/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:18:09,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:18:09,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:18:09,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:18:09,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:18:09,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:18:09,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:18:09,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:18:09,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:18:09,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:18:09,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:18:09,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:18:09,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:18:09,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:18:09,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:18:09,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:18:09,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:18:09,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:18:09,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:18:09,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:18:09,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:18:09,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:18:09,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:18:09,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:18:09,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:18:09,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:18:09,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:18:09,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:18:09,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:18:09,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:18:09,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:18:09,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:18:09,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:18:09,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:18:09,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:18:09,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:18:09,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:18:09,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:18:09,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:18:09,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:18:09,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:18:09,562 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 04:18:09,596 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:18:09,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:18:09,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:18:09,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:18:09,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:18:09,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:18:09,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:18:09,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:18:09,599 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:18:09,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:18:09,600 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:18:09,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:18:09,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:18:09,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:18:09,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:18:09,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:18:09,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:09,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:18:09,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:18:09,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:18:09,603 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:18:09,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:18:09,603 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:18:09,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:18:09,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:18:09,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:18:09,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:18:09,879 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:18:09,880 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:18:09,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2023-04-02 04:18:11,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:18:11,357 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:18:11,358 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2023-04-02 04:18:11,371 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a703d9f/7805cf4d5f034fcf9e43d52cb2e505c2/FLAG17531d3c8 [2023-04-02 04:18:11,386 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a703d9f/7805cf4d5f034fcf9e43d52cb2e505c2 [2023-04-02 04:18:11,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:18:11,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:18:11,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:11,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:18:11,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:18:11,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4a8b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11, skipping insertion in model container [2023-04-02 04:18:11,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:18:11,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:18:11,587 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_product43.cil.c[2897,2910] [2023-04-02 04:18:11,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:11,708 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:18:11,723 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_product43.cil.c[2897,2910] [2023-04-02 04:18:11,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:18:11,782 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:18:11,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11 WrapperNode [2023-04-02 04:18:11,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:18:11,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:18:11,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:18:11,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:18:11,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:18:11,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:18:11,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:18:11,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:18:11,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (1/1) ... [2023-04-02 04:18:11,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:18:11,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:18:11,912 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 04:18:11,920 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 04:18:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:18:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:18:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:18:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:18:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:18:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:18:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:18:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:18:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:18:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:18:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:18:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:18:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:18:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:18:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:18:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:18:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:18:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:18:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:18:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:18:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-02 04:18:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:18:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:18:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:18:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:18:12,095 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:18:12,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:18:12,670 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:18:12,689 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:18:12,690 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:18:12,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:12 BoogieIcfgContainer [2023-04-02 04:18:12,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:18:12,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:18:12,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:18:12,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:18:12,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:18:11" (1/3) ... [2023-04-02 04:18:12,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e810fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:12, skipping insertion in model container [2023-04-02 04:18:12,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:18:11" (2/3) ... [2023-04-02 04:18:12,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e810fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:18:12, skipping insertion in model container [2023-04-02 04:18:12,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:18:12" (3/3) ... [2023-04-02 04:18:12,707 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2023-04-02 04:18:12,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:18:12,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:18:12,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:18:12,795 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;@226bd2f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:18:12,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:18:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 110 states have internal predecessors, (126), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 04:18:12,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:18:12,810 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:12,810 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 04:18:12,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:12,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:12,815 INFO L85 PathProgramCache]: Analyzing trace with hash 829434147, now seen corresponding path program 1 times [2023-04-02 04:18:12,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253134185] [2023-04-02 04:18:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:12,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:18:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:18:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:18:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:13,168 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 04:18:13,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:13,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253134185] [2023-04-02 04:18:13,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253134185] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:13,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:13,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:18:13,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931365171] [2023-04-02 04:18:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:13,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:18:13,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:18:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:18:13,218 INFO L87 Difference]: Start difference. First operand has 175 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 110 states have internal predecessors, (126), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) 