), 124 states have internal predecessors, (142), 53 states have call successors, (53), 33 states have call predecessors, (53), 33 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:30,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:30,409 INFO L93 Difference]: Finished difference Result 341 states and 436 transitions. [2023-04-02 04:29:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:29:30,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2023-04-02 04:29:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:30,426 INFO L225 Difference]: With dead ends: 341 [2023-04-02 04:29:30,426 INFO L226 Difference]: Without dead ends: 186 [2023-04-02 04:29:30,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:29:30,437 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 208 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:30,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 77 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:29:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-04-02 04:29:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 156. [2023-04-02 04:29:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 102 states have internal predecessors, (113), 38 states have call successors, (38), 31 states have call predecessors, (38), 26 states have return successors, (33), 27 states have call predecessors, (33), 33 states have call successors, (33) [2023-04-02 04:29:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2023-04-02 04:29:30,528 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 59 [2023-04-02 04:29:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:30,530 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2023-04-02 04:29:30,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2023-04-02 04:29:30,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 04:29:30,540 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:30,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:30,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:29:30,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:30,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash 467202225, now seen corresponding path program 1 times [2023-04-02 04:29:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160232233] [2023-04-02 04:29:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:29:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:29:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:29:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:30,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160232233] [2023-04-02 04:29:30,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160232233] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:30,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:30,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:29:30,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374858435] [2023-04-02 04:29:30,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:30,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:29:30,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:30,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:29:30,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:29:30,724 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:31,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:31,211 INFO L93 Difference]: Finished difference Result 286 states and 348 transitions. [2023-04-02 04:29:31,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:29:31,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2023-04-02 04:29:31,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:31,216 INFO L225 Difference]: With dead ends: 286 [2023-04-02 04:29:31,216 INFO L226 Difference]: Without dead ends: 176 [2023-04-02 04:29:31,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:29:31,223 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 146 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:31,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 63 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:29:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-04-02 04:29:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2023-04-02 04:29:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 96 states have internal predecessors, (106), 35 states have call successors, (35), 30 states have call predecessors, (35), 26 states have return successors, (31), 25 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-02 04:29:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2023-04-02 04:29:31,256 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 60 [2023-04-02 04:29:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:31,257 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2023-04-02 04:29:31,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:29:31,257 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2023-04-02 04:29:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 04:29:31,281 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:31,282 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:31,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:29:31,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:31,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash -669404474, now seen corresponding path program 1 times [2023-04-02 04:29:31,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:31,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080023714] [2023-04-02 04:29:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:31,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:29:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:29:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:31,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:31,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080023714] [2023-04-02 04:29:31,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080023714] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:31,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:31,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515833903] [2023-04-02 04:29:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:31,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:31,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:31,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:31,551 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 6 states have internal predecessors, (36), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:29:32,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:32,269 INFO L93 Difference]: Finished difference Result 295 states and 363 transitions. [2023-04-02 04:29:32,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:29:32,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 6 states have internal predecessors, (36), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 64 [2023-04-02 04:29:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:32,272 INFO L225 Difference]: With dead ends: 295 [2023-04-02 04:29:32,272 INFO L226 Difference]: Without dead ends: 176 [2023-04-02 04:29:32,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:29:32,274 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 349 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:32,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 65 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:29:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-04-02 04:29:32,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2023-04-02 04:29:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 95 states have internal predecessors, (105), 35 states have call successors, (35), 30 states have call predecessors, (35), 26 states have return successors, (31), 25 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-02 04:29:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2023-04-02 04:29:32,303 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 64 [2023-04-02 04:29:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:32,303 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2023-04-02 04:29:32,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 6 states have internal predecessors, (36), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:29:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2023-04-02 04:29:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-04-02 04:29:32,305 