/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_spec3_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:17:04,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:17:04,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:17:04,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:17:04,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:17:04,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:17:04,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:17:04,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:17:04,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:17:04,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:17:04,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:17:04,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:17:04,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:17:04,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:17:04,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:17:04,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:17:04,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:17:04,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:17:04,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:17:04,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:17:04,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:17:04,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:17:04,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:17:04,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:17:04,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:17:04,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:17:04,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:17:04,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:17:04,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:17:04,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:17:04,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:17:04,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:17:04,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:17:04,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:17:04,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:17:04,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:17:04,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:17:04,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:17:04,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:17:04,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:17:04,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:17:04,390 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 04:17:04,418 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:17:04,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:17:04,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:17:04,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:17:04,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:17:04,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:17:04,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:17:04,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:17:04,420 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:17:04,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:17:04,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:17:04,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:17:04,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:17:04,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:17:04,423 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:17:04,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:17:04,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:17:04,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:17:04,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:17:04,612 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:17:04,612 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:17:04,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2023-04-02 04:17:05,781 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:17:05,936 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:17:05,936 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2023-04-02 04:17:05,944 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a6f7e9/bcc5d2448ec9462e8fde42216dbdc11e/FLAG135739875 [2023-04-02 04:17:05,954 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a6f7e9/bcc5d2448ec9462e8fde42216dbdc11e [2023-04-02 04:17:05,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:17:05,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:17:05,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:17:05,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:17:05,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:17:05,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:17:05" (1/1) ... [2023-04-02 04:17:05,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34583060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:05, skipping insertion in model container [2023-04-02 04:17:05,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:17:05" (1/1) ... [2023-04-02 04:17:05,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:17:05,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:17:06,184 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_spec3_product38.cil.c[15422,15435] [2023-04-02 04:17:06,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:17:06,221 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:17:06,280 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_spec3_product38.cil.c[15422,15435] [2023-04-02 04:17:06,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:17:06,306 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:17:06,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06 WrapperNode [2023-04-02 04:17:06,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:17:06,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:17:06,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:17:06,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:17:06,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:17:06,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:17:06,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:17:06,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:17:06,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (1/1) ... [2023-04-02 04:17:06,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:17:06,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:17:06,432 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 04:17:06,439 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 04:17:06,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:17:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:17:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:17:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:17:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:17:06,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:17:06,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:17:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:17:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:17:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:17:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:17:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:17:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:17:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:17:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:17:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:17:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:17:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:17:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:17:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:17:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:17:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:17:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:17:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:17:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:17:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:17:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:17:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:17:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:17:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:17:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:17:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:17:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:17:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:17:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:17:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:17:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:17:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:17:06,637 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:17:06,640 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:17:07,123 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:17:07,131 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:17:07,131 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:17:07,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:17:07 BoogieIcfgContainer [2023-04-02 04:17:07,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:17:07,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:17:07,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:17:07,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:17:07,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:17:05" (1/3) ... [2023-04-02 04:17:07,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698279d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:17:07, skipping insertion in model container [2023-04-02 04:17:07,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:06" (2/3) ... [2023-04-02 04:17:07,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698279d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:17:07, skipping insertion in model container [2023-04-02 04:17:07,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:17:07" (3/3) ... [2023-04-02 04:17:07,143 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product38.cil.c [2023-04-02 04:17:07,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:17:07,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:17:07,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:17:07,209 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;@1bd9bc1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:17:07,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:17:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 110 states have internal predecessors, (126), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2023-04-02 04:17:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:17:07,220 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:07,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:07,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:07,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1779493020, now seen corresponding path program 1 times [2023-04-02 04:17:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:07,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425090698] [2023-04-02 04:17:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:17:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:17:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:17:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:07,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:07,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425090698] [2023-04-02 