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 04:18:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:13,739 INFO L93 Difference]: Finished difference Result 307 states and 398 transitions. [2023-04-02 04:18:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:18:13,743 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 04:18:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:13,758 INFO L225 Difference]: With dead ends: 307 [2023-04-02 04:18:13,758 INFO L226 Difference]: Without dead ends: 166 [2023-04-02 04:18:13,762 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 04:18:13,765 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 97 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:13,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 22 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:18:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-04-02 04:18:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2023-04-02 04:18:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 88 states have internal predecessors, (97), 31 states have call successors, (31), 27 states have call predecessors, (31), 22 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:18:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2023-04-02 04:18:13,855 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 52 [2023-04-02 04:18:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:13,856 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2023-04-02 04:18:13,856 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 04:18:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2023-04-02 04:18:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:18:13,859 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:13,860 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 04:18:13,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:18:13,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:13,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1815856935, now seen corresponding path program 1 times [2023-04-02 04:18:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837869250] [2023-04-02 04:18:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:13,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:18:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:18:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,039 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 04:18:14,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:14,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837869250] [2023-04-02 04:18:14,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837869250] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:14,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:14,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:18:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8044357] [2023-04-02 04:18:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:14,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:18:14,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:18:14,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:18:14,043 INFO L87 Difference]: Start difference. First operand 132 states and 154 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 04:18:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:14,431 INFO L93 Difference]: Finished difference Result 231 states and 279 transitions. [2023-04-02 04:18:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:18:14,432 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 04:18:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:14,437 INFO L225 Difference]: With dead ends: 231 [2023-04-02 04:18:14,439 INFO L226 Difference]: Without dead ends: 150 [2023-04-02 04:18:14,446 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 04:18:14,447 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 107 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:14,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 30 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:18:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-04-02 04:18:14,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2023-04-02 04:18:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 72 states have (on average 1.25) internal successors, (90), 82 states have internal predecessors, (90), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:18:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2023-04-02 04:18:14,478 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 53 [2023-04-02 04:18:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:14,478 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2023-04-02 04:18:14,479 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 04:18:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2023-04-02 04:18:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:18:14,485 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:14,486 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 04:18:14,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:18:14,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:14,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash 879632821, now seen corresponding path program 1 times [2023-04-02 04:18:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:14,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658646763] [2023-04-02 04:18:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:18:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:18:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:18:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:14,842 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 04:18:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658646763] [2023-04-02 04:18:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658646763] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:14,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:14,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670885241] [2023-04-02 04:18:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:14,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:14,849 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 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 04:18:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:15,652 INFO L93 Difference]: Finished difference Result 427 states and 523 transitions. [2023-04-02 04:18:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:18:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 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 57 [2023-04-02 04:18:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:15,659 INFO L225 Difference]: With dead ends: 427 [2023-04-02 04:18:15,659 INFO L226 Difference]: Without dead ends: 328 [2023-04-02 04:18:15,663 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 04:18:15,667 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 400 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 84 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:18:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-04-02 04:18:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 258. [2023-04-02 04:18:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 177 states have internal predecessors, (204), 53 states have call successors, (53), 49 states have call predecessors, (53), 45 states have return successors, (50), 45 states have call predecessors, (50), 49 states have call successors, (50) [2023-04-02 04:18:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2023-04-02 04:18:15,750 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 57 [2023-04-02 04:18:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:15,750 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2023-04-02 04:18:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 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 04:18:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2023-04-02 04:18:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:18:15,752 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:15,752 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] [2023-04-02 04:18:15,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:18:15,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:15,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1246153058, now seen corresponding path program 1 times [2023-04-02 04:18:15,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:15,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712984493] [2023-04-02 04:18:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:15,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:18:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:18:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:18:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,042 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 04:18:16,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712984493] [2023-04-02 04:18:16,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712984493] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:16,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:16,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:18:16,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807313200] [2023-04-02 04:18:16,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:16,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:18:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:16,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:18:16,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:18:16,046 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 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 04:18:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:16,788 INFO L93 Difference]: Finished difference Result 794 states and 1027 transitions. [2023-04-02 04:18:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:18:16,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 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 63 [2023-04-02 04:18:16,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:16,793 INFO L225 Difference]: With dead ends: 794 [2023-04-02 04:18:16,793 INFO L226 Difference]: Without dead ends: 560 [2023-04-02 04:18:16,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:18:16,795 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 350 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:16,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 74 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:18:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-04-02 04:18:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 493. [2023-04-02 04:18:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 304 states have (on average 1.2532894736842106) internal successors, (381), 339 states have internal predecessors, (381), 99 states have call successors, (99), 86 states have call predecessors, (99), 89 states have return successors, (117), 86 states have call predecessors, (117), 95 states have call successors, (117) [2023-04-02 04:18:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 597 transitions. [2023-04-02 04:18:16,875 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 597 transitions. Word has length 63 [2023-04-02 04:18:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:16,876 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 597 transitions. [2023-04-02 04:18:16,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 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 04:18:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 597 transitions. [2023-04-02 04:18:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:18:16,878 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:16,878 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] [2023-04-02 