/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 IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:53:46,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:53:46,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:53:46,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:53:46,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:53:46,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:53:46,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:53:46,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:53:46,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:53:46,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:53:46,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:53:46,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:53:46,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:53:46,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:53:46,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:53:46,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:53:46,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:53:46,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:53:46,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:53:46,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:53:46,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:53:46,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:53:46,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:53:46,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:53:46,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:53:46,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:53:46,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:53:46,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:53:46,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:53:46,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:53:46,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:53:46,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:53:46,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:53:46,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:53:46,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:53:46,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:53:46,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:53:46,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:53:46,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:53:46,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:53:46,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:53:46,664 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 [2023-03-31 23:53:46,684 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:53:46,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:53:46,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:53:46,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:53:46,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:53:46,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:53:46,685 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:53:46,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:53:46,685 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:53:46,686 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:53:46,686 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:53:46,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:53:46,687 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:53:46,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:53:46,687 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:53:46,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:53:46,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:53:46,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:53:46,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:53:46,689 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:53:46,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:53:46,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:53:46,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:53:46,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:53:46,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:53:46,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:53:46,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:53:46,921 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:53:46,922 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:53:46,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2023-03-31 23:53:48,105 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:53:48,336 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:53:48,337 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2023-03-31 23:53:48,350 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e6e1399/faf18cee11974b47840646e88d2889c7/FLAGcef843e8a [2023-03-31 23:53:48,362 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e6e1399/faf18cee11974b47840646e88d2889c7 [2023-03-31 23:53:48,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:53:48,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:53:48,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:53:48,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:53:48,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:53:48,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e1bc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48, skipping insertion in model container [2023-03-31 23:53:48,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:53:48,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:53:48,547 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_spec2_product60.cil.c[3241,3254] [2023-03-31 23:53:48,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:53:48,652 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:53:48,667 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_spec2_product60.cil.c[3241,3254] [2023-03-31 23:53:48,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:53:48,755 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:53:48,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48 WrapperNode [2023-03-31 23:53:48,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:53:48,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:53:48,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:53:48,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:53:48,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,807 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:53:48,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:53:48,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:53:48,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:53:48,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (1/1) ... [2023-03-31 23:53:48,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:53:48,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:48,862 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) [2023-03-31 23:53:48,868 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 [2023-03-31 23:53:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:53:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:53:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:53:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:53:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:53:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:53:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:53:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:53:48,907 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:53:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:53:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:53:48,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:53:48,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:53:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:53:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:53:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:53:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:53:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:53:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:53:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:53:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:53:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:53:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:53:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:53:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:53:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:53:48,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:53:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:53:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:53:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:53:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:53:48,918 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:53:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:53:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:53:48,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:53:49,139 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:53:49,141 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:53:49,734 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:53:49,908 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:53:49,908 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:53:49,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:53:49 BoogieIcfgContainer [2023-03-31 