/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 OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:02:08,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:02:08,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:02:08,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:02:08,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:02:08,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:02:08,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:02:08,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:02:08,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:02:08,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:02:08,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:02:08,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:02:08,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:02:08,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:02:08,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:02:08,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:02:08,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:02:08,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:02:08,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:02:08,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:02:08,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:02:08,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:02:08,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:02:08,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:02:08,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:02:08,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:02:08,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:02:08,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:02:08,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:02:08,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:02:08,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:02:08,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:02:08,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:02:08,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:02:08,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:02:08,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:02:08,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:02:08,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:02:08,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:02:08,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:02:08,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:02:08,642 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 [2023-04-03 01:02:08,664 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:02:08,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:02:08,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:02:08,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:02:08,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:02:08,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:02:08,666 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:02:08,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:02:08,666 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:02:08,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:02:08,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:02:08,667 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:02:08,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:02:08,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:02:08,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:02:08,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:02:08,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:02:08,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:02:08,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:02:08,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:02:08,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:02:08,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:02:08,871 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:02:08,871 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:02:08,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2023-04-03 01:02:09,894 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:02:10,252 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:02:10,252 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2023-04-03 01:02:10,259 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54589680f/afde978c211a455fba7cb95ec6dbaa88/FLAGc149a09dd [2023-04-03 01:02:10,268 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54589680f/afde978c211a455fba7cb95ec6dbaa88 [2023-04-03 01:02:10,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:02:10,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:02:10,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:02:10,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:02:10,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:02:10,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9a98fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10, skipping insertion in model container [2023-04-03 01:02:10,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:02:10,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:02:10,546 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2023-04-03 01:02:10,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:02:10,583 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:02:10,645 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2023-04-03 01:02:10,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:02:10,659 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:02:10,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10 WrapperNode [2023-04-03 01:02:10,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:02:10,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:02:10,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:02:10,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:02:10,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:02:10,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:02:10,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:02:10,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:02:10,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (1/1) ... [2023-04-03 01:02:10,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:02:10,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:02:10,728 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) [2023-04-03 01:02:10,730 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 [2023-04-03 01:02:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:02:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:02:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:02:10,761 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:02:10,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:02:10,764 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:02:10,764 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:02:10,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:02:10,766 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:02:10,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:02:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:02:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:02:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:02:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:02:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:02:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-03 01:02:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:02:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:02:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:02:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:02:10,902 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:02:10,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:02:11,301 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:02:11,442 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:02:11,443 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:02:11,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:11 BoogieIcfgContainer [2023-04-03 01:02:11,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:02:11,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:02:11,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:02:11,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:02:11,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:02:10" (1/3) ... [2023-04-03 01:02:11,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dcc52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:11, skipping insertion in model container [2023-04-03 01:02:11,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:02:10" (2/3) ... [2023-04-03 