/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_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:05:12,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:05:12,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:05:12,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:05:12,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:05:12,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:05:12,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:05:12,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:05:12,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:05:12,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:05:12,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:05:12,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:05:12,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:05:12,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:05:12,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:05:12,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:05:12,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:05:12,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:05:12,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:05:12,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:05:12,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:05:12,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:05:12,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:05:12,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:05:12,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:05:12,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:05:12,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:05:12,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:05:12,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:05:12,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:05:12,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:05:12,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:05:12,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:05:12,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:05:12,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:05:12,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:05:12,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:05:12,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:05:12,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:05:12,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:05:12,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:05:12,492 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 04:05:12,523 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:05:12,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:05:12,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:05:12,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:05:12,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:05:12,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:05:12,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:05:12,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:05:12,526 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:05:12,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:05:12,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:05:12,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:05:12,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:05:12,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:05:12,529 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:05:12,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:05:12,530 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:05:12,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:05:12,530 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:05:12,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:05:12,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:05:12,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:05:12,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:05:12,778 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:05:12,779 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:05:12,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2023-04-02 04:05:13,936 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:05:14,153 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:05:14,153 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2023-04-02 04:05:14,169 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c535a487f/739dc369a4da41159d11d8228fa0e13a/FLAGe35e641e0 [2023-04-02 04:05:14,183 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c535a487f/739dc369a4da41159d11d8228fa0e13a [2023-04-02 04:05:14,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:05:14,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:05:14,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:05:14,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:05:14,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:05:14,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b7e022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14, skipping insertion in model container [2023-04-02 04:05:14,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:05:14,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:05:14,452 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_spec1_product39.cil.c[11731,11744] [2023-04-02 04:05:14,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:05:14,510 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:05:14,553 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_spec1_product39.cil.c[11731,11744] [2023-04-02 04:05:14,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:05:14,606 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:05:14,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14 WrapperNode [2023-04-02 04:05:14,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:05:14,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:05:14,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:05:14,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:05:14,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,677 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:05:14,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:05:14,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:05:14,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:05:14,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (1/1) ... [2023-04-02 04:05:14,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:05:14,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:05:14,718 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 04:05:14,720 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 04:05:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:05:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:05:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:05:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:05:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:05:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:05:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:05:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:05:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:05:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:05:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:05:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:05:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:05:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:05:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:05:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:05:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:05:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:05:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:05:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:05:14,949 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:05:14,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:05:15,451 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:05:15,470 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:05:15,471 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:05:15,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:05:15 BoogieIcfgContainer [2023-04-02 04:05:15,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:05:15,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:05:15,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:05:15,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:05:15,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:05:14" (1/3) ... [2023-04-02 04:05:15,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402fd119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:05:15, skipping insertion in model container [2023-04-02 04:05:15,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:05:14" (2/3) ... [2023-04-02 04:05:15,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402fd119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:05:15, skipping insertion in model container [2023-04-02 