/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_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:15:51,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:15:51,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:15:51,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:15:51,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:15:51,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:15:51,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:15:51,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:15:51,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:15:51,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:15:51,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:15:51,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:15:51,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:15:51,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:15:51,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:15:51,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:15:51,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:15:51,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:15:51,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:15:51,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:15:51,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:15:51,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:15:51,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:15:51,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:15:51,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:15:51,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:15:51,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:15:51,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:15:51,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:15:51,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:15:51,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:15:51,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:15:51,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:15:51,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:15:51,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:15:51,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:15:51,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:15:51,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:15:51,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:15:51,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:15:51,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:15:51,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:15:51,939 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:15:51,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:15:51,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:15:51,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:15:51,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:15:51,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:15:51,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:15:51,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:15:51,941 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:15:51,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:15:51,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:15:51,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:15:51,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:15:51,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:15:51,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:15:51,947 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:15:51,947 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:15:52,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:15:52,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:15:52,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:15:52,223 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:15:52,223 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:15:52,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2023-04-02 04:15:53,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:15:53,740 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:15:53,741 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product10.cil.c [2023-04-02 04:15:53,751 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e7263294/7d862324321245c7bc78f16ad9df3f71/FLAG5f60e27f0 [2023-04-02 04:15:53,763 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e7263294/7d862324321245c7bc78f16ad9df3f71 [2023-04-02 04:15:53,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:15:53,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:15:53,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:15:53,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:15:53,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:15:53,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:15:53" (1/1) ... [2023-04-02 04:15:53,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dc5b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:53, skipping insertion in model container [2023-04-02 04:15:53,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:15:53" (1/1) ... [2023-04-02 04:15:53,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:15:53,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:15:53,941 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_product10.cil.c[3343,3356] [2023-04-02 04:15:54,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:15:54,068 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:15:54,105 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_product10.cil.c[3343,3356] [2023-04-02 04:15:54,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:15:54,169 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:15:54,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54 WrapperNode [2023-04-02 04:15:54,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:15:54,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:15:54,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:15:54,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:15:54,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:15:54,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:15:54,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:15:54,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:15:54,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (1/1) ... [2023-04-02 04:15:54,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:15:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:15:54,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:15:54,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:15:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:15:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:15:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:15:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:15:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:15:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:15:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:15:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:15:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:15:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:15:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:15:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:15:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:15:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:15:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:15:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:15:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:15:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:15:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:15:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:15:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:15:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:15:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:15:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:15:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:15:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:15:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:15:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:15:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:15:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:15:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:15:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:15:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:15:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:15:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:15:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:15:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:15:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:15:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:15:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:15:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-02 04:15:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:15:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:15:54,506 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:15:54,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:15:54,997 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:15:55,007 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:15:55,008 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:15:55,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:15:55 BoogieIcfgContainer [2023-04-02 04:15:55,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:15:55,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:15:55,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:15:55,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:15:55,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:15:53" (1/3) ... [2023-04-02 04:15:55,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2056d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:15:55, skipping insertion in model container [2023-04-02 04:15:55,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:15:54" (2/3) ... [2023-04-02 04:15:55,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2056d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:15:55, skipping insertion in model container [2023-04-02 04:15:55,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:15:55" (3/3) ... [2023-04-02 04:15:55,020 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2023-04-02 04:15:55,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:15:55,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:15:55,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:15:55,099 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;@6a549bc1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:15:55,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:15:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 89 states have internal predecessors, (103), 38 states have call successors, (38), 23 states have call predecessors, (38), 23 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-04-02 04:15:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:15:55,114 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:55,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:55,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:55,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash 461704966, now seen corresponding path