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:32,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:32,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:29:32,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:32,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:32,306 INFO L85 PathProgramCache]: Analyzing trace with hash -621559760, now seen corresponding path program 1 times [2023-04-02 04:29:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:32,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714394305] [2023-04-02 04:29:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:32,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 04:29:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:29:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:32,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714394305] [2023-04-02 04:29:32,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714394305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:32,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:32,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:29:32,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511533746] [2023-04-02 04:29:32,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:32,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:29:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:32,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:29:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:29:32,543 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-04-02 04:29:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:33,208 INFO L93 Difference]: Finished difference Result 400 states and 498 transitions. [2023-04-02 04:29:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:29:33,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 82 [2023-04-02 04:29:33,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:33,211 INFO L225 Difference]: With dead ends: 400 [2023-04-02 04:29:33,211 INFO L226 Difference]: Without dead ends: 281 [2023-04-02 04:29:33,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:29:33,213 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 407 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:33,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 98 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:29:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-04-02 04:29:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 238. [2023-04-02 04:29:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 142 states have (on average 1.204225352112676) internal successors, (171), 150 states have internal predecessors, (171), 48 states have call successors, (48), 44 states have call predecessors, (48), 47 states have return successors, (53), 48 states have call predecessors, (53), 44 states have call successors, (53) [2023-04-02 04:29:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 272 transitions. [2023-04-02 04:29:33,246 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 272 transitions. Word has length 82 [2023-04-02 04:29:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:33,247 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 272 transitions. [2023-04-02 04:29:33,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-04-02 04:29:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 272 transitions. [2023-04-02 04:29:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 04:29:33,248 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:33,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:33,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:29:33,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:33,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash 330854520, now seen corresponding path program 1 times [2023-04-02 04:29:33,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379523076] [2023-04-02 04:29:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:29:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 04:29:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:33,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:33,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379523076] [2023-04-02 04:29:33,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379523076] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:33,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:33,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:29:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040587920] [2023-04-02 04:29:33,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:33,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:29:33,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:33,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:29:33,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:29:33,530 INFO L87 Difference]: Start difference. First operand 238 states and 272 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:34,435 INFO L93 Difference]: Finished difference Result 490 states and 591 transitions. [2023-04-02 04:29:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 04:29:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 96 [2023-04-02 04:29:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:34,438 INFO L225 Difference]: With dead ends: 490 [2023-04-02 04:29:34,438 INFO L226 Difference]: Without dead ends: 280 [2023-04-02 04:29:34,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-04-02 04:29:34,440 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 247 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:34,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 121 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:29:34,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-04-02 04:29:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 243. [2023-04-02 04:29:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 146 states have (on average 1.1986301369863013) internal successors, (175), 154 states have internal predecessors, (175), 48 states have call successors, (48), 44 states have call predecessors, (48), 48 states have return successors, (54), 49 states have call predecessors, (54), 44 states have call successors, (54) [2023-04-02 04:29:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 277 transitions. [2023-04-02 04:29:34,486 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 277 transitions. Word has length 96 [2023-04-02 04:29:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:34,487 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 277 transitions. [2023-04-02 04:29:34,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 277 transitions. [2023-04-02 04:29:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 04:29:34,492 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:34,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:34,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:29:34,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:34,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:34,494 INFO L85 PathProgramCache]: Analyzing trace with hash 56094906, now seen corresponding path program 1 times [2023-04-02 04:29:34,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:34,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482067329] [2023-04-02 04:29:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:34,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:29:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 04:29:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:29:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482067329] [2023-04-02 04:29:34,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482067329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:34,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:34,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:34,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43511585] [2023-04-02 04:29:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:34,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:34,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:34,718 INFO L87 Difference]: Start difference. First operand 243 states and 277 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:35,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:35,591 INFO L93 Difference]: Finished difference Result 500 states and 600 transitions. [2023-04-02 04:29:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:29:35,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 96 [2023-04-02 04:29:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:35,596 