04:05:15,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:05:15" (3/3) ... [2023-04-02 04:05:15,481 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2023-04-02 04:05:15,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:05:15,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:05:15,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:05:15,542 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;@71968ba8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:05:15,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:05:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 108 states have internal predecessors, (123), 47 states have call successors, (47), 28 states have call predecessors, (47), 28 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2023-04-02 04:05:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 04:05:15,560 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:15,561 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] [2023-04-02 04:05:15,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:15,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash 195491688, now seen corresponding path program 1 times [2023-04-02 04:05:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:15,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421144153] [2023-04-02 04:05:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:05:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:05:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:15,892 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 04:05:15,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:15,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421144153] [2023-04-02 04:05:15,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421144153] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:15,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:15,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:05:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609486532] [2023-04-02 04:05:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:15,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:05:15,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:15,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:05:15,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:05:15,927 INFO L87 Difference]: Start difference. First operand has 172 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 108 states have internal predecessors, (123), 47 states have call successors, (47), 28 states have call predecessors, (47), 28 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 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:16,437 INFO L93 Difference]: Finished difference Result 301 states and 397 transitions. [2023-04-02 04:05:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:05:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-04-02 04:05:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:16,450 INFO L225 Difference]: With dead ends: 301 [2023-04-02 04:05:16,450 INFO L226 Difference]: Without dead ends: 163 [2023-04-02 04:05:16,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:05:16,457 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 93 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:16,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 24 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:05:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-04-02 04:05:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 129. [2023-04-02 04:05:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 86 states have internal predecessors, (94), 32 states have call successors, (32), 26 states have call predecessors, (32), 21 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:05:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2023-04-02 04:05:16,514 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 46 [2023-04-02 04:05:16,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:16,514 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2023-04-02 04:05:16,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:16,514 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2023-04-02 04:05:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-02 04:05:16,517 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:16,517 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] [2023-04-02 04:05:16,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:05:16,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:16,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:16,518 INFO L85 PathProgramCache]: Analyzing trace with hash -694407646, now seen corresponding path program 1 times [2023-04-02 04:05:16,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:16,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397336377] [2023-04-02 04:05:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:16,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:05:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:05:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:16,631 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 04:05:16,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397336377] [2023-04-02 04:05:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397336377] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:16,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:16,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:05:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924192775] [2023-04-02 04:05:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:16,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:05:16,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:16,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:05:16,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:05:16,634 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:17,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:17,019 INFO L93 Difference]: Finished difference Result 228 states and 280 transitions. [2023-04-02 04:05:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:05:17,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-04-02 04:05:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:17,022 INFO L225 Difference]: With dead ends: 228 [2023-04-02 04:05:17,022 INFO L226 Difference]: Without dead ends: 147 [2023-04-02 04:05:17,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 04:05:17,024 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 103 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:17,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 31 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:05:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-04-02 04:05:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 120. [2023-04-02 04:05:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 80 states have internal predecessors, (87), 29 states have call successors, (29), 25 states have call predecessors, (29), 21 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-02 04:05:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2023-04-02 04:05:17,049 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 47 [2023-04-02 04:05:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:17,050 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2023-04-02 04:05:17,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-02 04:05:17,050 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2023-04-02 04:05:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-02 04:05:17,052 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:17,052 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] [2023-04-02 04:05:17,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:05:17,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:17,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1001952308, now seen corresponding path program 1 times [2023-04-02 04:05:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:17,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017246893] [2023-04-02 04:05:17,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:17,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:05:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:05:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:17,360 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 04:05:17,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:17,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017246893] [2023-04-02 04:05:17,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017246893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:17,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:17,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:05:17,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774858537] [2023-04-02 04:05:17,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:17,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:05:17,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:17,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:05:17,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:05:17,367 