/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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:16:02,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:16:02,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:16:02,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:16:02,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:16:02,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:16:02,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:16:02,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:16:02,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:16:02,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:16:02,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:16:02,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:16:02,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:16:02,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:16:02,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:16:02,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:16:02,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:16:02,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:16:02,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:16:03,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:16:03,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:16:03,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:16:03,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:16:03,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:16:03,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:16:03,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:16:03,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:16:03,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:16:03,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:16:03,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:16:03,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:16:03,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:16:03,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:16:03,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:16:03,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:16:03,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:16:03,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:16:03,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:16:03,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:16:03,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:16:03,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:16:03,018 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 04:16:03,041 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:16:03,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:16:03,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:16:03,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:16:03,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:16:03,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:16:03,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:16:03,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:16:03,043 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:16:03,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:16:03,044 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:16:03,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:16:03,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:16:03,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:16:03,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:03,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:16:03,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:16:03,047 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:16:03,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:16:03,047 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:16:03,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:16:03,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:16:03,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:16:03,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:16:03,233 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:16:03,233 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:16:03,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2023-04-02 04:16:04,257 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:16:04,530 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:16:04,530 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2023-04-02 04:16:04,542 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d089ff9/0dc97e4b38fc46188430a97fb2dadde0/FLAG26aeb7c67 [2023-04-02 04:16:04,867 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d089ff9/0dc97e4b38fc46188430a97fb2dadde0 [2023-04-02 04:16:04,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:16:04,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:16:04,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:04,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:16:04,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:16:04,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:04" (1/1) ... [2023-04-02 04:16:04,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229b4760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:04, skipping insertion in model container [2023-04-02 04:16:04,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:04" (1/1) ... [2023-04-02 04:16:04,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:16:04,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:16:05,012 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_product16.cil.c[1605,1618] [2023-04-02 04:16:05,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:05,102 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:16:05,110 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_product16.cil.c[1605,1618] [2023-04-02 04:16:05,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:05,169 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:16:05,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05 WrapperNode [2023-04-02 04:16:05,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:05,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:16:05,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:16:05,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:16:05,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,212 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:16:05,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:16:05,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:16:05,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:16:05,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (1/1) ... [2023-04-02 04:16:05,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:16:05,256 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 04:16:05,270 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 04:16:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:16:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:16:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:16:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:16:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:16:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:16:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:16:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:16:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:16:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:16:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:16:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:16:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:16:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:16:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:16:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:16:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:16:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:16:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:16:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:16:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:16:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:16:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:16:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:16:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:16:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:16:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:16:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:16:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:16:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:16:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:16:05,410 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:16:05,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:16:05,808 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:16:05,814 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:16:05,814 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:16:05,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:05 BoogieIcfgContainer [2023-04-02 04:16:05,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:16:05,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:16:05,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:16:05,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:16:05,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:16:04" (1/3) ... [2023-04-02 04:16:05,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38292925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:05, skipping insertion in model container [2023-04-02 04:16:05,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:05" (2/3) ... [2023-04-02 04:16:05,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38292925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:05, skipping insertion in model container [2023-04-02 04:16:05,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:05" (3/3) ... [2023-04-02 04:16:05,823 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2023-04-02 04:16:05,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:16:05,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:16:05,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:16:05,888 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;@3579e7be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:16:05,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:16:05,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 90 states have (on average 1.3) internal successors, (117), 104 states have internal predecessors, (117), 45 states have call successors, (45), 27 states have call predecessors, (45), 27 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-02 04:16:05,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:16:05,898 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:05,899 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 04:16:05,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:05,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:05,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1385035205, now seen corresponding path program 1 times [2023-04-02 04:16:05,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:05,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607994100] [2023-04-02 