/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:15:54,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:15:54,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:15:54,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:15:54,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:15:54,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:15:54,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:15:54,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:15:54,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:15:54,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:15:54,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:15:54,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:15:54,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:15:54,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:15:54,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:15:54,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:15:54,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:15:54,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:15:54,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:15:54,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:15:54,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:15:54,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:15:54,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:15:54,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:15:54,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:15:54,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:15:54,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:15:54,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:15:54,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:15:54,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:15:54,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:15:54,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:15:54,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:15:54,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:15:54,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:15:54,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:15:54,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:15:54,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:15:54,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:15:54,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:15:54,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:15:54,427 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 04:15:54,441 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:15:54,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:15:54,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:15:54,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:15:54,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:15:54,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:15:54,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:15:54,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:15:54,443 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:15:54,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:15:54,443 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:15:54,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:15:54,444 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:15:54,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:15:54,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:15:54,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:15:54,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:15:54,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:15:54,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:15:54,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:15:54,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:15:54,447 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:15:54,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:15:54,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:15:54,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:15:54,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:15:54,631 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:15:54,632 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:15:54,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2023-04-02 04:15:55,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:15:55,871 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:15:55,872 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2023-04-02 04:15:55,881 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4998bb266/bac5195cea924c499b9afd08fcc26864/FLAGe4148dfc6 [2023-04-02 04:15:55,891 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4998bb266/bac5195cea924c499b9afd08fcc26864 [2023-04-02 04:15:55,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:15:55,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:15:55,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:15:55,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:15:55,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:15:55,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:15:55" (1/1) ... [2023-04-02 04:15:55,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d7cf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:55, skipping insertion in model container [2023-04-02 04:15:55,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:15:55" (1/1) ... [2023-04-02 04:15:55,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:15:55,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:15:56,116 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2023-04-02 04:15:56,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:15:56,140 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:15:56,223 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17359,17372] [2023-04-02 04:15:56,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:15:56,238 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:15:56,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56 WrapperNode [2023-04-02 04:15:56,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:15:56,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:15:56,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:15:56,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:15:56,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:15:56,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:15:56,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:15:56,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:15:56,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (1/1) ... [2023-04-02 04:15:56,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:15:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:15:56,383 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 04:15:56,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:15:56,475 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:15:56,476 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:15:56,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:15:56,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:15:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:15:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:15:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:15:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:15:56,480 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:15:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:15:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:15:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:15:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:15:56,481 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:15:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:15:56,482 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:15:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:15:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:15:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:15:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:15:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:15:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:15:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:15:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:15:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:15:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:15:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:15:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:15:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:15:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:15:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:15:56,669 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:15:56,671 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:15:57,051 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:15:57,057 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:15:57,057 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:15:57,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:15:57 BoogieIcfgContainer [2023-04-02 04:15:57,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:15:57,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:15:57,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:15:57,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:15:57,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:15:55" (1/3) ... [2023-04-02 04:15:57,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166295dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:15:57, skipping insertion in model container [2023-04-02 04:15:57,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:56" (2/3) ... [2023-04-02 04:15:57,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166295dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:15:57, skipping insertion in model