04:18:16,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:18:16,879 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:16,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1773324472, now seen corresponding path program 1 times [2023-04-02 04:18:16,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:16,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213391440] [2023-04-02 04:18:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:16,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:18:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:18:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:18:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:18:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:18:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:18:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:18:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:18:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:18:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 04:18:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:18:17,029 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 04:18:17,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:18:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213391440] [2023-04-02 04:18:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213391440] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:18:17,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:18:17,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:18:17,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905892661] [2023-04-02 04:18:17,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:18:17,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:18:17,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:18:17,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:18:17,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:18:17,033 INFO L87 Difference]: Start difference. First operand 493 states and 597 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:18:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:18:17,570 INFO L93 Difference]: Finished difference Result 1198 states and 1524 transitions. [2023-04-02 04:18:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:18:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 67 [2023-04-02 04:18:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:18:17,576 INFO L225 Difference]: With dead ends: 1198 [2023-04-02 04:18:17,576 INFO L226 Difference]: Without dead ends: 729 [2023-04-02 04:18:17,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:18:17,579 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 366 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:18:17,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 59 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:18:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-04-02 04:18:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 679. [2023-04-02 04:18:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 426 states have (on average 1.2370892018779343) internal successors, (527), 459 states have internal predecessors, (527), 128 states have call successors, (128), 116 states have call predecessors, (128), 124 states have return successors, (169), 123 states have call predecessors, (169), 124 states have call successors, (169) [2023-04-02 04:18:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 824 transitions. [2023-04-02 04:18:17,697 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 824 transitions. Word has length 67 [2023-04-02 04:18:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:18:17,697 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 824 transitions. [2023-04-02 04:18:17,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:18:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 824 transitions. [2023-04-02 04:18:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:18:17,699 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:18:17,699 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] [2023-04-02 04:18:17,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:18:17,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:18:17,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:18:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash 930330152, now seen corresponding path program 1 times [2023-04-02 04:18:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:18:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971935325] [2023-04-02 04:18:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:18:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:18:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:17,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:18:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:18:17,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:18:17,781 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:18:17,782 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:18:17,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:18:17,787 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-02 04:18:17,790 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:18:17,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:18:17 BoogieIcfgContainer [2023-04-02 04:18:17,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:18:17,857 INFO L158 Benchmark]: Toolchain (without parser) took 6467.14ms. Allocated memory was 200.3MB in the beginning and 334.5MB in the end (delta: 134.2MB). Free memory was 153.1MB in the beginning and 180.5MB in the end (delta: -27.4MB). Peak memory consumption was 107.9MB. Max. memory is 8.0GB. [2023-04-02 04:18:17,857 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:18:17,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.90ms. Allocated memory is still 200.3MB. Free memory was 152.7MB in the beginning and 134.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:18:17,858 INFO L158 Benchmark]: Boogie Preprocessor took 90.08ms. Allocated memory is still 200.3MB. Free memory was 134.2MB in the beginning and 130.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-02 04:18:17,858 INFO L158 Benchmark]: RCFGBuilder took 817.55ms. Allocated memory was 200.3MB in the beginning and 334.5MB in the end (delta: 134.2MB). Free memory was 130.7MB in the beginning and 283.2MB in the end (delta: -152.5MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. [2023-04-02 04:18:17,858 INFO L158 Benchmark]: TraceAbstraction took 5162.48ms. Allocated memory is still 334.5MB. Free memory was 282.7MB in the beginning and 180.5MB in the end (delta: 102.2MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. [2023-04-02 04:18:17,860 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 200.3MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.90ms. Allocated memory is still 200.3MB. Free memory was 152.7MB in the beginning and 134.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.08ms. Allocated memory is still 200.3MB. Free memory was 134.2MB in the beginning and 130.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 817.55ms. Allocated memory was 200.3MB in the beginning and 334.5MB in the end (delta: 134.2MB). Free memory was 130.7MB in the beginning and 283.2MB in the end (delta: -152.5MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5162.48ms. Allocated memory is still 334.5MB. Free memory was 282.7MB in the beginning and 180.5MB in the end (delta: 102.2MB). Peak memory consumption was 102.2MB. 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: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; 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] [L131] int retValue_acc ; [L132] 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] [L136] 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] [L137] 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] [L138] 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] [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] 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] [L138] 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] [L138] tmp = valid_product() [L140] 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] [L142] 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] [L143] 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] [L122] 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] [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] 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] [L802] 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] [L804] 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] [L810] tmp = __VERIFIER_nondet_int() [L812] 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] [L814] 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] [L877] COND TRUE waterLevel < 2 [L878] 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] [L814] 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] [L820] tmp___0 = __VERIFIER_nondet_int() [L822] 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] [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \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=1, tmp___2=0, waterLevel=2] [L840] CALL stopSystem() 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] [L780] COND FALSE !(\read(pumpRunning)) 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] [L787] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L840] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L847] 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=0, waterLevel=2] [L614] 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=0, waterLevel=2] [L621] COND FALSE !(\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=0, waterLevel=2] [L629] 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=0, waterLevel=2] [L167] int tmp ; [L168] int tmp___0 ; [L169] 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=0, waterLevel=2] [L173] 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=0, waterLevel=2] [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] 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=0, waterLevel=2] [L173] 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=0, waterLevel=2] [L173] tmp = isMethaneLevelCritical() [L175] 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=0, tmp=0, waterLevel=2] [L179] 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=0, waterLevel=2] [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] 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=0, waterLevel=2] [L179] 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=0, tmp=0, waterLevel=2] [L179] tmp___0 = getWaterLevel() [L181] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L183] 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=0, waterLevel=2] [L713] int retValue_acc ; [L716] retValue_acc = pumpRunning [L717] 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=0, waterLevel=2] [L183] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L183] tmp___1 = isPumpRunning() [L185] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L189] 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=0, waterLevel=2] [L158] 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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 234 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1390 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1320 mSDsluCounter, 269 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 206 mSDsCounter, 686 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2418 IncrementalHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 686 mSolverCounterUnsat, 63 mSDtfsCounter, 2418 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=679occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 248 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 04:18:17,883 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...