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:05:18,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:18,276 INFO L93 Difference]: Finished difference Result 412 states and 515 transitions. [2023-04-02 04:05:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:05:18,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 51 [2023-04-02 04:05:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:18,280 INFO L225 Difference]: With dead ends: 412 [2023-04-02 04:05:18,280 INFO L226 Difference]: Without dead ends: 316 [2023-04-02 04:05:18,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:05:18,282 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 317 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:18,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 108 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:05:18,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-04-02 04:05:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 258. [2023-04-02 04:05:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.2967741935483872) internal successors, (201), 177 states have internal predecessors, (201), 58 states have call successors, (58), 50 states have call predecessors, (58), 44 states have return successors, (55), 42 states have call predecessors, (55), 54 states have call successors, (55) [2023-04-02 04:05:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 314 transitions. [2023-04-02 04:05:18,337 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 314 transitions. Word has length 51 [2023-04-02 04:05:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:18,337 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 314 transitions. [2023-04-02 04:05:18,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-02 04:05:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 314 transitions. [2023-04-02 04:05:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:05:18,340 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:18,340 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] [2023-04-02 04:05:18,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:05:18,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:18,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1848208841, now seen corresponding path program 1 times [2023-04-02 04:05:18,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:18,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039004801] [2023-04-02 04:05:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:18,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:05:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:05:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:18,491 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 04:05:18,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:18,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039004801] [2023-04-02 04:05:18,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039004801] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:18,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:18,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:05:18,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094809978] [2023-04-02 04:05:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:18,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:05:18,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:18,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:05:18,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:05:18,494 INFO L87 Difference]: Start difference. First operand 258 states and 314 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 04:05:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:19,309 INFO L93 Difference]: Finished difference Result 832 states and 1087 transitions. [2023-04-02 04:05:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:05:19,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-04-02 04:05:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:19,316 INFO L225 Difference]: With dead ends: 832 [2023-04-02 04:05:19,316 INFO L226 Difference]: Without dead ends: 598 [2023-04-02 04:05:19,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:05:19,327 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 373 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:19,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 78 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:05:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-04-02 04:05:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 471. [2023-04-02 04:05:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 286 states have (on average 1.2902097902097902) internal successors, (369), 329 states have internal predecessors, (369), 104 states have call successors, (104), 88 states have call predecessors, (104), 80 states have return successors, (105), 76 states have call predecessors, (105), 100 states have call successors, (105) [2023-04-02 04:05:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 578 transitions. [2023-04-02 04:05:19,427 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 578 transitions. Word has length 57 [2023-04-02 04:05:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:19,427 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 578 transitions. [2023-04-02 04:05:19,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-02 04:05:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 578 transitions. [2023-04-02 04:05:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 04:05:19,430 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:19,430 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] [2023-04-02 04:05:19,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:05:19,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:19,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -238190725, now seen corresponding path program 1 times [2023-04-02 04:05:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:19,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747354064] [2023-04-02 04:05:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:05:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:05:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:05:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:19,654 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 04:05:19,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:19,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747354064] [2023-04-02 04:05:19,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747354064] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:19,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:19,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:05:19,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426230777] [2023-04-02 04:05:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:19,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:05:19,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:05:19,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:05:19,659 INFO L87 Difference]: Start difference. First operand 471 states and 578 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 04:05:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:20,458 INFO L93 Difference]: Finished difference Result 1331 states and 1800 transitions. [2023-04-02 04:05:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:05:20,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2023-04-02 04:05:20,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:20,464 INFO L225 Difference]: With dead ends: 1331 [2023-04-02 04:05:20,464 INFO L226 Difference]: Without dead ends: 884 [2023-04-02 04:05:20,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:05:20,466 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 350 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:20,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 72 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:05:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2023-04-02 04:05:20,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 703. [2023-04-02 04:05:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 430 states have (on average 1.2325581395348837) internal successors, (530), 469 states have internal predecessors, (530), 138 states have call successors, (138), 118 states have call predecessors, (138), 134 states have return successors, (203), 140 states have call predecessors, (203), 134 states have call successors, (203) [2023-04-02 04:05:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 871 transitions. [2023-04-02 04:05:20,559 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 871 transitions. Word has length 61 [2023-04-02 04:05:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:20,559 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 871 transitions. [2023-04-02 04:05:20,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 04:05:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 