INFO L225 Difference]: With dead ends: 500 [2023-04-02 04:29:35,596 INFO L226 Difference]: Without dead ends: 285 [2023-04-02 04:29:35,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:29:35,599 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 248 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:35,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 106 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:29:35,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-04-02 04:29:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 242. [2023-04-02 04:29:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 145 states have (on average 1.186206896551724) internal successors, (172), 153 states have internal predecessors, (172), 48 states have call successors, (48), 44 states have call predecessors, (48), 48 states have return successors, (54), 49 states have call predecessors, (54), 44 states have call successors, (54) [2023-04-02 04:29:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 274 transitions. [2023-04-02 04:29:35,635 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 274 transitions. Word has length 96 [2023-04-02 04:29:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:35,635 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 274 transitions. [2023-04-02 04:29:35,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 5 states have internal predecessors, (58), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 274 transitions. [2023-04-02 04:29:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 04:29:35,638 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:35,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:35,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:29:35,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:35,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash -770800889, now seen corresponding path program 1 times [2023-04-02 04:29:35,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523192355] [2023-04-02 04:29:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:35,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:29:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 04:29:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:35,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:35,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523192355] [2023-04-02 04:29:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523192355] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:35,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:35,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:29:35,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35153769] [2023-04-02 04:29:35,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:35,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:29:35,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:29:35,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:29:35,887 INFO L87 Difference]: Start difference. First operand 242 states and 274 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:36,763 INFO L93 Difference]: Finished difference Result 500 states and 598 transitions. [2023-04-02 04:29:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:29:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 97 [2023-04-02 04:29:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:36,766 INFO L225 Difference]: With dead ends: 500 [2023-04-02 04:29:36,766 INFO L226 Difference]: Without dead ends: 286 [2023-04-02 04:29:36,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:29:36,769 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 159 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:36,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 112 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:29:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-04-02 04:29:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 246. [2023-04-02 04:29:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 156 states have internal predecessors, (175), 48 states have call successors, (48), 44 states have call predecessors, (48), 49 states have return successors, (55), 50 states have call predecessors, (55), 44 states have call successors, (55) [2023-04-02 04:29:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 278 transitions. [2023-04-02 04:29:36,801 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 278 transitions. Word has length 97 [2023-04-02 04:29:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:36,801 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 278 transitions. [2023-04-02 04:29:36,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 278 transitions. [2023-04-02 04:29:36,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 04:29:36,803 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:36,803 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:36,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:29:36,804 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:36,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:36,804 INFO L85 PathProgramCache]: Analyzing trace with hash -698414331, now seen corresponding path program 1 times [2023-04-02 04:29:36,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:36,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867596726] [2023-04-02 04:29:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:36,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:36,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:29:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 04:29:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:37,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:37,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867596726] [2023-04-02 04:29:37,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867596726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:37,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:37,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:29:37,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604530966] [2023-04-02 04:29:37,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:37,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:29:37,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:37,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:29:37,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:29:37,038 INFO L87 Difference]: Start difference. First operand 246 states and 278 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:37,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:37,740 INFO L93 Difference]: Finished difference Result 501 states and 597 transitions. [2023-04-02 04:29:37,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:29:37,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 97 [2023-04-02 04:29:37,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:37,743 INFO L225 Difference]: With dead ends: 501 [2023-04-02 04:29:37,743 INFO L226 Difference]: Without dead ends: 283 [2023-04-02 04:29:37,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:29:37,745 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 333 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:37,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 88 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:29:37,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-04-02 04:29:37,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 246. [2023-04-02 04:29:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 148 states have (on average 1.1756756756756757) internal successors, (174), 156 states have internal predecessors, (174), 48 states have call successors, (48), 44 states have call predecessors, (48), 49 states have return successors, (55), 50 states have call predecessors, (55), 44 states have call successors, (55) [2023-04-02 04:29:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 277 transitions. [2023-04-02 04:29:37,769 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 277 transitions. Word has length 97 [2023-04-02 04:29:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:37,770 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 277 transitions. [2023-04-02 04:29:37,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 04:29:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 277 transitions. [2023-04-02 04:29:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 