container [2023-04-02 04:15:57,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:15:57" (3/3) ... [2023-04-02 04:15:57,064 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2023-04-02 04:15:57,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:15:57,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:15:57,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:15:57,115 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;@5129d0c9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:15:57,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:15:57,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 96 states have internal predecessors, (109), 40 states have call successors, (40), 25 states have call predecessors, (40), 25 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-04-02 04:15:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:15:57,124 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:57,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:57,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:57,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1482870100, now seen corresponding path program 1 times [2023-04-02 04:15:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:57,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914512748] [2023-04-02 04:15:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:15:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:15:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:15:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,408 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 04:15:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914512748] [2023-04-02 04:15:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914512748] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:57,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:57,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:15:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819328299] [2023-04-02 04:15:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:57,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:15:57,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:57,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:15:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:15:57,445 INFO L87 Difference]: Start difference. First operand has 154 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 96 states have internal predecessors, (109), 40 states have call successors, (40), 25 states have call predecessors, (40), 25 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:57,742 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2023-04-02 04:15:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:15:57,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:15:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:57,750 INFO L225 Difference]: With dead ends: 240 [2023-04-02 04:15:57,750 INFO L226 Difference]: Without dead ends: 131 [2023-04-02 04:15:57,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:15:57,755 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 70 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:57,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 22 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:15:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-04-02 04:15:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2023-04-02 04:15:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 24 states have call successors, (24), 22 states have call predecessors, (24), 17 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-04-02 04:15:57,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2023-04-02 04:15:57,835 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2023-04-02 04:15:57,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:57,835 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2023-04-02 04:15:57,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:57,836 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2023-04-02 04:15:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:15:57,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:57,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:57,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:15:57,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:57,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -185408400, now seen corresponding path program 1 times [2023-04-02 04:15:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:57,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58676281] [2023-04-02 04:15:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:57,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:15:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:15:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:15:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,949 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 04:15:57,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58676281] [2023-04-02 04:15:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58676281] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:15:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868719650] [2023-04-02 04:15:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:57,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:15:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:57,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:15:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:15:57,952 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:58,192 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2023-04-02 04:15:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:15:58,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:15:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:58,194 INFO L225 Difference]: With dead ends: 160 [2023-04-02 04:15:58,194 INFO L226 Difference]: Without dead ends: 115 [2023-04-02 04:15:58,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:15:58,196 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 80 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:58,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 30 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:15:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-04-02 04:15:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2023-04-02 04:15:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 52 states have (on average 1.25) internal successors, (65), 60 states have internal predecessors, (65), 21 states have call successors, (21), 21 states have call predecessors, (21), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-04-02 04:15:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2023-04-02 04:15:58,215 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2023-04-02 04:15:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:58,215 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2023-04-02 04:15:58,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2023-04-02 04:15:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:15:58,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:58,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:58,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:15:58,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:58,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 745722865, now seen corresponding path program 1 times [2023-04-02 04:15:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:58,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866181019] [2023-04-02 04:15:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:15:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:15:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:15:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,404 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 04:15:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:58,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866181019] [2023-04-02 04:15:58,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866181019] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:58,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:58,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:15:58,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202474321] [2023-04-02 04:15:58,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:58,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:15:58,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:58,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:15:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:15:58,406 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:15:58,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:58,917 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2023-04-02 04:15:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:15:58,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 58 [2023-04-02 04:15:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:58,919 INFO L225 Difference]: With dead ends: 326 [2023-04-02 04:15:58,920 INFO L226 Difference]: Without dead ends: 259 [2023-04-02 04:15:58,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 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 04:15:58,921 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 280 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:58,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 79 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:15:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-04-02 04:15:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2023-04-02 04:15:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 130 states have internal predecessors, (152), 38 states have call successors, (38), 38 states have call predecessors, (38), 34 