23:53:49,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:53:49,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:53:49,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:53:49,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:53:49,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:53:48" (1/3) ... [2023-03-31 23:53:49,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbd0e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:53:49, skipping insertion in model container [2023-03-31 23:53:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:48" (2/3) ... [2023-03-31 23:53:49,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbd0e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:53:49, skipping insertion in model container [2023-03-31 23:53:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:53:49" (3/3) ... [2023-03-31 23:53:49,924 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2023-03-31 23:53:49,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:53:49,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:53:50,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:53:50,010 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;@4d01b38f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:53:50,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:53:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 92 states have internal predecessors, (97), 52 states have call successors, (52), 33 states have call predecessors, (52), 33 states have return successors, (52), 47 states have call predecessors, (52), 52 states have call successors, (52) [2023-03-31 23:53:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:53:50,026 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:50,027 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] [2023-03-31 23:53:50,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:50,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1957735763, now seen corresponding path program 1 times [2023-03-31 23:53:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985263449] [2023-03-31 23:53:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:50,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:50,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985263449] [2023-03-31 23:53:50,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985263449] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:50,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:50,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:53:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104495760] [2023-03-31 23:53:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:50,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:53:50,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:53:50,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:53:50,289 INFO L87 Difference]: Start difference. First operand has 164 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 92 states have internal predecessors, (97), 52 states have call successors, (52), 33 states have call predecessors, (52), 33 states have return successors, (52), 47 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-03-31 23:53:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:50,361 INFO L93 Difference]: Finished difference Result 258 states and 313 transitions. [2023-03-31 23:53:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:53:50,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 46 [2023-03-31 23:53:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:50,372 INFO L225 Difference]: With dead ends: 258 [2023-03-31 23:53:50,372 INFO L226 Difference]: Without dead ends: 131 [2023-03-31 23:53:50,376 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 [2023-03-31 23:53:50,379 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:50,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:53:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-03-31 23:53:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-03-31 23:53:50,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 80 states have internal predecessors, (83), 37 states have call successors, (37), 31 states have call predecessors, (37), 26 states have return successors, (32), 27 states have call predecessors, (32), 32 states have call successors, (32) [2023-03-31 23:53:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2023-03-31 23:53:50,432 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 46 [2023-03-31 23:53:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:50,432 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2023-03-31 23:53:50,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-03-31 23:53:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2023-03-31 23:53:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:53:50,436 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:50,436 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] [2023-03-31 23:53:50,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:53:50,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:50,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:50,437 INFO L85 PathProgramCache]: Analyzing trace with hash -487389382, now seen corresponding path program 1 times [2023-03-31 23:53:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:50,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462503700] [2023-03-31 23:53:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:50,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:50,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462503700] [2023-03-31 23:53:50,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462503700] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:50,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:50,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:53:50,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126999637] [2023-03-31 23:53:50,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:53:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:53:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:53:50,581 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2023-03-31 23:53:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:50,639 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2023-03-31 23:53:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:53:50,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 [2023-03-31 23:53:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:50,642 INFO L225 Difference]: With dead ends: 206 [2023-03-31 23:53:50,642 INFO L226 Difference]: Without dead ends: 123 [2023-03-31 23:53:50,643 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 [2023-03-31 23:53:50,644 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 11 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 229 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:53:50,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-03-31 23:53:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-03-31 23:53:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 75 states have internal predecessors, (77), 34 states have call successors, (34), 30 states have call predecessors, (34), 26 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2023-03-31 23:53:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2023-03-31 23:53:50,658 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 47 [2023-03-31 23:53:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:50,658 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2023-03-31 23:53:50,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2023-03-31 23:53:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2023-03-31 23:53:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-03-31 23:53:50,660 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:50,660 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] [2023-03-31 23:53:50,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:53:50,661 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:50,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:50,661 INFO L85 PathProgramCache]: Analyzing trace with hash 972278230, now seen corresponding path program 1 times [2023-03-31 23:53:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:50,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033013904] [2023-03-31 23:53:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:50,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:50,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:50,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033013904] [2023-03-31 23:53:50,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033013904] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:50,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:50,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:53:50,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930816273] [2023-03-31 23:53:50,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:50,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:53:50,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:53:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:53:50,874 INFO L87 Difference]: Start difference. First operand 123 states and 141 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) [2023-03-31 23:53:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:51,237 INFO L93 Difference]: Finished difference