04:17:07,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425090698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:07,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:07,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:17:07,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598582600] [2023-04-02 04:17:07,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:07,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:17:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:07,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:17:07,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:17:07,537 INFO L87 Difference]: Start difference. First operand has 176 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 110 states have internal predecessors, (126), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:07,958 INFO L93 Difference]: Finished difference Result 308 states and 402 transitions. [2023-04-02 04:17:07,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:17:07,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:17:07,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:07,974 INFO L225 Difference]: With dead ends: 308 [2023-04-02 04:17:07,974 INFO L226 Difference]: Without dead ends: 166 [2023-04-02 04:17:07,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:17:07,983 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 97 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:07,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 23 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-04-02 04:17:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 133. [2023-04-02 04:17:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 88 states have internal predecessors, (97), 32 states have call successors, (32), 27 states have call predecessors, (32), 22 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:17:08,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2023-04-02 04:17:08,048 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 52 [2023-04-02 04:17:08,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:08,049 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2023-04-02 04:17:08,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2023-04-02 04:17:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:17:08,057 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:08,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:08,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:17:08,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:08,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1809040188, now seen corresponding path program 1 times [2023-04-02 04:17:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:08,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542254614] [2023-04-02 04:17:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:17:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:17:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:08,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:08,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542254614] [2023-04-02 04:17:08,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542254614] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:08,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:08,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:17:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838690449] [2023-04-02 04:17:08,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:17:08,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:08,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:17:08,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:17:08,217 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:08,500 INFO L93 Difference]: Finished difference Result 237 states and 289 transitions. [2023-04-02 04:17:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:17:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:17:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:08,503 INFO L225 Difference]: With dead ends: 237 [2023-04-02 04:17:08,503 INFO L226 Difference]: Without dead ends: 150 [2023-04-02 04:17:08,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:17:08,504 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 107 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:08,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 30 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:17:08,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-04-02 04:17:08,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 124. [2023-04-02 04:17:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 72 states have (on average 1.25) internal successors, (90), 82 states have internal predecessors, (90), 29 states have call successors, (29), 26 states have call predecessors, (29), 22 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-02 04:17:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2023-04-02 04:17:08,527 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 53 [2023-04-02 04:17:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:08,527 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2023-04-02 04:17:08,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2023-04-02 04:17:08,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:17:08,529 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:08,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:08,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:17:08,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:08,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:08,530 INFO L85 PathProgramCache]: Analyzing trace with hash 371062021, now seen corresponding path program 1 times [2023-04-02 04:17:08,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:08,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49775732] [2023-04-02 04:17:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:17:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:17:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:17:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:08,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:08,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49775732] [2023-04-02 04:17:08,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49775732] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:08,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:08,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964373913] [2023-04-02 04:17:08,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:08,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:08,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:08,732 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:17:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:09,177 INFO L93 Difference]: Finished difference Result 250 states and 307 transitions. [2023-04-02 04:17:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:17:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 58 [2023-04-02 04:17:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:09,179 INFO L225 Difference]: With dead ends: 250 [2023-04-02 04:17:09,179 INFO L226 Difference]: Without dead ends: 150 [2023-04-02 04:17:09,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:09,181 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 197 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:09,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 43 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-04-02 04:17:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 124. [2023-04-02 04:17:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 81 states have internal predecessors, (89), 29 states have call successors, (29), 26 states have call predecessors, (29), 22 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-02 04:17:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2023-04-02 04:17:09,199 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 58 [2023-04-02 04:17:09,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:09,199 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2023-04-02 04:17:09,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:17:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2023-04-02 04:17:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-02 04:17:09,200 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:09,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:09,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:17:09,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:09,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:09,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1383094632, now seen corresponding path program 1 times [2023-04-02 04:17:09,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682928610] [2023-04-02 04:17:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:09,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:17:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:17:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 04:17:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 04:17:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:09,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682928610] [2023-04-02 04:17:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682928610] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:09,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:17:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094559720] [2023-04-02 04:17:09,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:09,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:17:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:17:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:17:09,334 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-02 04:17:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:09,761 INFO L93 Difference]: Finished difference Result 359 states and 443 transitions. [2023-04-02 04:17:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:17:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 71 [2023-04-02 04:17:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:09,764 INFO L225 Difference]: With dead ends: 359 [2023-04-02 04:17:09,764 INFO L226 Difference]: Without dead ends: 259 [2023-04-02 04:17:09,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:17:09,765 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 246 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:09,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 83 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-04-02 04:17:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 216. [2023-04-02 04:17:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 139 states have internal predecessors, (157), 43 states have call successors, (43), 41 states have call predecessors, (43), 42 states have return successors, (46), 42 states have call predecessors, (46), 39 states have call successors, (46) [2023-04-02 04:17:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 246 transitions. [2023-04-02 04:17:09,796 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 246 transitions. Word has length 71 [2023-04-02 04:17:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:09,797 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 246 transitions. [2023-04-02 04:17:09,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-02 04:17:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 246 transitions. [2023-04-02 