04:29:37,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:37,771 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:37,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:29:37,771 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:37,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash -441035128, now seen corresponding path program 1 times [2023-04-02 04:29:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:37,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960448582] [2023-04-02 04:29:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:37,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:29:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:29:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:29:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 04:29:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:37,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:37,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960448582] [2023-04-02 04:29:37,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960448582] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:37,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:37,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:29:37,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729850424] [2023-04-02 04:29:37,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:37,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:29:37,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:37,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:29:37,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:29:37,978 INFO L87 Difference]: Start difference. First operand 246 states and 277 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 5 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 04:29:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:38,736 INFO L93 Difference]: Finished difference Result 679 states and 841 transitions. [2023-04-02 04:29:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:29:38,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 5 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 97 [2023-04-02 04:29:38,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:38,740 INFO L225 Difference]: With dead ends: 679 [2023-04-02 04:29:38,740 INFO L226 Difference]: Without dead ends: 461 [2023-04-02 04:29:38,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:29:38,741 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 410 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:38,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 103 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:29:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-04-02 04:29:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 423. [2023-04-02 04:29:38,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 261 states have (on average 1.1685823754789273) internal successors, (305), 275 states have internal predecessors, (305), 82 states have call successors, (82), 76 states have call predecessors, (82), 79 states have return successors, (106), 81 states have call predecessors, (106), 78 states have call successors, (106) [2023-04-02 04:29:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 493 transitions. [2023-04-02 04:29:38,787 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 493 transitions. Word has length 97 [2023-04-02 04:29:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:38,788 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 493 transitions. [2023-04-02 04:29:38,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 5 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 04:29:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 493 transitions. [2023-04-02 04:29:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-02 04:29:38,790 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:38,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:38,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:29:38,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:38,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash -642126962, now seen corresponding path program 1 times [2023-04-02 04:29:38,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:38,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495449304] [2023-04-02 04:29:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:38,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:29:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:29:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 04:29:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 04:29:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:29:39,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:39,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495449304] [2023-04-02 04:29:39,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495449304] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:29:39,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:29:39,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:29:39,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120582949] [2023-04-02 04:29:39,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:29:39,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:29:39,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:39,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:29:39,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:29:39,155 INFO L87 Difference]: Start difference. First operand 423 states and 493 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-04-02 04:29:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:41,031 INFO L93 Difference]: Finished difference Result 1193 states and 1492 transitions. [2023-04-02 04:29:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-02 04:29:41,031 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 101 [2023-04-02 04:29:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:41,037 INFO L225 Difference]: With dead ends: 1193 [2023-04-02 04:29:41,037 INFO L226 Difference]: Without dead ends: 873 [2023-04-02 04:29:41,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=1656, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 04:29:41,040 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 689 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:41,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 284 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:29:41,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-04-02 04:29:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 733. [2023-04-02 04:29:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 454 states have (on average 1.1629955947136563) internal successors, (528), 477 states have internal predecessors, (528), 139 states have call successors, (139), 127 states have call predecessors, (139), 139 states have return successors, (178), 144 states have call predecessors, (178), 135 states have call successors, (178) [2023-04-02 04:29:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 845 transitions. [2023-04-02 04:29:41,115 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 845 transitions. Word has length 101 [2023-04-02 04:29:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:41,116 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 845 transitions. [2023-04-02 04:29:41,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 8 states have internal predecessors, (59), 6 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-04-02 04:29:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 845 transitions. [2023-04-02 04:29:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-02 04:29:41,118 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:41,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:41,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:29:41,119 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:41,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:41,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1111994768, now seen corresponding path program 1 times [2023-04-02 04:29:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:41,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970655341] [2023-04-02 04:29:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:41,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:29:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:29:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:29:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 