01:02:11,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40dcc52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:02:11, skipping insertion in model container [2023-04-03 01:02:11,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:02:11" (3/3) ... [2023-04-03 01:02:11,466 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2023-04-03 01:02:11,477 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:02:11,477 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:02:11,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:02:11,536 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;@40d6778c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:02:11,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:02:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 58 states have (on average 1.293103448275862) internal successors, (75), 69 states have internal predecessors, (75), 39 states have call successors, (39), 24 states have call predecessors, (39), 24 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-04-03 01:02:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:02:11,545 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:11,546 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] [2023-04-03 01:02:11,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:11,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1906214848, now seen corresponding path program 1 times [2023-04-03 01:02:11,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:11,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834272075] [2023-04-03 01:02:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:11,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:11,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834272075] [2023-04-03 01:02:11,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834272075] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:11,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:11,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:02:11,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525334923] [2023-04-03 01:02:11,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:11,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:02:11,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:11,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:02:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:02:11,744 INFO L87 Difference]: Start difference. First operand has 126 states, 58 states have (on average 1.293103448275862) internal successors, (75), 69 states have internal predecessors, (75), 39 states have call successors, (39), 24 states have call predecessors, (39), 24 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:11,790 INFO L93 Difference]: Finished difference Result 167 states and 204 transitions. [2023-04-03 01:02:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:02:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-03 01:02:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:11,800 INFO L225 Difference]: With dead ends: 167 [2023-04-03 01:02:11,800 INFO L226 Difference]: Without dead ends: 84 [2023-04-03 01:02:11,803 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 [2023-04-03 01:02:11,806 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:11,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:02:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-04-03 01:02:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-04-03 01:02:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 44 states have (on average 1.25) internal successors, (55), 51 states have internal predecessors, (55), 23 states have call successors, (23), 21 states have call predecessors, (23), 16 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-04-03 01:02:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2023-04-03 01:02:11,843 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 47 [2023-04-03 01:02:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:11,844 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2023-04-03 01:02:11,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2023-04-03 01:02:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-03 01:02:11,848 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:11,848 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] [2023-04-03 01:02:11,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:02:11,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:11,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash 995725675, now seen corresponding path program 1 times [2023-04-03 01:02:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648709133] [2023-04-03 01:02:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:11,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:11,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648709133] [2023-04-03 01:02:11,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648709133] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:11,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:11,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:02:11,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676602007] [2023-04-03 01:02:11,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:11,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:02:11,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:11,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:02:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:02:11,991 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:12,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:12,025 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2023-04-03 01:02:12,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:02:12,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-04-03 01:02:12,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:12,027 INFO L225 Difference]: With dead ends: 116 [2023-04-03 01:02:12,027 INFO L226 Difference]: Without dead ends: 76 [2023-04-03 01:02:12,030 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 [2023-04-03 01:02:12,031 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 11 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:12,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 132 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:02:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-04-03 01:02:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-04-03 01:02:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 46 states have internal predecessors, (49), 20 states have call successors, (20), 20 states have call predecessors, (20), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-04-03 01:02:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-04-03 01:02:12,041 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 48 [2023-04-03 01:02:12,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:12,041 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-04-03 01:02:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:02:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-04-03 01:02:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:02:12,042 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:12,042 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] [2023-04-03 01:02:12,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:02:12,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:12,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1856413599, now seen corresponding path program 1 times [2023-04-03 01:02:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:12,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959524908] [2023-04-03 01:02:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:12,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:12,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959524908] [2023-04-03 01:02:12,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959524908] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:12,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:12,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:02:12,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825567023] [2023-04-03 01:02:12,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:12,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:02:12,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:02:12,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:02:12,237 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:02:12,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:12,397 INFO L93 Difference]: Finished difference Result 233 states and 274 transitions. [2023-04-03 01:02:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:02:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-03 01:02:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:12,400 