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2023-04-02 04:15:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2023-04-02 04:15:58,954 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2023-04-02 04:15:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:58,955 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2023-04-02 04:15:58,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:15:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2023-04-02 04:15:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 04:15:58,956 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:58,956 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 04:15:58,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:15:58,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:58,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1840044037, now seen corresponding path program 1 times [2023-04-02 04:15:58,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:58,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203458192] [2023-04-02 04:15:58,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:15:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:15:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:15:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:15:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:59,098 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 04:15:59,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:59,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203458192] [2023-04-02 04:15:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203458192] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:59,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:59,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:15:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239756625] [2023-04-02 04:15:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:59,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:15:59,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:15:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:15:59,100 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:15:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:59,511 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2023-04-02 04:15:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:15:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 61 [2023-04-02 04:15:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:59,514 INFO L225 Difference]: With dead ends: 537 [2023-04-02 04:15:59,514 INFO L226 Difference]: Without dead ends: 371 [2023-04-02 04:15:59,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:15:59,516 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 125 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:59,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 75 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:15:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-04-02 04:15:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2023-04-02 04:15:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 216 states have (on average 1.2731481481481481) internal successors, (275), 241 states have internal predecessors, (275), 69 states have call successors, (69), 64 states have call predecessors, (69), 63 states have return successors, (81), 62 states have call predecessors, (81), 65 states have call successors, (81) [2023-04-02 04:15:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2023-04-02 04:15:59,563 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2023-04-02 04:15:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:59,564 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2023-04-02 04:15:59,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:15:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2023-04-02 04:15:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:15:59,565 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:59,566 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] [2023-04-02 04:15:59,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:15:59,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:59,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1449794175, now seen corresponding path program 1 times [2023-04-02 04:15:59,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701296323] [2023-04-02 04:15:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:15:59,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:15:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:15:59,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:15:59,604 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:15:59,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:15:59,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:15:59,608 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:15:59,611 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:15:59,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:15:59 BoogieIcfgContainer [2023-04-02 04:15:59,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:15:59,637 INFO L158 Benchmark]: Toolchain (without parser) took 3743.92ms. Allocated memory was 295.7MB in the beginning and 395.3MB in the end (delta: 99.6MB). Free memory was 240.4MB in the beginning and 304.4MB in the end (delta: -64.1MB). Peak memory consumption was 35.9MB. Max. memory is 8.0GB. [2023-04-02 04:15:59,637 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:15:59,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.81ms. Allocated memory is still 295.7MB. Free memory was 240.0MB in the beginning and 222.0MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:15:59,638 INFO L158 Benchmark]: Boogie Preprocessor took 66.30ms. Allocated memory is still 295.7MB. Free memory was 222.0MB in the beginning and 218.7MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:15:59,638 INFO L158 Benchmark]: RCFGBuilder took 751.84ms. Allocated memory is still 295.7MB. Free memory was 218.7MB in the beginning and 237.0MB in the end (delta: -18.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-04-02 04:15:59,638 INFO L158 Benchmark]: TraceAbstraction took 2576.55ms. Allocated memory was 295.7MB in the beginning and 395.3MB in the end (delta: 99.6MB). Free memory was 236.0MB in the beginning and 304.4MB in the end (delta: -68.4MB). Peak memory consumption was 30.7MB. Max. memory is 8.0GB. [2023-04-02 04:15:59,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 344.81ms. Allocated memory is still 295.7MB. Free memory was 240.0MB in the beginning and 222.0MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.30ms. Allocated memory is still 295.7MB. Free memory was 222.0MB in the beginning and 218.7MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 751.84ms. Allocated memory is still 295.7MB. Free memory was 218.7MB in the beginning and 237.0MB in the end (delta: -18.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2576.55ms. Allocated memory was 295.7MB in the beginning and 395.3MB in the end (delta: 99.6MB). Free memory was 236.0MB in the beginning and 304.4MB in the end (delta: -68.4MB). Peak memory consumption was 30.7MB. 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: 900]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] 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] [L873] int retValue_acc ; [L874] 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] [L878] 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] [L879] 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] [L880] 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] [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] 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] [L880] 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] [L880] tmp = valid_product() [L882] 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] [L884] 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] [L885] 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] [L867] 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] [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] 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] [L104] 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] [L106] 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] [L112] tmp = __VERIFIER_nondet_int() [L114] 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] [L116] 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] [L334] COND TRUE waterLevel < 2 [L335] 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] [L116] 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] [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\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=0, waterLevel=2] [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND FALSE !(\read(tmp___2)) [L140] tmp___1 = __VERIFIER_nondet_int() [L142] COND FALSE !(\read(tmp___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, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L151] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L190] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L67] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L67] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L71] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L71] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L77] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L900] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 555 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 265 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1439 IncrementalHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 265 mSolverCounterUnsat, 61 mSDtfsCounter, 1439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 146 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 04:15:59,659 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...