program 1 times [2023-04-02 04:15:55,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:55,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038437494] [2023-04-02 04:15:55,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:55,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:15:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:15:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:15:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:55,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:15:55,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:55,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038437494] [2023-04-02 04:15:55,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038437494] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:55,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:55,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:15:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692958119] [2023-04-02 04:15:55,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:55,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:15:55,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:15:55,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:15:55,529 INFO L87 Difference]: Start difference. First operand has 145 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 89 states have internal predecessors, (103), 38 states have call successors, (38), 23 states have call predecessors, (38), 23 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:55,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:55,934 INFO L93 Difference]: Finished difference Result 220 states and 294 transitions. [2023-04-02 04:15:55,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:15:55,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:15:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:55,947 INFO L225 Difference]: With dead ends: 220 [2023-04-02 04:15:55,947 INFO L226 Difference]: Without dead ends: 120 [2023-04-02 04:15:55,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:15:55,958 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 68 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:55,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 16 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:15:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-04-02 04:15:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2023-04-02 04:15:56,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 59 states have internal predecessors, (66), 22 states have call successors, (22), 20 states have call predecessors, (22), 15 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-04-02 04:15:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2023-04-02 04:15:56,041 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 52 [2023-04-02 04:15:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:56,042 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2023-04-02 04:15:56,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2023-04-02 04:15:56,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:15:56,045 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:56,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:56,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:15:56,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:56,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1515988948, now seen corresponding path program 1 times [2023-04-02 04:15:56,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:56,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211633968] [2023-04-02 04:15:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:15:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:15:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:15:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:15:56,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:56,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211633968] [2023-04-02 04:15:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211633968] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:56,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:56,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:15:56,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722424199] [2023-04-02 04:15:56,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:15:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:15:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:15:56,192 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:56,442 INFO L93 Difference]: Finished difference Result 149 states and 181 transitions. [2023-04-02 04:15:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:15:56,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:15:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:56,445 INFO L225 Difference]: With dead ends: 149 [2023-04-02 04:15:56,445 INFO L226 Difference]: Without dead ends: 104 [2023-04-02 04:15:56,446 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 04:15:56,447 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 78 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:56,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 21 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:15:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-04-02 04:15:56,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2023-04-02 04:15:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 53 states have internal predecessors, (59), 19 states have call successors, (19), 19 states have call predecessors, (19), 15 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-04-02 04:15:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-04-02 04:15:56,479 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 53 [2023-04-02 04:15:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:56,479 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-04-02 04:15:56,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:15:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2023-04-02 04:15:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:15:56,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:56,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:56,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:15:56,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:56,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1970364841, now seen corresponding path program 1 times [2023-04-02 04:15:56,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:56,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208187522] [2023-04-02 04:15:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:56,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:15:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:15:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:15:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:15:56,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:56,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208187522] [2023-04-02 04:15:56,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208187522] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:56,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:15:56,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399952867] [2023-04-02 04:15:56,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:56,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:15:56,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:15:56,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:15:56,793 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:15:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:57,211 INFO L93 Difference]: Finished difference Result 162 states and 199 transitions. [2023-04-02 04:15:57,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:15:57,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 58 [2023-04-02 04:15:57,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:57,213 INFO L225 Difference]: With dead ends: 162 [2023-04-02 04:15:57,214 INFO L226 Difference]: Without dead ends: 104 [2023-04-02 04:15:57,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:15:57,215 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 183 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:57,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 24 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:15:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-04-02 04:15:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 82. [2023-04-02 04:15:57,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 52 states have internal predecessors, (58), 19 states have call successors, (19), 19 states have call predecessors, (19), 15 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-04-02 04:15:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2023-04-02 04:15:57,236 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 58 [2023-04-02 04:15:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:57,236 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2023-04-02 04:15:57,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:15:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2023-04-02 04:15:57,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 04:15:57,237 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:57,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:57,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:15:57,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:57,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:57,238 INFO L85 PathProgramCache]: Analyzing trace with hash -487875488, now seen corresponding path program 1 times [2023-04-02 04:15:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:57,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567699462] [2023-04-02 04:15:57,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:57,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:15:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:15:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:15:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:15:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:15:57,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:57,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567699462] [2023-04-02 04:15:57,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567699462] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:57,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:57,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:15:57,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453950538] [2023-04-02 04:15:57,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:57,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:15:57,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:15:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:15:57,447 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:15:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:57,901 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2023-04-02 04:15:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:15:57,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 61 [2023-04-02 04:15:57,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:57,908 INFO L225 Difference]: With dead ends: 209 [2023-04-02 04:15:57,909 INFO L226 Difference]: Without dead ends: 151 [2023-04-02 04:15:57,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:15:57,918 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:57,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 63 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:15:57,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-04-02 04:15:57,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2023-04-02 04:15:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 80 states have (on average 1.225) internal successors, (98), 89 states have internal predecessors, (98), 30 states have call successors, (30), 28 states have call predecessors, (30), 25 states have return successors, (30), 25 states have call predecessors, (30), 26 states have call successors, (30) [2023-04-02 04:15:57,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2023-04-02 04:15:57,953 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 61 [2023-04-02 04:15:57,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:57,954 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2023-04-02 04:15:57,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:15:57,954 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2023-04-02 04:15:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:15:57,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:57,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:57,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:15:57,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:57,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash -718001478, now seen corresponding path program 1 times [2023-04-02 04:15:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:57,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572586412] [2023-04-02 04:15:57,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:15:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:15:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:15:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:15:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:15:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 04:15:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:15:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:15:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:15:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 04:15:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:15:58,039 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 04:15:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:15:58,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572586412] [2023-04-02 04:15:58,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572586412] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:15:58,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:15:58,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:15:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960744642] [2023-04-02 04:15:58,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:15:58,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:15:58,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:15:58,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:15:58,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:15:58,044 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 5 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 04:15:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:15:58,248 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2023-04-02 04:15:58,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 04:15:58,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 5 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 65 [2023-04-02 04:15:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:15:58,252 INFO L225 Difference]: With dead ends: 205 [2023-04-02 04:15:58,252 INFO L226 Difference]: Without dead ends: 136 [2023-04-02 04:15:58,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:15:58,257 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 112 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:15:58,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 24 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 04:15:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-04-02 04:15:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 123. [2023-04-02 04:15:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 81 states have internal predecessors, (89), 26 states have call successors, (26), 26 states have call predecessors, (26), 22 states have return successors, (23), 21 states have call predecessors, (23), 22 states have call successors, (23) [2023-04-02 04:15:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2023-04-02 04:15:58,295 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 65 [2023-04-02 04:15:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:15:58,295 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2023-04-02 04:15:58,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 5 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 04:15:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2023-04-02 04:15:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:15:58,296 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:15:58,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:15:58,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:15:58,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:15:58,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:15:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1419086298, now seen corresponding path program 1 times [2023-04-02 04:15:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:15:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582530088] [2023-04-02 04:15:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:15:58,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:15:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:15:58,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:15:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:15:58,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:15:58,346 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:15:58,347 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:15:58,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:15:58,351 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-02 04:15:58,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:15:58,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:15:58 BoogieIcfgContainer [2023-04-02 04:15:58,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:15:58,389 INFO L158 Benchmark]: Toolchain (without parser) took 4622.93ms. Allocated memory is still 351.3MB. Free memory was 295.5MB in the beginning and 203.8MB in the end (delta: 91.7MB). Peak memory consumption was 92.3MB. Max. memory is 8.0GB. [2023-04-02 04:15:58,390 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 230.7MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:15:58,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.91ms. Allocated memory is still 351.3MB. Free memory was 295.5MB in the beginning and 277.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:15:58,390 INFO L158 Benchmark]: Boogie Preprocessor took 58.07ms. Allocated memory is still 351.3MB. Free memory was 277.2MB in the beginning and 274.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:15:58,390 INFO L158 Benchmark]: RCFGBuilder took 783.14ms. Allocated memory is still 351.3MB. Free memory was 274.0MB in the beginning and 236.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-04-02 04:15:58,391 INFO L158 Benchmark]: TraceAbstraction took 3374.92ms. Allocated memory is still 351.3MB. Free memory was 235.2MB in the beginning and 203.8MB in the end (delta: 31.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-04-02 04:15:58,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 230.7MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 401.91ms. Allocated memory is still 351.3MB. Free memory was 295.5MB in the beginning and 277.2MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.07ms. Allocated memory is still 351.3MB. Free memory was 277.2MB in the beginning and 274.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 783.14ms. Allocated memory is still 351.3MB. Free memory was 274.0MB in the beginning and 236.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3374.92ms. Allocated memory is still 351.3MB. Free memory was 235.2MB in the beginning and 203.8MB in the end (delta: 31.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 178]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L791] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] int retValue_acc ; [L865] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L871] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L871] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L871] tmp = valid_product() [L873] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L875] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L876] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L858] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] int splverifierCounter ; [L554] int tmp ; [L555] int tmp___0 ; [L556] int tmp___1 ; [L557] int tmp___2 ; [L560] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L562] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L564] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L570] tmp = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L574] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] COND TRUE waterLevel < 2 [L113] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L580] tmp___0 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=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] [L590] tmp___2 = __VERIFIER_nondet_int() [L592] COND FALSE !(\read(tmp___2)) [L598] tmp___1 = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=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] [L607] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L640] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L758] int tmp ; [L759] int tmp___0 ; [L760] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L764] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] tmp = isMethaneLevelCritical() [L766] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L770] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L770] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L770] tmp___0 = getWaterLevel() [L772] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L774] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L774] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L774] tmp___1 = isPumpRunning() [L776] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L780] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L178] reach_error() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 583 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 148 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 279 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1313 IncrementalHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 279 mSolverCounterUnsat, 49 mSDtfsCounter, 1313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 101 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 623 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 04:15:58,414 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...