871 transitions. [2023-04-02 04:05:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 04:05:20,561 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:20,561 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] [2023-04-02 04:05:20,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:05:20,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:20,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:20,562 INFO L85 PathProgramCache]: Analyzing trace with hash -494166814, now seen corresponding path program 1 times [2023-04-02 04:05:20,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:20,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261689881] [2023-04-02 04:05:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:20,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:05:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:05:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:05:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:20,728 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 04:05:20,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:20,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261689881] [2023-04-02 04:05:20,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261689881] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:20,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:20,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:05:20,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424588089] [2023-04-02 04:05:20,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:20,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:05:20,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:20,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:05:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:05:20,730 INFO L87 Difference]: Start difference. First operand 703 states and 871 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:21,569 INFO L93 Difference]: Finished difference Result 1647 states and 2256 transitions. [2023-04-02 04:05:21,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:05:21,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2023-04-02 04:05:21,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:21,575 INFO L225 Difference]: With dead ends: 1647 [2023-04-02 04:05:21,575 INFO L226 Difference]: Without dead ends: 968 [2023-04-02 04:05:21,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:05:21,578 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 322 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:21,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 65 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:05:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-04-02 04:05:21,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 725. [2023-04-02 04:05:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 446 states have (on average 1.2242152466367713) internal successors, (546), 485 states have internal predecessors, (546), 138 states have call successors, (138), 118 states have call predecessors, (138), 140 states have return successors, (211), 144 states have call predecessors, (211), 134 states have call successors, (211) [2023-04-02 04:05:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 895 transitions. [2023-04-02 04:05:21,662 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 895 transitions. Word has length 83 [2023-04-02 04:05:21,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:21,663 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 895 transitions. [2023-04-02 04:05:21,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 895 transitions. [2023-04-02 04:05:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 04:05:21,664 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:21,665 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] [2023-04-02 04:05:21,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:05:21,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:21,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -516799068, now seen corresponding path program 1 times [2023-04-02 04:05:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:21,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277012183] [2023-04-02 04:05:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:05:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:05:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:05:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:21,818 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 04:05:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277012183] [2023-04-02 04:05:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277012183] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:21,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:05:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089077105] [2023-04-02 04:05:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:21,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:05:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:05:21,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:05:21,820 INFO L87 Difference]: Start difference. First operand 725 states and 895 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:22,514 INFO L93 Difference]: Finished difference Result 1677 states and 2233 transitions. [2023-04-02 04:05:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:05:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2023-04-02 04:05:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:22,521 INFO L225 Difference]: With dead ends: 1677 [2023-04-02 04:05:22,521 INFO L226 Difference]: Without dead ends: 976 [2023-04-02 04:05:22,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:05:22,524 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 167 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:22,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 57 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:05:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-04-02 04:05:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 745. [2023-04-02 04:05:22,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 462 states have (on average 1.2164502164502164) internal successors, (562), 501 states have internal predecessors, (562), 138 states have call successors, (138), 118 states have call predecessors, (138), 144 states have return successors, (215), 148 states have call predecessors, (215), 134 states have call successors, (215) [2023-04-02 04:05:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 915 transitions. [2023-04-02 04:05:22,648 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 915 transitions. Word has length 83 [2023-04-02 04:05:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:22,648 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 915 transitions. [2023-04-02 04:05:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-02 04:05:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 915 transitions. [2023-04-02 04:05:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-04-02 04:05:22,650 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:22,651 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] [2023-04-02 04:05:22,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:05:22,651 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:22,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:22,651 INFO L85 PathProgramCache]: Analyzing trace with hash 531325185, now seen corresponding path program 1 times [2023-04-02 04:05:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372543779] [2023-04-02 04:05:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:05:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:05:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:05:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:05:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:05:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:05:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:05:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:05:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:05:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:05:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:05:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:05:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:05:22,805 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 04:05:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:05:22,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372543779] [2023-04-02 04:05:22,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372543779] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:05:22,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:05:22,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:05:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819580412] [2023-04-02 