INFO L225 Difference]: With dead ends: 233 [2023-04-03 01:02:12,400 INFO L226 Difference]: Without dead ends: 179 [2023-04-03 01:02:12,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:02:12,401 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 123 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:12,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 339 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:02:12,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-04-03 01:02:12,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2023-04-03 01:02:12,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 90 states have (on average 1.288888888888889) internal successors, (116), 102 states have internal predecessors, (116), 37 states have call successors, (37), 37 states have call predecessors, (37), 33 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-04-03 01:02:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 187 transitions. [2023-04-03 01:02:12,417 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 187 transitions. Word has length 51 [2023-04-03 01:02:12,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:12,418 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 187 transitions. [2023-04-03 01:02:12,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:02:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 187 transitions. [2023-04-03 01:02:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 01:02:12,419 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:12,419 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] [2023-04-03 01:02:12,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:02:12,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:12,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1601915003, now seen corresponding path program 1 times [2023-04-03 01:02:12,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:12,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601552981] [2023-04-03 01:02:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:12,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:12,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:12,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601552981] [2023-04-03 01:02:12,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601552981] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:12,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:12,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:02:12,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614136155] [2023-04-03 01:02:12,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:12,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:02:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:02:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:02:12,535 INFO L87 Difference]: Start difference. First operand 161 states and 187 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:02:12,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:12,626 INFO L93 Difference]: Finished difference Result 421 states and 514 transitions. [2023-04-03 01:02:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:02:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 54 [2023-04-03 01:02:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:12,629 INFO L225 Difference]: With dead ends: 421 [2023-04-03 01:02:12,629 INFO L226 Difference]: Without dead ends: 282 [2023-04-03 01:02:12,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:02:12,631 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:12,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 316 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:02:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-04-03 01:02:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 264. [2023-04-03 01:02:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 155 states have (on average 1.2967741935483872) internal successors, (201), 172 states have internal predecessors, (201), 56 states have call successors, (56), 56 states have call predecessors, (56), 52 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2023-04-03 01:02:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 315 transitions. [2023-04-03 01:02:12,653 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 315 transitions. Word has length 54 [2023-04-03 01:02:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:12,653 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 315 transitions. [2023-04-03 01:02:12,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:02:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 315 transitions. [2023-04-03 01:02:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-03 01:02:12,655 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:12,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:02:12,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:02:12,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:12,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:12,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1362727868, now seen corresponding path program 1 times [2023-04-03 01:02:12,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:12,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821392041] [2023-04-03 01:02:12,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:12,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:12,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:12,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821392041] [2023-04-03 01:02:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821392041] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:12,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:12,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 01:02:12,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147162195] [2023-04-03 01:02:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:12,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 01:02:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:12,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 01:02:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:02:12,795 INFO L87 Difference]: Start difference. First operand 264 states and 315 transitions. Second operand has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-03 01:02:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:13,064 INFO L93 Difference]: Finished difference Result 582 states and 723 transitions. [2023-04-03 01:02:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:02:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 57 [2023-04-03 01:02:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:13,091 INFO L225 Difference]: With dead ends: 582 [2023-04-03 01:02:13,091 INFO L226 Difference]: Without dead ends: 443 [2023-04-03 01:02:13,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-04-03 01:02:13,092 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 169 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:13,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 293 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:02:13,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-04-03 01:02:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 404. [2023-04-03 01:02:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 260 states have internal predecessors, (303), 88 states have call successors, (88), 78 states have call predecessors, (88), 80 states have return successors, (99), 84 states have call predecessors, (99), 84 states have call successors, (99) [2023-04-03 01:02:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 490 transitions. [2023-04-03 01:02:13,143 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 490 transitions. Word has length 57 [2023-04-03 01:02:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:13,143 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 490 transitions. [2023-04-03 01:02:13,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-03 01:02:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 490 transitions. [2023-04-03 01:02:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-03 01:02:13,145 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:13,145 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] [2023-04-03 01:02:13,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:02:13,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:13,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1662739488, now seen corresponding path program 1 times [2023-04-03 01:02:13,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:13,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687957273] [2023-04-03 