Result 365 states and 435 transitions. [2023-03-31 23:53:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:53:51,238 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 [2023-03-31 23:53:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:51,247 INFO L225 Difference]: With dead ends: 365 [2023-03-31 23:53:51,247 INFO L226 Difference]: Without dead ends: 267 [2023-03-31 23:53:51,253 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 [2023-03-31 23:53:51,256 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 229 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:51,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 578 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:53:51,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-03-31 23:53:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 255. [2023-03-31 23:53:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 136 states have (on average 1.2794117647058822) internal successors, (174), 161 states have internal predecessors, (174), 66 states have call successors, (66), 58 states have call predecessors, (66), 52 states have return successors, (63), 50 states have call predecessors, (63), 62 states have call successors, (63) [2023-03-31 23:53:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2023-03-31 23:53:51,324 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 51 [2023-03-31 23:53:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2023-03-31 23:53:51,325 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) [2023-03-31 23:53:51,325 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2023-03-31 23:53:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-03-31 23:53:51,333 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:51,333 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] [2023-03-31 23:53:51,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:53:51,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:51,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash -97226317, now seen corresponding path program 1 times [2023-03-31 23:53:51,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:51,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545781448] [2023-03-31 23:53:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:51,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:51,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545781448] [2023-03-31 23:53:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545781448] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:53:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540937575] [2023-03-31 23:53:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:53:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:51,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:53:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:53:51,580 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-03-31 23:53:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:51,756 INFO L93 Difference]: Finished difference Result 697 states and 846 transitions. [2023-03-31 23:53:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:53:51,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 55 [2023-03-31 23:53:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:51,760 INFO L225 Difference]: With dead ends: 697 [2023-03-31 23:53:51,760 INFO L226 Difference]: Without dead ends: 467 [2023-03-31 23:53:51,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:53:51,762 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 99 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:51,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 522 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:53:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-03-31 23:53:51,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 455. [2023-03-31 23:53:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 246 states have (on average 1.2723577235772359) internal successors, (313), 292 states have internal predecessors, (313), 116 states have call successors, (116), 100 states have call predecessors, (116), 92 states have return successors, (114), 88 states have call predecessors, (114), 112 states have call successors, (114) [2023-03-31 23:53:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2023-03-31 23:53:51,848 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 55 [2023-03-31 23:53:51,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:51,849 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2023-03-31 23:53:51,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-03-31 23:53:51,849 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2023-03-31 23:53:51,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-03-31 23:53:51,852 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:51,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:51,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:53:51,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:51,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash 291140116, now seen corresponding path program 1 times [2023-03-31 23:53:51,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:51,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241439245] [2023-03-31 23:53:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:51,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:52,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241439245] [2023-03-31 23:53:52,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241439245] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:52,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:53:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823378647] [2023-03-31 23:53:52,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:52,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:53:52,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:52,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:53:52,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:53:52,010 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:53:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:52,457 INFO L93 Difference]: Finished difference Result 1187 states and 1538 transitions. [2023-03-31 23:53:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:53:52,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-03-31 23:53:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:52,464 INFO L225 Difference]: With dead ends: 1187 [2023-03-31 23:53:52,464 INFO L226 Difference]: Without dead ends: 757 [2023-03-31 23:53:52,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-03-31 23:53:52,468 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 159 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:52,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 294 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:53:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-03-31 23:53:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 668. [2023-03-31 23:53:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 373 states have (on average 1.2117962466487935) internal successors, (452), 411 states have internal predecessors, (452), 146 states have call successors, (146), 130 states have call predecessors, (146), 148 states have return successors, (198), 148 states have call predecessors, (198), 142 states have call successors, (198) [2023-03-31 23:53:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 796 transitions. [2023-03-31 23:53:52,539 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 796 transitions. Word has length 58 [2023-03-31 23:53:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:52,540 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 796 transitions. [2023-03-31 23:53:52,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:53:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 796 transitions. [2023-03-31 23:53:52,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 23:53:52,542 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:52,542 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:52,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:53:52,543 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:52,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1465826918, now seen corresponding path program 1 times [2023-03-31 23:53:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943212321] [2023-03-31 23:53:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 23:53:52,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943212321] [2023-03-31 23:53:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943212321] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:53:52,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866057623] [2023-03-31 23:53:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:52,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:53:52,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:52,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:53:52,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:53:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:52,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 25 conjunts are in the unsatisfiable core [2023-03-31 