04:29:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 04:29:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 04:29:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:29:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 04:29:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 04:29:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 04:29:41,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970655341] [2023-04-02 04:29:41,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970655341] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:29:41,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579549518] [2023-04-02 04:29:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:41,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:41,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:41,518 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) [2023-04-02 04:29:41,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:29:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:41,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 04:29:41,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:29:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:29:42,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:29:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 04:29:42,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579549518] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:29:42,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:29:42,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-04-02 04:29:42,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626732345] [2023-04-02 04:29:42,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:29:42,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 04:29:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 04:29:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:29:42,383 INFO L87 Difference]: Start difference. First operand 733 states and 845 transitions. Second operand has 23 states, 22 states have (on average 8.045454545454545) internal successors, (177), 14 states have internal predecessors, (177), 8 states have call successors, (70), 11 states have call predecessors, (70), 10 states have return successors, (56), 9 states have call predecessors, (56), 7 states have call successors, (56) [2023-04-02 04:29:45,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:45,421 INFO L93 Difference]: Finished difference Result 1592 states and 1898 transitions. [2023-04-02 04:29:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-04-02 04:29:45,422 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.045454545454545) internal successors, (177), 14 states have internal predecessors, (177), 8 states have call successors, (70), 11 states have call predecessors, (70), 10 states have return successors, (56), 9 states have call predecessors, (56), 7 states have call successors, (56) Word has length 178 [2023-04-02 04:29:45,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:45,428 INFO L225 Difference]: With dead ends: 1592 [2023-04-02 04:29:45,428 INFO L226 Difference]: Without dead ends: 958 [2023-04-02 04:29:45,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 422 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=847, Invalid=3709, Unknown=0, NotChecked=0, Total=4556 [2023-04-02 04:29:45,431 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 867 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 3220 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 3724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 3220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:45,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1016 Invalid, 3724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 3220 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 04:29:45,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2023-04-02 04:29:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 863. [2023-04-02 04:29:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 538 states have (on average 1.1765799256505576) internal successors, (633), 572 states have internal predecessors, (633), 165 states have call successors, (165), 153 states have call predecessors, (165), 159 states have return successors, (206), 159 states have call predecessors, (206), 161 states have call successors, (206) [2023-04-02 04:29:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1004 transitions. [2023-04-02 04:29:45,529 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1004 transitions. Word has length 178 [2023-04-02 04:29:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:45,530 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1004 transitions. [2023-04-02 04:29:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.045454545454545) internal successors, (177), 14 states have internal predecessors, (177), 8 states have call successors, (70), 11 states have call predecessors, (70), 10 states have return successors, (56), 9 states have call predecessors, (56), 7 states have call successors, (56) [2023-04-02 04:29:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1004 transitions. [2023-04-02 04:29:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-02 04:29:45,534 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:45,535 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:45,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:29:45,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-02 04:29:45,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:45,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 204261225, now seen corresponding path program 1 times [2023-04-02 04:29:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087307185] [2023-04-02 04:29:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:29:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:29:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:29:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:29:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:29:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:29:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 04:29:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:29:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 04:29:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-02 04:29:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-02 04:29:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-04-02 04:29:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 64 proven. 11 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-04-02 04:29:46,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087307185] [2023-04-02 04:29:46,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087307185] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:29:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032765974] [2023-04-02 04:29:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:46,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:46,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:46,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:29:46,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 04:29:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:46,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:29:46,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:29:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 204 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-04-02 04:29:46,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:29:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-04-02 04:29:47,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032765974] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:29:47,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:29:47,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 13] total 34 [2023-04-02 04:29:47,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293985957] [2023-04-02 04:29:47,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:29:47,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-04-02 04:29:47,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-04-02 04:29:47,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 04:29:47,691 INFO L87 Difference]: Start difference. First operand 863 states and 1004 transitions. Second operand has 34 states, 33 states have (on average 6.575757575757576) internal successors, (217), 23 states have internal