04:16:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:05,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:16:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,160 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 04:16:06,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607994100] [2023-04-02 04:16:06,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607994100] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:06,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:06,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:16:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408654592] [2023-04-02 04:16:06,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:06,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:16:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:16:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:06,212 INFO L87 Difference]: Start difference. First operand has 166 states, 90 states have (on average 1.3) internal successors, (117), 104 states have internal predecessors, (117), 45 states have call successors, (45), 27 states have call predecessors, (45), 27 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) 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 04:16:06,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:06,612 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2023-04-02 04:16:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:16:06,614 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 04:16:06,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:06,624 INFO L225 Difference]: With dead ends: 272 [2023-04-02 04:16:06,624 INFO L226 Difference]: Without dead ends: 148 [2023-04-02 04:16:06,628 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 04:16:06,633 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:06,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 23 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:16:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-04-02 04:16:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2023-04-02 04:16:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 76 states have internal predecessors, (82), 29 states have call successors, (29), 24 states have call predecessors, (29), 19 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:16:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2023-04-02 04:16:06,695 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2023-04-02 04:16:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:06,696 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2023-04-02 04:16:06,696 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 04:16:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2023-04-02 04:16:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:16:06,703 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:06,703 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 04:16:06,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:16:06,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:06,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1944561897, now seen corresponding path program 1 times [2023-04-02 04:16:06,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:06,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97642337] [2023-04-02 04:16:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:16:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:16:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:06,853 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 04:16:06,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:06,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97642337] [2023-04-02 04:16:06,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97642337] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:06,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:06,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:16:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550794289] [2023-04-02 04:16:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:06,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:16:06,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:16:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:16:06,856 INFO L87 Difference]: Start difference. First operand 115 states and 135 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 04:16:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:07,144 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2023-04-02 04:16:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:16:07,144 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 04:16:07,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:07,150 INFO L225 Difference]: With dead ends: 195 [2023-04-02 04:16:07,151 INFO L226 Difference]: Without dead ends: 132 [2023-04-02 04:16:07,158 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 04:16:07,159 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 91 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:07,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 31 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:16:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-04-02 04:16:07,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2023-04-02 04:16:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.25) internal successors, (75), 70 states have internal predecessors, (75), 26 states have call successors, (26), 23 states have call predecessors, (26), 19 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-02 04:16:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2023-04-02 04:16:07,198 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2023-04-02 04:16:07,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:07,199 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2023-04-02 04:16:07,199 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 04:16:07,199 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2023-04-02 04:16:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-02 04:16:07,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:07,203 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 04:16:07,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:16:07,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:07,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1872416791, now seen corresponding path program 1 times [2023-04-02 04:16:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:07,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312298963] [2023-04-02 04:16:07,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:07,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:16:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:07,498 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 04:16:07,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:07,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312298963] [2023-04-02 04:16:07,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312298963] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:07,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:07,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:07,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099698997] [2023-04-02 04:16:07,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:07,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:07,502 INFO L87 Difference]: Start difference. First operand 106 states and 123 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 04:16:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:08,252 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2023-04-02 04:16:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:16:08,252 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 04:16:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:08,254 INFO L225 Difference]: With dead ends: 375 [2023-04-02 04:16:08,254 INFO L226 Difference]: Without dead ends: 293 [2023-04-02 04:16:08,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:16:08,256 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 319 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:08,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 81 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:16:08,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-04-02 04:16:08,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2023-04-02 04:16:08,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 139 states have (on average 1.2949640287769784) internal successors, (180), 158 states have internal predecessors, (180), 52 states have call successors, (52), 46 states have call predecessors, (52), 40 states have return successors, (49), 40 states have call predecessors, (49), 48 states have call successors, (49) [2023-04-02 04:16:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2023-04-02 04:16:08,293 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2023-04-02 04:16:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:08,294 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2023-04-02 04:16:08,294 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 04:16:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2023-04-02 04:16:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:16:08,295 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:08,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:08,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:16:08,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:08,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1720359680, now seen corresponding path program 1 times [2023-04-02 04:16:08,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:08,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154935774] [2023-04-02 04:16:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:08,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:16:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:16:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:16:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:08,459 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 04:16:08,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:08,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154935774] [2023-04-02 04:16:08,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154935774] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:08,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:08,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:08,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609804420] [2023-04-02 04:16:08,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:08,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:08,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:08,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:08,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:08,462 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:16:09,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:09,049 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2023-04-02 04:16:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:16:09,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2023-04-02 04:16:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:09,052 INFO L225 Difference]: With dead ends: 711 [2023-04-02 04:16:09,052 INFO L226 Difference]: Without dead ends: 503 [2023-04-02 04:16:09,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:16:09,054 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 193 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:09,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 77 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:16:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-04-02 04:16:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2023-04-02 04:16:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 262 states have (on average 1.2709923664122138) internal successors, (333), 299 states have internal predecessors, (333), 97 states have call successors, (97), 80 states have call predecessors, (97), 77 states have return successors, (113), 76 states have call predecessors, (113), 93 states have call successors, (113) [2023-04-02 04:16:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2023-04-02 04:16:09,100 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2023-04-02 04:16:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:09,100 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2023-04-02 04:16:09,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:16:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2023-04-02 04:16:09,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:16:09,102 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:09,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:09,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:16:09,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:09,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1597739514, now seen corresponding path program 1 times [2023-04-02 04:16:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:09,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031403416] [2023-04-02 04:16:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:09,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 04:16:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 04:16:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:16:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 04:16:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:09,200 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 04:16:09,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:09,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031403416] [2023-04-02 04:16:09,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031403416] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:09,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:09,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:16:09,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038841101] [2023-04-02 04:16:09,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:09,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:16:09,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:09,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:16:09,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:16:09,202 INFO L87 Difference]: Start difference. First operand 437 states and 543 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:16:09,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:09,431 INFO L93 Difference]: Finished difference Result 786 states and 1027 transitions. [2023-04-02 04:16:09,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:16:09,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 67 [2023-04-02 04:16:09,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:09,433 INFO L225 Difference]: With dead ends: 786 [2023-04-02 04:16:09,433 INFO L226 Difference]: Without dead ends: 373 [2023-04-02 04:16:09,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:16:09,435 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 203 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:09,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 40 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:16:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-04-02 04:16:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 323. [2023-04-02 04:16:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 206 states have (on average 1.2281553398058251) internal successors, (253), 223 states have internal predecessors, (253), 60 states have call successors, (60), 60 states have call predecessors, (60), 56 states have return successors, (61), 53 states have call predecessors, (61), 56 states have call successors, (61) [2023-04-02 04:16:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 374 transitions. [2023-04-02 04:16:09,484 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 374 transitions. Word has length 67 [2023-04-02 04:16:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:09,484 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 374 transitions. [2023-04-02 04:16:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:16:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 374 transitions. [2023-04-02 04:16:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:16:09,485 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:09,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:09,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:16:09,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:09,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash -560252890, now seen corresponding path program 1 times [2023-04-02 04:16:09,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111921308] [2023-04-02 04:16:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:09,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:16:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:09,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:16:09,522 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:16:09,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:16:09,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:16:09,526 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-02 04:16:09,528 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:16:09,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:16:09 BoogieIcfgContainer [2023-04-02 04:16:09,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:16:09,558 INFO L158 Benchmark]: Toolchain (without parser) took 4687.61ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 218.2MB in the beginning and 254.6MB in the end (delta: -36.4MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2023-04-02 04:16:09,558 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:16:09,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.12ms. Allocated memory is still 262.1MB. Free memory was 218.2MB in the beginning and 199.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:16:09,559 INFO L158 Benchmark]: Boogie Preprocessor took 56.76ms. Allocated memory is still 262.1MB. Free memory was 199.9MB in the beginning and 196.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:16:09,559 INFO L158 Benchmark]: RCFGBuilder took 587.21ms. Allocated memory is still 262.1MB. Free memory was 196.7MB in the beginning and 222.0MB in the end (delta: -25.3MB). Peak memory consumption was 42.9MB. Max. memory is 8.0GB. [2023-04-02 04:16:09,559 INFO L158 Benchmark]: TraceAbstraction took 3740.44ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 221.5MB in the beginning and 254.6MB in the end (delta: -33.1MB). Peak memory consumption was 19.3MB. Max. memory is 8.0GB. [2023-04-02 04:16:09,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 212.9MB. Free memory is still 158.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 299.12ms. Allocated memory is still 262.1MB. Free memory was 218.2MB in the beginning and 199.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.76ms. Allocated memory is still 262.1MB. Free memory was 199.9MB in the beginning and 196.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 587.21ms. Allocated memory is still 262.1MB. Free memory was 196.7MB in the beginning and 222.0MB in the end (delta: -25.3MB). Peak memory consumption was 42.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3740.44ms. Allocated memory was 262.1MB in the beginning and 314.6MB in the end (delta: 52.4MB). Free memory was 221.5MB in the beginning and 254.6MB in the end (delta: -33.1MB). Peak memory consumption was 19.3MB. 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L332] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] int retValue_acc ; [L141] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L145] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L146] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L147] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L806] int retValue_acc ; [L809] retValue_acc = 1 [L810] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L147] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L151] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L152] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L541] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L543] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L549] tmp = __VERIFIER_nondet_int() [L551] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L553] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L834] COND TRUE waterLevel < 2 [L835] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L577] tmp___1 = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L581] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L760] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L767] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L581] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L588] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L897] int tmp ; [L898] int tmp___0 ; [L899] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L903] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L903] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L903] tmp = isMethaneLevelCritical() [L905] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L909] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L909] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L909] tmp___0 = getWaterLevel() [L911] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L913] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L712] int retValue_acc ; [L715] retValue_acc = pumpRunning [L716] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L913] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L913] tmp___1 = isPumpRunning() [L915] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L919] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 944 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 887 mSDsluCounter, 252 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 495 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2039 IncrementalHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 495 mSolverCounterUnsat, 64 mSDtfsCounter, 2039 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, InterpolantAutomatonStates: 37, 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, 236 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 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 04:16:09,577 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...