04:05:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:05:22,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:05:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:05:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:05:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:05:22,807 INFO L87 Difference]: Start difference. First operand 745 states and 915 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-02 04:05:23,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:05:23,602 INFO L93 Difference]: Finished difference Result 2582 states and 3529 transitions. [2023-04-02 04:05:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:05:23,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 83 [2023-04-02 04:05:23,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:05:23,613 INFO L225 Difference]: With dead ends: 2582 [2023-04-02 04:05:23,613 INFO L226 Difference]: Without dead ends: 1861 [2023-04-02 04:05:23,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:05:23,619 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 596 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:05:23,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 81 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:05:23,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2023-04-02 04:05:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1559. [2023-04-02 04:05:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 996 states have (on average 1.1927710843373494) internal successors, (1188), 1069 states have internal predecessors, (1188), 282 states have call successors, (282), 258 states have call predecessors, (282), 280 states have return successors, (459), 284 states have call predecessors, (459), 278 states have call successors, (459) [2023-04-02 04:05:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1929 transitions. [2023-04-02 04:05:23,809 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1929 transitions. Word has length 83 [2023-04-02 04:05:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:05:23,809 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 1929 transitions. [2023-04-02 04:05:23,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-02 04:05:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1929 transitions. [2023-04-02 04:05:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 04:05:23,816 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:05:23,816 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] [2023-04-02 04:05:23,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:05:23,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:05:23,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:05:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1828799015, now seen corresponding path program 1 times [2023-04-02 04:05:23,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:05:23,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144238516] [2023-04-02 04:05:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:05:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:05:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:05:23,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:05:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:05:23,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:05:23,883 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:05:23,884 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:05:23,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:05:23,921 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:05:23,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:05:24,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:05:24 BoogieIcfgContainer [2023-04-02 04:05:24,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:05:24,028 INFO L158 Benchmark]: Toolchain (without parser) took 9841.60ms. Allocated memory was 192.9MB in the beginning and 336.6MB in the end (delta: 143.7MB). Free memory was 133.3MB in the beginning and 292.8MB in the end (delta: -159.5MB). Peak memory consumption was 39.7MB. Max. memory is 8.0GB. [2023-04-02 04:05:24,028 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory was 143.7MB in the beginning and 143.5MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:05:24,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.27ms. Allocated memory is still 192.9MB. Free memory was 133.2MB in the beginning and 159.1MB in the end (delta: -25.9MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. [2023-04-02 04:05:24,029 INFO L158 Benchmark]: Boogie Preprocessor took 77.55ms. Allocated memory is still 192.9MB. Free memory was 159.1MB in the beginning and 156.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-02 04:05:24,029 INFO L158 Benchmark]: RCFGBuilder took 786.63ms. Allocated memory is still 192.9MB. Free memory was 155.5MB in the beginning and 116.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-04-02 04:05:24,029 INFO L158 Benchmark]: TraceAbstraction took 8550.71ms. Allocated memory was 192.9MB in the beginning and 336.6MB in the end (delta: 143.7MB). Free memory was 116.1MB in the beginning and 292.8MB in the end (delta: -176.6MB). Peak memory consumption was 21.5MB. Max. memory is 8.0GB. [2023-04-02 04:05:24,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory was 143.7MB in the beginning and 143.5MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 417.27ms. Allocated memory is still 192.9MB. Free memory was 133.2MB in the beginning and 159.1MB in the end (delta: -25.9MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.55ms. Allocated memory is still 192.9MB. Free memory was 159.1MB in the beginning and 156.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 786.63ms. Allocated memory is still 192.9MB. Free memory was 155.5MB in the beginning and 116.7MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8550.71ms. Allocated memory was 192.9MB in the beginning and 336.6MB in the end (delta: 143.7MB). Free memory was 116.1MB in the beginning and 292.8MB in the end (delta: -176.6MB). Peak memory consumption was 21.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 449]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L936] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L937] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L938] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L942] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L943] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L925] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L579] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L589] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] COND FALSE !(\read(methaneLevelCritical)) [L493] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L612] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L641] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L643] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L689] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L792] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L540] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L543] COND FALSE !(waterLevel < 2) [L547] retValue_acc = 0 [L548] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L792] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L792] tmp = isHighWaterSensorDry() [L794] COND FALSE !(\read(tmp)) [L797] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L799] retValue_acc = tmp___0 [L800] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L668] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L668] tmp = isHighWaterLevel() [L670] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L672] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L717] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L707] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L643] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L649] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L420] int tmp ; [L421] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L425] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L425] tmp = isMethaneLevelCritical() [L427] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L429] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L429] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L429] tmp___0 = isPumpRunning() [L431] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L433] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2447 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2321 mSDsluCounter, 516 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 418 mSDsCounter, 1288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5212 IncrementalHoareTripleChecker+Invalid, 6500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1288 mSolverCounterUnsat, 98 mSDtfsCounter, 5212 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1559occurred in iteration=8, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1203 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 503 ConstructedInterpolants, 0 QuantifiedInterpolants, 1108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-02 04:05:24,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...