predecessors, (217), 12 states have call successors, (96), 12 states have call predecessors, (96), 18 states have return successors, (92), 17 states have call predecessors, (92), 12 states have call successors, (92) [2023-04-02 04:29:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:53,207 INFO L93 Difference]: Finished difference Result 3054 states and 4185 transitions. [2023-04-02 04:29:53,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-04-02 04:29:53,208 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.575757575757576) internal successors, (217), 23 states have internal predecessors, (217), 12 states have call successors, (96), 12 states have call predecessors, (96), 18 states have return successors, (92), 17 states have call predecessors, (92), 12 states have call successors, (92) Word has length 297 [2023-04-02 04:29:53,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:53,219 INFO L225 Difference]: With dead ends: 3054 [2023-04-02 04:29:53,220 INFO L226 Difference]: Without dead ends: 2227 [2023-04-02 04:29:53,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 692 SyntacticMatches, 7 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3882 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2122, Invalid=10760, Unknown=0, NotChecked=0, Total=12882 [2023-04-02 04:29:53,227 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 2382 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 7148 mSolverCounterSat, 1527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 8675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 7148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:53,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 2030 Invalid, 8675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1527 Valid, 7148 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-02 04:29:53,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2023-04-02 04:29:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 1574. [2023-04-02 04:29:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 991 states have (on average 1.1271442986881937) internal successors, (1117), 1039 states have internal predecessors, (1117), 302 states have call successors, (302), 283 states have call predecessors, (302), 280 states have return successors, (361), 284 states have call predecessors, (361), 298 states have call successors, (361) [2023-04-02 04:29:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 1780 transitions. [2023-04-02 04:29:53,441 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 1780 transitions. Word has length 297 [2023-04-02 04:29:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:53,442 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 1780 transitions. [2023-04-02 04:29:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.575757575757576) internal successors, (217), 23 states have internal predecessors, (217), 12 states have call successors, (96), 12 states have call predecessors, (96), 18 states have return successors, (92), 17 states have call predecessors, (92), 12 states have call successors, (92) [2023-04-02 04:29:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 1780 transitions. [2023-04-02 04:29:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-04-02 04:29:53,448 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:53,448 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:53,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 04:29:53,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 04:29:53,658 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:53,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash -394967637, now seen corresponding path program 1 times [2023-04-02 04:29:53,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:53,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106313224] [2023-04-02 04:29:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:53,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:29:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:29:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:29:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:29:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:29:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:29:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:29:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:29:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 04:29:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:29:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:29:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-04-02 04:29:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-02 04:29:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-04-02 04:29:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-04-02 04:29:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 04:29:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 89 proven. 46 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-04-02 04:29:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:54,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106313224] [2023-04-02 04:29:54,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106313224] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:29:54,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312865833] [2023-04-02 04:29:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:54,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:54,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:54,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:29:54,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 04:29:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:54,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 04:29:54,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:29:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 244 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-04-02 04:29:54,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:29:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 95 proven. 61 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-04-02 04:29:55,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312865833] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:29:55,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:29:55,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 28 [2023-04-02 04:29:55,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276336984] [2023-04-02 04:29:55,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:29:55,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 04:29:55,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:29:55,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 04:29:55,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2023-04-02 04:29:55,624 INFO L87 Difference]: Start difference. First operand 1574 states and 1780 transitions. Second operand has 28 states, 27 states have (on average 9.185185185185185) internal successors, (248), 18 states have internal predecessors, (248), 8 states have call successors, (101), 11 states have call predecessors, (101), 14 states have return successors, (91), 12 states have call predecessors, (91), 8 states have call successors, (91) [2023-04-02 04:29:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:29:57,781 INFO L93 Difference]: Finished difference Result 3153 states and 3705 transitions. [2023-04-02 04:29:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 04:29:57,782 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 9.185185185185185) internal successors, (248), 18 states have internal predecessors, (248), 8 states have call successors, (101), 11 states have call predecessors, (101), 14 states have return successors, (91), 12 states have call predecessors, (91), 8 states have call successors, (91) Word has length 317 [2023-04-02 04:29:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:29:57,791 INFO L225 Difference]: With dead ends: 3153 [2023-04-02 04:29:57,791 INFO L226 Difference]: Without dead ends: 1777 [2023-04-02 04:29:57,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=641, Invalid=2781, Unknown=0, NotChecked=0, Total=3422 [2023-04-02 04:29:57,797 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1284 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:29:57,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 350 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:29:57,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2023-04-02 