23:53:53,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:53:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:53,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:53:53,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866057623] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:53,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:53:53,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 17 [2023-03-31 23:53:53,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036602309] [2023-03-31 23:53:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:53,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 23:53:53,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 23:53:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2023-03-31 23:53:53,125 INFO L87 Difference]: Start difference. First operand 668 states and 796 transitions. Second operand has 11 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) [2023-03-31 23:53:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:53,544 INFO L93 Difference]: Finished difference Result 1598 states and 1986 transitions. [2023-03-31 23:53:53,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:53:53,545 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) Word has length 89 [2023-03-31 23:53:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:53,550 INFO L225 Difference]: With dead ends: 1598 [2023-03-31 23:53:53,550 INFO L226 Difference]: Without dead ends: 955 [2023-03-31 23:53:53,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-03-31 23:53:53,553 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 117 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:53,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 793 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:53:53,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-03-31 23:53:53,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 935. [2023-03-31 23:53:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 529 states have (on average 1.2079395085066162) internal successors, (639), 577 states have internal predecessors, (639), 205 states have call successors, (205), 183 states have call predecessors, (205), 200 states have return successors, (281), 204 states have call predecessors, (281), 201 states have call successors, (281) [2023-03-31 23:53:53,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1125 transitions. [2023-03-31 23:53:53,623 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1125 transitions. Word has length 89 [2023-03-31 23:53:53,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:53,624 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 1125 transitions. [2023-03-31 23:53:53,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) [2023-03-31 23:53:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1125 transitions. [2023-03-31 23:53:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-03-31 23:53:53,627 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:53,628 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:53,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:53:53,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-31 23:53:53,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:53,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2054026771, now seen corresponding path program 1 times [2023-03-31 23:53:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733677784] [2023-03-31 23:53:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:53,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 23:53:54,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733677784] [2023-03-31 23:53:54,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733677784] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:54,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:54,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:53:54,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109853141] [2023-03-31 23:53:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:54,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:53:54,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:54,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:53:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:53:54,018 INFO L87 Difference]: Start difference. First operand 935 states and 1125 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-03-31 23:53:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:54,154 INFO L93 Difference]: Finished difference Result 1220 states and 1479 transitions. [2023-03-31 23:53:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:53:54,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 136 [2023-03-31 23:53:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:54,162 INFO L225 Difference]: With dead ends: 1220 [2023-03-31 23:53:54,162 INFO L226 Difference]: Without dead ends: 1217 [2023-03-31 23:53:54,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:53:54,164 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 106 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:54,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 220 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:53:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2023-03-31 23:53:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1175. [2023-03-31 23:53:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 659 states have (on average 1.2078907435508346) internal successors, (796), 722 states have internal predecessors, (796), 261 states have call successors, (261), 233 states have call predecessors, (261), 254 states have return successors, (369), 255 states have call predecessors, (369), 257 states have call successors, (369) [2023-03-31 23:53:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1426 transitions. [2023-03-31 23:53:54,271 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1426 transitions. Word has length 136 [2023-03-31 23:53:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:54,273 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1426 transitions. [2023-03-31 23:53:54,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-03-31 23:53:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1426 transitions. [2023-03-31 23:53:54,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-03-31 23:53:54,282 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:54,283 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:54,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 23:53:54,283 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:54,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash -710523367, now seen corresponding path program 1 times [2023-03-31 23:53:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198139241] [2023-03-31 23:53:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:54,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-03-31 23:53:54,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:54,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198139241] [2023-03-31 23:53:54,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198139241] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:53:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4574352] [2023-03-31 23:53:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:54,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:53:54,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:54,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:53:54,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:53:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:55,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:53:55,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:53:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-03-31 23:53:55,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:53:55,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4574352] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:55,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:53:55,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-03-31 23:53:55,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539701346] [2023-03-31 23:53:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:53:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:53:55,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-03-31 23:53:55,457 INFO L87 Difference]: Start difference. First operand 1175 states and 1426 transitions. Second operand has 14 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2023-03-31 23:53:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:56,828 INFO L93 Difference]: Finished difference Result 3192 states and 4014 transitions. [2023-03-31 23:53:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:53:56,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) Word has length 189 [2023-03-31 23:53:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:56,839 INFO L225 Difference]: With dead ends: 3192 [2023-03-31 23:53:56,839 INFO L226 Difference]: Without dead ends: 2042 [2023-03-31 23:53:56,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-03-31 23:53:56,846 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 208 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:56,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 405 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 23:53:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2023-03-31 23:53:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1910. [2023-03-31 23:53:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1132 states have (on