/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:00:53,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:00:53,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:00:53,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:00:53,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:00:53,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:00:53,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:00:53,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:00:53,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:00:53,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:00:53,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:00:53,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:00:53,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:00:53,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:00:53,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:00:53,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:00:53,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:00:53,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:00:53,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:00:53,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:00:53,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:00:53,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:00:53,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:00:53,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:00:53,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:00:53,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:00:53,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:00:53,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:00:53,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:00:53,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:00:53,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:00:53,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:00:53,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:00:53,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:00:53,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:00:53,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:00:53,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:00:53,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:00:53,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:00:53,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:00:53,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:00:53,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:00:53,702 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:00:53,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:00:53,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:00:53,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:00:53,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:00:53,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:00:53,704 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:00:53,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:00:53,704 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:00:53,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:00:53,705 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:00:53,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:00:53,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:00:53,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:00:53,706 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:00:53,706 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:00:53,706 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:00:53,706 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:00:53,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:00:53,707 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:00:53,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:00:53,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:00:53,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:00:53,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:00:53,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:00:53,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:00:53,721 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:00:53,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:00:53,721 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:00:53,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:00:53,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:53,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:00:53,722 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:00:53,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:00:53,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:00:53,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:00:53,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:00:53,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:00:53,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:00:53,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:00:53,981 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:00:53,982 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:00:53,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2023-04-01 12:00:55,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:00:56,026 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:00:56,027 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2023-04-01 12:00:56,039 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ce5c32d/1ea5038b9cfe4462bd45b970fa201f23/FLAG3c4d1e5cf [2023-04-01 12:00:56,054 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ce5c32d/1ea5038b9cfe4462bd45b970fa201f23 [2023-04-01 12:00:56,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:00:56,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:00:56,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:56,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:00:56,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:00:56,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31284e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56, skipping insertion in model container [2023-04-01 12:00:56,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:00:56,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:00:56,334 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2023-04-01 12:00:56,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:56,447 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:00:56,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c[6162,6175] [2023-04-01 12:00:56,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:56,556 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:00:56,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56 WrapperNode [2023-04-01 12:00:56,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:56,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:00:56,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:00:56,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:00:56,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:00:56,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:00:56,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:00:56,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:00:56,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (1/1) ... [2023-04-01 12:00:56,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:00:56,705 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) [2023-04-01 12:00:56,729 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 [2023-04-01 12:00:56,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:00:56,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:00:56,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:56,777 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:00:56,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:00:56,788 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 12:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:00:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:00:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:00:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:00:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:00:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:00:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:00:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 12:00:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 12:00:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:00:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:00:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:00:56,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:00:56,801 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:00:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:00:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:00:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:00:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:00:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:00:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:00:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:00:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:00:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:00:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:00:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:00:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:00:56,962 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:00:56,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:00:57,717 