01:02:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:02:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:02:13,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:02:13,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687957273] [2023-04-03 01:02:13,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687957273] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:02:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:02:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:02:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281691408] [2023-04-03 01:02:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:02:13,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:02:13,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:02:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:02:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:02:13,196 INFO L87 Difference]: Start difference. First operand 404 states and 490 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 01:02:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:02:13,293 INFO L93 Difference]: Finished difference Result 831 states and 1022 transitions. [2023-04-03 01:02:13,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:02:13,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2023-04-03 01:02:13,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:02:13,296 INFO L225 Difference]: With dead ends: 831 [2023-04-03 01:02:13,296 INFO L226 Difference]: Without dead ends: 575 [2023-04-03 01:02:13,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:02:13,297 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 41 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:02:13,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 512 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:02:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-04-03 01:02:13,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 557. [2023-04-03 01:02:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 337 states have (on average 1.281899109792285) internal successors, (432), 364 states have internal predecessors, (432), 111 states have call successors, (111), 111 states have call predecessors, (111), 108 states have return successors, (122), 108 states have call predecessors, (122), 107 states have call successors, (122) [2023-04-03 01:02:13,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 665 transitions. [2023-04-03 01:02:13,326 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 665 transitions. Word has length 60 [2023-04-03 01:02:13,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:02:13,326 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 665 transitions. [2023-04-03 01:02:13,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-03 01:02:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 665 transitions. [2023-04-03 01:02:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-03 01:02:13,328 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:02:13,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:02:13,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:02:13,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:02:13,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:02:13,328 INFO L85 PathProgramCache]: Analyzing trace with hash 964641249, now seen corresponding path program 1 times [2023-04-03 01:02:13,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:02:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847327650] [2023-04-03 01:02:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:02:13,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:02:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:02:13,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 01:02:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:02:13,361 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 01:02:13,361 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 01:02:13,362 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:02:13,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 01:02:13,365 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:02:13,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:02:13,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:02:13 BoogieIcfgContainer [2023-04-03 01:02:13,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:02:13,391 INFO L158 Benchmark]: Toolchain (without parser) took 3119.96ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 152.4MB in the beginning and 140.9MB in the end (delta: 11.5MB). Peak memory consumption was 89.1MB. Max. memory is 8.0GB. [2023-04-03 01:02:13,391 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:02:13,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.93ms. Allocated memory is still 188.7MB. Free memory was 151.9MB in the beginning and 134.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:02:13,391 INFO L158 Benchmark]: Boogie Preprocessor took 41.25ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 131.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:02:13,392 INFO L158 Benchmark]: RCFGBuilder took 742.90ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 153.7MB in the end (delta: -22.8MB). Peak memory consumption was 60.0MB. Max. memory is 8.0GB. [2023-04-03 01:02:13,392 INFO L158 Benchmark]: TraceAbstraction took 1944.73ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 152.7MB in the beginning and 140.9MB in the end (delta: 11.8MB). Peak memory consumption was 88.9MB. Max. memory is 8.0GB. [2023-04-03 01:02:13,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.93ms. Allocated memory is still 188.7MB. Free memory was 151.9MB in the beginning and 134.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.25ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 131.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 742.90ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 153.7MB in the end (delta: -22.8MB). Peak memory consumption was 60.0MB. Max. memory is 8.0GB. * TraceAbstraction took 1944.73ms. Allocated memory was 188.7MB in the beginning and 265.3MB in the end (delta: 76.5MB). Free memory was 152.7MB in the beginning and 140.9MB in the end (delta: 11.8MB). Peak memory consumption was 88.9MB. 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: 809]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L88] int cleanupTimeShifts = 4; [L396] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L169] int retValue_acc ; [L170] 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] [L174] 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] [L175] 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] [L176] 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] [L218] int retValue_acc ; [L221] retValue_acc = 1 [L222] return (retValue_acc); [L176] 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] [L176] tmp = valid_product() [L178] 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] [L180] 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] [L181] 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] [L160] 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] [L739] int splverifierCounter ; [L740] int tmp ; [L741] int tmp___0 ; [L742] int tmp___1 ; [L743] int tmp___2 ; [L746] 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] [L748] 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] [L750] COND TRUE splverifierCounter < 4 [L756] tmp = __VERIFIER_nondet_int() [L758] 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] [L760] 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] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 [L760] 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] [L766] tmp___0 = __VERIFIER_nondet_int() [L768] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L776] tmp___2 = __VERIFIER_nondet_int() [L778] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L793] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L67] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); [L67] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L71] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L71] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L77] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 169 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 1686 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1188 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 660 IncrementalHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 498 mSDtfsCounter, 660 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=557occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 93 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 577 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! [2023-04-03 01:02:13,421 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...