04:29:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1574. [2023-04-02 04:29:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 991 states have (on average 1.1231079717457113) internal successors, (1113), 1039 states have internal predecessors, (1113), 302 states have call successors, (302), 283 states have call predecessors, (302), 280 states have return successors, (361), 284 states have call predecessors, (361), 298 states have call successors, (361) [2023-04-02 04:29:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 1776 transitions. [2023-04-02 04:29:58,022 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 1776 transitions. Word has length 317 [2023-04-02 04:29:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:29:58,024 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 1776 transitions. [2023-04-02 04:29:58,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 9.185185185185185) internal successors, (248), 18 states have internal predecessors, (248), 8 states have call successors, (101), 11 states have call predecessors, (101), 14 states have return successors, (91), 12 states have call predecessors, (91), 8 states have call successors, (91) [2023-04-02 04:29:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 1776 transitions. [2023-04-02 04:29:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-04-02 04:29:58,031 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:29:58,031 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:29:58,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-02 04:29:58,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:58,238 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:29:58,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:29:58,239 INFO L85 PathProgramCache]: Analyzing trace with hash -962383903, now seen corresponding path program 1 times [2023-04-02 04:29:58,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:29:58,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805707894] [2023-04-02 04:29:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:58,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:29:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:29:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:29:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:29:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:29:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:29:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:29:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:29:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:29:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:29:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:29:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:29:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:29:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 04:29:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 04:29:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:29:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:29:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:29:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:29:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:29:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 04:29:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-04-02 04:29:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:29:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-04-02 04:29:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:29:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:29:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:29:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-04-02 04:29:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-04-02 04:29:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:58,930 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 91 proven. 45 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-04-02 04:29:58,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:29:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805707894] [2023-04-02 04:29:58,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805707894] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:29:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667350731] [2023-04-02 04:29:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:29:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:29:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:29:58,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:29:58,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 04:29:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:29:59,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-02 04:29:59,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:29:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 171 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-04-02 04:29:59,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 98 proven. 27 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-04-02 04:30:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667350731] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:00,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 13] total 26 [2023-04-02 04:30:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964508855] [2023-04-02 04:30:00,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:00,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-04-02 04:30:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:00,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-04-02 04:30:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:30:00,152 INFO L87 Difference]: Start difference. First operand 1574 states and 1776 transitions. Second operand has 26 states, 25 states have (on average 8.92) internal successors, (223), 19 states have internal predecessors, (223), 16 states have call successors, (104), 13 states have call predecessors, (104), 14 states have return successors, (90), 15 states have call predecessors, (90), 16 states have call successors, (90) [2023-04-02 04:30:03,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:03,463 INFO L93 Difference]: Finished difference Result 3828 states and 4963 transitions. [2023-04-02 04:30:03,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-04-02 04:30:03,463 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.92) internal successors, (223), 19 states have internal predecessors, (223), 16 states have call successors, (104), 13 states have call predecessors, (104), 14 states have return successors, (90), 15 states have call predecessors, (90), 16 states have call successors, (90) Word has length 318 [2023-04-02 04:30:03,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:03,481 INFO L225 Difference]: With dead ends: 3828 [2023-04-02 04:30:03,481 INFO L226 Difference]: Without dead ends: 3059 [2023-04-02 04:30:03,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 773 SyntacticMatches, 12 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1957 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1514, Invalid=4966, Unknown=0, NotChecked=0, Total=6480 [2023-04-02 04:30:03,487 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1927 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 1252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 4205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:03,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 762 Invalid, 4205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1252 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 04:30:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-04-02 04:30:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2009. [2023-04-02 04:30:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1265 states have (on average 1.125691699604743) internal successors, (1424), 1321 states have internal predecessors, (1424), 389 states have call successors, (389), 366 states have call predecessors, (389), 354 states have return successors, (457), 360 states have call predecessors, (457), 385 states have call successors, (457) [2023-04-02 04:30:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2270 transitions. [2023-04-02 04:30:03,742 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2270 transitions. Word has length 318 [2023-04-02 04:30:03,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:03,743 INFO L495 AbstractCegarLoop]: Abstraction has 2009 states