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:00:57,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:00:57,818 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:00:57,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:57 BoogieIcfgContainer [2023-04-01 12:00:57,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:00:57,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:00:57,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:00:57,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:00:57,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:00:56" (1/3) ... [2023-04-01 12:00:57,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0b21f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:57, skipping insertion in model container [2023-04-01 12:00:57,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:56" (2/3) ... [2023-04-01 12:00:57,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0b21f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:57, skipping insertion in model container [2023-04-01 12:00:57,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:57" (3/3) ... [2023-04-01 12:00:57,830 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2023-04-01 12:00:57,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:00:57,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:00:57,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:00:57,944 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=FINITE_AUTOMATA, 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;@5b898902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:00:57,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:00:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 84 states have internal predecessors, (88), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-01 12:00:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 12:00:57,967 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:57,968 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] [2023-04-01 12:00:57,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:57,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:57,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2050334747, now seen corresponding path program 1 times [2023-04-01 12:00:57,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:57,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334604115] [2023-04-01 12:00:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:58,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:58,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:58,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:58,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334604115] [2023-04-01 12:00:58,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334604115] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:58,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:00:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819556854] [2023-04-01 12:00:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:58,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:00:58,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:58,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:00:58,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:00:58,323 INFO L87 Difference]: Start difference. First operand has 151 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 84 states have internal predecessors, (88), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:58,418 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2023-04-01 12:00:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:00:58,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 12:00:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:58,432 INFO L225 Difference]: With dead ends: 231 [2023-04-01 12:00:58,433 INFO L226 Difference]: Without dead ends: 116 [2023-04-01 12:00:58,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:00:58,441 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:58,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-04-01 12:00:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-04-01 12:00:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 71 states have internal predecessors, (73), 33 states have call successors, (33), 28 states have call predecessors, (33), 23 states have return successors, (28), 23 states have call predecessors, (28), 28 states have call successors, (28) [2023-04-01 12:00:58,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2023-04-01 12:00:58,502 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 42 [2023-04-01 12:00:58,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:58,503 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2023-04-01 12:00:58,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2023-04-01 12:00:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 12:00:58,511 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:58,511 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] [2023-04-01 12:00:58,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:00:58,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:58,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash -236177720, now seen corresponding path program 1 times [2023-04-01 12:00:58,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:58,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870097220] [2023-04-01 12:00:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:58,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:58,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870097220] [2023-04-01 12:00:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870097220] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:58,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:58,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:00:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592395579] [2023-04-01 12:00:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:58,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:00:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:00:58,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:00:58,665 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:58,752 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2023-04-01 12:00:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:00:58,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 12:00:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:58,755 INFO L225 Difference]: With dead ends: 179 [2023-04-01 12:00:58,755 INFO L226 Difference]: Without dead ends: 108 [2023-04-01 12:00:58,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:00:58,757 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 11 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:58,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 197 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-04-01 12:00:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-04-01 12:00:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 66 states have internal predecessors, (67), 30 states have call successors, (30), 27 states have call predecessors, (30), 23 states have return successors, (26), 21 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-01 12:00:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2023-04-01 12:00:58,776 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 43 [2023-04-01 12:00:58,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:58,776 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2023-04-01 12:00:58,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2023-04-01 12:00:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:00:58,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:58,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:58,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:00:58,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:58,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash 96476771, now seen corresponding path program 1 times [2023-04-01 12:00:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421600703] [2023-04-01 12:00:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:59,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421600703] [2023-04-01 12:00:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421600703] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:59,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:59,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:00:59,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243133770] [2023-04-01 12:00:59,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:59,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:00:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:00:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:00:59,175 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 12:00:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:59,750 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2023-04-01 12:00:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:00:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2023-04-01 12:00:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:59,753 INFO L225 Difference]: With dead ends: 325 [2023-04-01 12:00:59,753 INFO L226 Difference]: Without dead ends: 239 [2023-04-01 12:00:59,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 12:00:59,755 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 247 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:59,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 