04:17:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 04:17:09,798 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:09,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:09,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:17:09,798 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:09,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:09,798 INFO L85 PathProgramCache]: Analyzing trace with hash -721681937, now seen corresponding path program 1 times [2023-04-02 04:17:09,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:09,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921136167] [2023-04-02 04:17:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:17:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:17:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 04:17:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 04:17:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:09,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:09,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921136167] [2023-04-02 04:17:09,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921136167] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:09,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:09,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:09,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850353483] [2023-04-02 04:17:09,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:09,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:09,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:09,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:09,962 INFO L87 Difference]: Start difference. First operand 216 states and 246 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:17:10,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:10,577 INFO L93 Difference]: Finished difference Result 578 states and 720 transitions. [2023-04-02 04:17:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:17:10,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 85 [2023-04-02 04:17:10,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:10,580 INFO L225 Difference]: With dead ends: 578 [2023-04-02 04:17:10,580 INFO L226 Difference]: Without dead ends: 386 [2023-04-02 04:17:10,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:17:10,582 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 210 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:10,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 68 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:17:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-04-02 04:17:10,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 343. [2023-04-02 04:17:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 210 states have (on average 1.2) internal successors, (252), 226 states have internal predecessors, (252), 66 states have call successors, (66), 62 states have call predecessors, (66), 66 states have return successors, (80), 65 states have call predecessors, (80), 62 states have call successors, (80) [2023-04-02 04:17:10,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 398 transitions. [2023-04-02 04:17:10,616 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 398 transitions. Word has length 85 [2023-04-02 04:17:10,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:10,616 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 398 transitions. [2023-04-02 04:17:10,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:17:10,617 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 398 transitions. [2023-04-02 04:17:10,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 04:17:10,618 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:10,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:10,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:17:10,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:10,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -546783883, now seen corresponding path program 1 times [2023-04-02 04:17:10,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:10,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682162064] [2023-04-02 04:17:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:10,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:17:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:17:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:17:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:17:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:10,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:10,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682162064] [2023-04-02 04:17:10,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682162064] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:10,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:17:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123269412] [2023-04-02 04:17:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:10,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:17:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:17:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:17:10,749 INFO L87 Difference]: Start difference. First operand 343 states and 398 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:17:11,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:11,561 INFO L93 Difference]: Finished difference Result 784 states and 993 transitions. [2023-04-02 04:17:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:17:11,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 89 [2023-04-02 04:17:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:11,564 INFO L225 Difference]: With dead ends: 784 [2023-04-02 04:17:11,564 INFO L226 Difference]: Without dead ends: 581 [2023-04-02 04:17:11,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:17:11,566 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 331 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:11,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 94 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:17:11,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-04-02 04:17:11,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 509. [2023-04-02 04:17:11,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 313 states have (on average 1.1916932907348243) internal successors, (373), 335 states have internal predecessors, (373), 96 states have call successors, (96), 89 states have call predecessors, (96), 99 states have return successors, (131), 99 states have call predecessors, (131), 92 states have call successors, (131) [2023-04-02 04:17:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 600 transitions. [2023-04-02 04:17:11,622 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 600 transitions. Word has length 89 [2023-04-02 04:17:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:11,623 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 600 transitions. [2023-04-02 04:17:11,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:17:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 600 transitions. [2023-04-02 04:17:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 04:17:11,624 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:11,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:11,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:17:11,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:11,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1469467466, now seen corresponding path program 1 times [2023-04-02 04:17:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428811812] [2023-04-02 04:17:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:17:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:17:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:17:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:17:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:11,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:11,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428811812] [2023-04-02 04:17:11,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428811812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:11,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:11,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:11,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204158405] [2023-04-02 04:17:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:11,721 INFO L87 Difference]: Start difference. First operand 509 states and 600 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:12,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:12,152 INFO L93 Difference]: Finished difference Result 942 states and 1157 transitions. [2023-04-02 04:17:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:17:12,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2023-04-02 04:17:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:12,157 INFO L225 Difference]: With dead ends: 942 [2023-04-02 04:17:12,157 INFO L226 Difference]: Without dead ends: 569 [2023-04-02 04:17:12,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:12,159 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 212 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:12,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 53 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-04-02 04:17:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 509. [2023-04-02 04:17:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 313 states have (on average 1.1884984025559104) internal successors, (372), 335 states have internal predecessors, (372), 96 states have call successors, (96), 89 states have call predecessors, (96), 99 states have return successors, (131), 99 states have call predecessors, (131), 92 states have call successors, (131) [2023-04-02 04:17:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 599 transitions. [2023-04-02 04:17:12,198 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 599 transitions. Word has length 89 [2023-04-02 04:17:12,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:12,198 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 599 transitions. [2023-04-02 04:17:12,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:12,198 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 599 transitions. [2023-04-02 04:17:12,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 04:17:12,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:12,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:12,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:17:12,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:12,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1981494328, now seen corresponding path program 1 times [2023-04-02 04:17:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:12,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593617704] [2023-04-02 04:17:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:17:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:17:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:17:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:17:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:12,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593617704] [2023-04-02 04:17:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593617704] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:12,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:12,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:17:12,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590535912] [2023-04-02 