and 2270 transitions. [2023-04-02 04:30:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.92) internal successors, (223), 19 states have internal predecessors, (223), 16 states have call successors, (104), 13 states have call predecessors, (104), 14 states have return successors, (90), 15 states have call predecessors, (90), 16 states have call successors, (90) [2023-04-02 04:30:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2270 transitions. [2023-04-02 04:30:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2023-04-02 04:30:03,752 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:30:03,752 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:30:03,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-02 04:30:03,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:03,960 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:30:03,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:30:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -506972551, now seen corresponding path program 1 times [2023-04-02 04:30:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:30:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587759456] [2023-04-02 04:30:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:03,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:30:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:30:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:30:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:30:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:30:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:30:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:30:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:30:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:30:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:30:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:30:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:30:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 04:30:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 04:30:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:30:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:30:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:30:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:30:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 04:30:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-02 04:30:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:30:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:30:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:30:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-04-02 04:30:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 04:30:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:30:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-04-02 04:30:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:30:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:30:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:30:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-04-02 04:30:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-04-02 04:30:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 114 proven. 73 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-04-02 04:30:04,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:30:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587759456] [2023-04-02 04:30:04,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587759456] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:30:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182055785] [2023-04-02 04:30:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:30:04,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:30:04,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:30:04,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:30:04,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 04:30:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:30:04,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 42 conjunts are in the unsatisfiable core [2023-04-02 04:30:04,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:30:05,319 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 226 proven. 49 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-04-02 04:30:05,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:30:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 126 proven. 75 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-04-02 04:30:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182055785] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:30:06,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:30:06,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 17] total 35 [2023-04-02 04:30:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049840647] [2023-04-02 04:30:06,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:30:06,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-04-02 04:30:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:30:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-04-02 04:30:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=995, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 04:30:06,387 INFO L87 Difference]: Start difference. First operand 2009 states and 2270 transitions. Second operand has 35 states, 33 states have (on average 7.787878787878788) internal successors, (257), 26 states have internal predecessors, (257), 19 states have call successors, (113), 15 states have call predecessors, (113), 21 states have return successors, (109), 20 states have call predecessors, (109), 19 states have call successors, (109) [2023-04-02 04:30:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:30:11,741 INFO L93 Difference]: Finished difference Result 7287 states and 9610 transitions. [2023-04-02 04:30:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-04-02 04:30:11,742 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 7.787878787878788) internal successors, (257), 26 states have internal predecessors, (257), 19 states have call successors, (113), 15 states have call predecessors, (113), 21 states have return successors, (109), 20 states have call predecessors, (109), 19 states have call successors, (109) Word has length 391 [2023-04-02 04:30:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:30:11,744 INFO L225 Difference]: With dead ends: 7287 [2023-04-02 04:30:11,744 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:30:11,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1089 GetRequests, 949 SyntacticMatches, 20 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5056 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3132, Invalid=11630, Unknown=0, NotChecked=0, Total=14762 [2023-04-02 04:30:11,764 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2462 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 4584 mSolverCounterSat, 1447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 6031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1447 IncrementalHoareTripleChecker+Valid, 4584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:30:11,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 1532 Invalid, 6031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1447 Valid, 4584 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 04:30:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:30:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:30:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 04:30:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:30:11,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2023-04-02 04:30:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:30:11,767 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:30:11,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 7.787878787878788) internal successors, (257), 26 states have internal predecessors, (257), 19 states have call successors, (113), 15 states have call predecessors, (113), 21 states have return successors, (109), 20 states have call predecessors, (109), 19 states have call successors, (109) [2023-04-02 04:30:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:30:11,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:30:11,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:30:11,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 04:30:11,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 04:30:11,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.