464 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 12:00:59,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-04-01 12:00:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2023-04-01 12:00:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 120 states have (on average 1.275) internal successors, (153), 143 states have internal predecessors, (153), 59 states have call successors, (59), 53 states have call predecessors, (59), 47 states have return successors, (56), 43 states have call predecessors, (56), 55 states have call successors, (56) [2023-04-01 12:00:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 268 transitions. [2023-04-01 12:00:59,790 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 268 transitions. Word has length 47 [2023-04-01 12:00:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:59,790 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 268 transitions. [2023-04-01 12:00:59,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 12:00:59,791 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 268 transitions. [2023-04-01 12:00:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 12:00:59,792 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:59,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:59,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:00:59,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:59,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:59,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1428612621, now seen corresponding path program 1 times [2023-04-01 12:00:59,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:59,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315389106] [2023-04-01 12:00:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:00,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:00,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315389106] [2023-04-01 12:01:00,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315389106] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:00,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:00,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:01:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792780143] [2023-04-01 12:01:00,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:00,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:01:00,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:00,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:01:00,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:01:00,012 INFO L87 Difference]: Start difference. First operand 227 states and 268 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:01:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:00,260 INFO L93 Difference]: Finished difference Result 622 states and 753 transitions. [2023-04-01 12:01:00,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:01:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-04-01 12:01:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:00,272 INFO L225 Difference]: With dead ends: 622 [2023-04-01 12:01:00,272 INFO L226 Difference]: Without dead ends: 417 [2023-04-01 12:01:00,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 12:01:00,281 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 85 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:00,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 453 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 12:01:00,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-04-01 12:01:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 405. [2023-04-01 12:01:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 218 states have (on average 1.275229357798165) internal successors, (278), 260 states have internal predecessors, (278), 103 states have call successors, (103), 91 states have call predecessors, (103), 83 states have return successors, (101), 75 states have call predecessors, (101), 99 states have call successors, (101) [2023-04-01 12:01:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 482 transitions. [2023-04-01 12:01:00,358 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 482 transitions. Word has length 51 [2023-04-01 12:01:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:00,358 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 482 transitions. [2023-04-01 12:01:00,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:01:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 482 transitions. [2023-04-01 12:01:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 12:01:00,362 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:00,362 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] [2023-04-01 12:01:00,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:01:00,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:00,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:00,363 INFO L85 PathProgramCache]: Analyzing trace with hash -227313782, now seen corresponding path program 1 times [2023-04-01 12:01:00,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:00,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971755876] [2023-04-01 12:01:00,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:00,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:00,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971755876] [2023-04-01 12:01:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971755876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:00,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:01:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41013696] [2023-04-01 12:01:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:00,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:01:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:01:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:01:00,560 INFO L87 Difference]: Start difference. First operand 405 states and 482 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:01:01,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:01,064 INFO L93 Difference]: Finished difference Result 1083 states and 1408 transitions. [2023-04-01 12:01:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 12:01:01,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-01 12:01:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:01,071 INFO L225 Difference]: With dead ends: 1083 [2023-04-01 12:01:01,071 INFO L226 Difference]: Without dead ends: 700 [2023-04-01 12:01:01,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-01 12:01:01,076 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:01,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 262 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 12:01:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-04-01 12:01:01,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 611. [2023-04-01 12:01:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 342 states have (on average 1.213450292397661) internal successors, (415), 376 states have internal predecessors, (415), 133 states have call successors, (133), 121 states have call predecessors, (133), 135 states have return successors, (181), 135 states have call predecessors, (181), 129 states have call successors, (181) [2023-04-01 12:01:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 729 transitions. [2023-04-01 12:01:01,158 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 729 transitions. Word has length 54 [2023-04-01 12:01:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:01,158 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 729 transitions. [2023-04-01 12:01:01,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:01:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 729 transitions. [2023-04-01 12:01:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-01 12:01:01,161 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:01,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:01:01,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:01,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2106077138, now seen corresponding path program 1 times [2023-04-01 12:01:01,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:01,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82196573] [2023-04-01 12:01:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:01,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:01,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:01,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82196573] [2023-04-01 12:01:01,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82196573] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:01,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:01,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-01 12:01:01,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144338472] [2023-04-01 12:01:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:01,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 12:01:01,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 12:01:01,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-01 12:01:01,510 INFO L87 Difference]: Start difference. First operand 611 states and 729 transitions. Second operand has 12 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 12:01:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:02,141 INFO L93 Difference]: Finished difference Result 1887 states and 2280 transitions. [2023-04-01 12:01:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 