04:17:12,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:17:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:17:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:12,386 INFO L87 Difference]: Start difference. First operand 509 states and 599 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:13,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:13,053 INFO L93 Difference]: Finished difference Result 1049 states and 1291 transitions. [2023-04-02 04:17:13,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 04:17:13,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2023-04-02 04:17:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:13,057 INFO L225 Difference]: With dead ends: 1049 [2023-04-02 04:17:13,057 INFO L226 Difference]: Without dead ends: 564 [2023-04-02 04:17:13,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 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 04:17:13,059 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 291 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:13,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 75 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:17:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-04-02 04:17:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 509. [2023-04-02 04:17:13,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 317 states have (on average 1.1829652996845426) internal successors, (375), 338 states have internal predecessors, (375), 94 states have call successors, (94), 88 states have call predecessors, (94), 97 states have return successors, (128), 97 states have call predecessors, (128), 90 states have call successors, (128) [2023-04-02 04:17:13,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 597 transitions. [2023-04-02 04:17:13,098 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 597 transitions. Word has length 89 [2023-04-02 04:17:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:13,098 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 597 transitions. [2023-04-02 04:17:13,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 597 transitions. [2023-04-02 04:17:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 04:17:13,099 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:13,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:17:13,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:13,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:13,100 INFO L85 PathProgramCache]: Analyzing trace with hash 373585996, now seen corresponding path program 1 times [2023-04-02 04:17:13,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:13,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269114983] [2023-04-02 04:17:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:13,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:17:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:17:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:17:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:17:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:13,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:13,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269114983] [2023-04-02 04:17:13,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269114983] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:13,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:13,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:17:13,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664351735] [2023-04-02 04:17:13,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:13,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:17:13,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:17:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:17:13,252 INFO L87 Difference]: Start difference. First operand 509 states and 597 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:14,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:14,149 INFO L93 Difference]: Finished difference Result 1036 states and 1240 transitions. [2023-04-02 04:17:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 04:17:14,149 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-04-02 04:17:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:14,152 INFO L225 Difference]: With dead ends: 1036 [2023-04-02 04:17:14,152 INFO L226 Difference]: Without dead ends: 551 [2023-04-02 04:17:14,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:17:14,154 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 291 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:14,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 262 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:17:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-04-02 04:17:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 509. [2023-04-02 04:17:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 317 states have (on average 1.167192429022082) internal successors, (370), 338 states have internal predecessors, (370), 94 states have call successors, (94), 88 states have call predecessors, (94), 97 states have return successors, (121), 97 states have call predecessors, (121), 90 states have call successors, (121) [2023-04-02 04:17:14,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 585 transitions. [2023-04-02 04:17:14,189 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 585 transitions. Word has length 90 [2023-04-02 04:17:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:14,190 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 585 transitions. [2023-04-02 04:17:14,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 8 states have internal predecessors, (56), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 585 transitions. [2023-04-02 04:17:14,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 04:17:14,192 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:14,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:14,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:17:14,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:14,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash -866143741, now seen corresponding path program 1 times [2023-04-02 04:17:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:14,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640059906] [2023-04-02 04:17:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:14,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:17:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:17:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:17:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 04:17:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:17:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:17:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 04:17:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 04:17:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 04:17:14,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:14,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640059906] [2023-04-02 04:17:14,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640059906] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:17:14,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259984774] [2023-04-02 04:17:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:14,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:17:14,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:17:14,409 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 04:17:14,433 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 04:17:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:14,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:17:14,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:17:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 04:17:14,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:17:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 04:17:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259984774] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:17:15,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:17:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 24 [2023-04-02 04:17:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675507866] [2023-04-02 04:17:15,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:17:15,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 04:17:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 04:17:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2023-04-02 04:17:15,157 INFO L87 Difference]: Start difference. First operand 509 states and 585 transitions. Second operand has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 17 states have internal predecessors, (154), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:17:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:18,122 INFO L93 Difference]: Finished difference Result 2004 states and 2835 transitions. [2023-04-02 04:17:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-04-02 04:17:18,123 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 17 states have internal predecessors, (154), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) Word has length 138 [2023-04-02 04:17:18,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:18,124 INFO L225 Difference]: With dead ends: 2004 [2023-04-02 04:17:18,124 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:17:18,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 316 SyntacticMatches, 12 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1243, Invalid=5077, Unknown=0, NotChecked=0, Total=6320 [2023-04-02 04:17:18,130 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1720 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 2944 mSolverCounterSat, 1185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1185 IncrementalHoareTripleChecker+Valid, 2944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:18,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 767 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1185 Valid, 2944 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 04:17:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:17:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:17:18,130 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 04:17:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:17:18,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2023-04-02 04:17:18,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:18,131 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:17:18,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.416666666666667) internal successors, (154), 17 states have internal predecessors, (154), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:17:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:17:18,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:17:18,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:17:18,155 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 04:17:18,341 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,SelfDestructingSolverStorable9 [2023-04-02 04:17:18,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 04:17:41,826 WARN L223 SmtUtils]: Spent 22.94s on a formula simplification. DAG size of input: 140 DAG size of output: 167 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 04:17:57,555 WARN L223 SmtUtils]: Spent 15.70s on a formula simplification. DAG size of input: 126 DAG size of output: 157 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)