12:01:02,142 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 72 [2023-04-01 12:01:02,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:02,148 INFO L225 Difference]: With dead ends: 1887 [2023-04-01 12:01:02,148 INFO L226 Difference]: Without dead ends: 1298 [2023-04-01 12:01:02,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-01 12:01:02,152 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 272 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:02,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 827 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 12:01:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2023-04-01 12:01:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1265. [2023-04-01 12:01:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 748 states have (on average 1.21524064171123) internal successors, (909), 808 states have internal predecessors, (909), 257 states have call successors, (257), 249 states have call predecessors, (257), 259 states have return successors, (341), 257 states have call predecessors, (341), 253 states have call successors, (341) [2023-04-01 12:01:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1507 transitions. [2023-04-01 12:01:02,286 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1507 transitions. Word has length 72 [2023-04-01 12:01:02,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:02,288 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 1507 transitions. [2023-04-01 12:01:02,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 12:01:02,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1507 transitions. [2023-04-01 12:01:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-04-01 12:01:02,291 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:02,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:02,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 12:01:02,291 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:02,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1657919972, now seen corresponding path program 1 times [2023-04-01 12:01:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:02,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978361701] [2023-04-01 12:01:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:02,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:01:02,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 12:01:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:01:02,439 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 12:01:02,440 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 12:01:02,440 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:01:02,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 12:01:02,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:02,447 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:01:02,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:01:02 BoogieIcfgContainer [2023-04-01 12:01:02,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:01:02,553 INFO L158 Benchmark]: Toolchain (without parser) took 6496.38ms. Allocated memory was 245.4MB in the beginning and 305.1MB in the end (delta: 59.8MB). Free memory was 186.2MB in the beginning and 139.5MB in the end (delta: 46.7MB). Peak memory consumption was 107.8MB. Max. memory is 8.0GB. [2023-04-01 12:01:02,554 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 170.9MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:01:02,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.71ms. Allocated memory is still 245.4MB. Free memory was 186.0MB in the beginning and 167.2MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 12:01:02,554 INFO L158 Benchmark]: Boogie Preprocessor took 91.68ms. Allocated memory is still 245.4MB. Free memory was 167.2MB in the beginning and 163.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-01 12:01:02,554 INFO L158 Benchmark]: RCFGBuilder took 1171.59ms. Allocated memory is still 245.4MB. Free memory was 163.7MB in the beginning and 159.4MB in the end (delta: 4.3MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. [2023-04-01 12:01:02,554 INFO L158 Benchmark]: TraceAbstraction took 4728.41ms. Allocated memory was 245.4MB in the beginning and 305.1MB in the end (delta: 59.8MB). Free memory was 158.9MB in the beginning and 139.5MB in the end (delta: 19.4MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2023-04-01 12:01:02,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 170.9MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 491.71ms. Allocated memory is still 245.4MB. Free memory was 186.0MB in the beginning and 167.2MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 91.68ms. Allocated memory is still 245.4MB. Free memory was 167.2MB in the beginning and 163.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1171.59ms. Allocated memory is still 245.4MB. Free memory was 163.7MB in the beginning and 159.4MB in the end (delta: 4.3MB). Peak memory consumption was 13.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4728.41ms. Allocated memory was 245.4MB in the beginning and 305.1MB in the end (delta: 59.8MB). Free memory was 158.9MB in the beginning and 139.5MB in the end (delta: 19.4MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 393]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L468] int cleanupTimeShifts = 4; [L762] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L544] int retValue_acc ; [L545] 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] [L549] 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] [L550] 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] [L551] 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] [L985] int retValue_acc ; [L988] retValue_acc = 1 [L989] return (retValue_acc); [L551] 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] [L551] tmp = valid_product() [L553] 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] [L555] 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] [L556] 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] [L535] 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] [L400] int splverifierCounter ; [L401] int tmp ; [L402] int tmp___0 ; [L403] int tmp___1 ; [L404] int tmp___2 ; [L407] 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] [L409] 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] [L411] COND TRUE splverifierCounter < 4 [L417] tmp = __VERIFIER_nondet_int() [L419] 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] [L421] 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] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 [L421] 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] [L427] tmp___0 = __VERIFIER_nondet_int() [L429] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L431] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] COND FALSE !(\read(methaneLevelCritical)) [L91] methaneLevelCritical = 1 [L431] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L437] tmp___2 = __VERIFIER_nondet_int() [L439] COND FALSE !(\read(tmp___2)) [L445] tmp___1 = __VERIFIER_nondet_int() [L447] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, tmp___1=0, tmp___2=0, waterLevel=2] [L456] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L185] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L231] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L249] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L205] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L208] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L138] int retValue_acc ; [L141] COND FALSE !(waterLevel < 2) [L145] retValue_acc = 0 [L146] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] tmp = isHighWaterSensorDry() [L336] COND FALSE !(\read(tmp)) [L339] tmp___0 = 1 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp = isHighWaterLevel() [L212] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L214] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] pumpRunning = 1 [L214] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L249] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L185] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L191] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L568] int tmp ; [L569] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L573] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L573] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L573] tmp = isMethaneLevelCritical() [L575] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L577] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L283] int retValue_acc ; [L286] retValue_acc = pumpRunning [L287] return (retValue_acc); [L577] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L577] tmp___0 = isPumpRunning() [L579] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L581] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L393] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 194 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 779 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 756 mSDsluCounter, 2330 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1647 mSDsCounter, 246 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1342 IncrementalHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 246 mSolverCounterUnsat, 683 mSDtfsCounter, 1342 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1265occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 146 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2023-04-01 12:01:02,596 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...