average 1.2067137809187278) internal successors, (1366), 1214 states have internal predecessors, (1366), 399 states have call successors, (399), 387 states have call predecessors, (399), 378 states have return successors, (569), 372 states have call predecessors, (569), 395 states have call successors, (569) [2023-03-31 23:53:56,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2334 transitions. [2023-03-31 23:53:56,998 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2334 transitions. Word has length 189 [2023-03-31 23:53:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:56,998 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2334 transitions. [2023-03-31 23:53:56,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (32), 5 states have call predecessors, (32), 7 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2023-03-31 23:53:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2334 transitions. [2023-03-31 23:53:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-03-31 23:53:57,024 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:57,025 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:53:57,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:53:57,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-03-31 23:53:57,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:57,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:57,232 INFO L85 PathProgramCache]: Analyzing trace with hash -197073488, now seen corresponding path program 1 times [2023-03-31 23:53:57,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:57,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62678391] [2023-03-31 23:53:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:57,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 41 proven. 18 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-03-31 23:53:58,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:58,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62678391] [2023-03-31 23:53:58,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62678391] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:53:58,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138116927] [2023-03-31 23:53:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:58,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:53:58,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:58,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:53:58,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 23:53:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:58,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 54 conjunts are in the unsatisfiable core [2023-03-31 23:53:58,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:53:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 94 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:53:58,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:54:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-03-31 23:54:00,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138116927] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:54:00,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [227572944] [2023-03-31 23:54:00,085 INFO L159 IcfgInterpreter]: Started Sifa with 111 locations of interest [2023-03-31 23:54:00,085 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:54:00,089 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:54:00,093 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:54:00,093 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:54:00,301 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 31 for LOIs [2023-03-31 23:54:00,333 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-31 23:54:00,503 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 36 for LOIs [2023-03-31 23:54:00,569 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 36 for LOIs [2023-03-31 23:54:02,381 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 65 for LOIs [2023-03-31 23:54:02,412 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-03-31 23:54:02,493 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 29 for LOIs [2023-03-31 23:54:02,499 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__2 with input of size 25 for LOIs [2023-03-31 23:54:02,551 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 30 for LOIs [2023-03-31 23:54:02,555 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 35 for LOIs [2023-03-31 23:54:02,558 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 32 for LOIs [2023-03-31 23:54:02,635 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2023-03-31 23:54:02,731 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 25 for LOIs [2023-03-31 23:54:02,748 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 25 for LOIs [2023-03-31 23:54:02,753 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 37 for LOIs [2023-03-31 23:54:02,797 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 35 for LOIs [2023-03-31 23:54:02,819 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2023-03-31 23:54:02,825 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 27 for LOIs [2023-03-31 23:54:02,827 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 26 for LOIs [2023-03-31 23:54:02,829 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 26 for LOIs [2023-03-31 23:54:02,848 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 26 for LOIs [2023-03-31 23:54:02,852 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2023-03-31 23:54:02,856 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__1 with input of size 28 for LOIs [2023-03-31 23:54:02,858 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 26 for LOIs [2023-03-31 23:54:02,860 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 26 for LOIs [2023-03-31 23:54:02,862 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 26 for LOIs [2023-03-31 23:54:02,865 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 26 for LOIs [2023-03-31 23:54:02,866 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:54:07,561 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23074#(and (<= ~methaneLevelCritical~0 1) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:54:07,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:54:07,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:54:07,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 38 [2023-03-31 23:54:07,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979645045] [2023-03-31 23:54:07,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:54:07,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-03-31 23:54:07,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:07,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-03-31 23:54:07,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=639, Invalid=8867, Unknown=0, NotChecked=0, Total=9506 [2023-03-31 23:54:07,566 INFO L87 Difference]: Start difference. First operand 1910 states and 2334 transitions. Second operand has 38 states, 28 states have (on average 5.678571428571429) internal successors, (159), 29 states have internal predecessors, (159), 14 states have call successors, (77), 11 states have call predecessors, (77), 23 states have return successors, (77), 21 states have call predecessors, (77), 14 states have call successors, (77) [2023-03-31 23:54:10,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:10,816 INFO L93 Difference]: Finished difference Result 7168 states and 9242 transitions. [2023-03-31 23:54:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-31 23:54:10,816 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 28 states have (on average 5.678571428571429) internal successors, (159), 29 states have internal predecessors, (159), 14 states have call successors, (77), 11 states have call predecessors, (77), 23 states have return successors, (77), 21 states have call predecessors, (77), 14 states have call successors, (77) Word has length 192 [2023-03-31 23:54:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:10,845 INFO L225 Difference]: With dead ends: 7168 [2023-03-31 23:54:10,845 INFO L226 Difference]: Without dead ends: 5283 [2023-03-31 23:54:10,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 488 SyntacticMatches, 22 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7023 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1035, Invalid=13007, Unknown=0, NotChecked=0, Total=14042 [2023-03-31 23:54:10,856 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 1183 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 4436 mSolverCounterSat, 991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 4436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:10,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 952 Invalid, 5427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 4436 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-03-31 23:54:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5283 states. [2023-03-31 23:54:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5283 to 4610. [2023-03-31 23:54:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 2745 states have (on average 1.193806921675774) internal successors, (3277), 2911 states have internal predecessors, (3277), 965 states have call successors, (965), 907 states have call predecessors, (965), 899 states have return successors, (1391), 919 states have call predecessors, (1391), 961 states have call successors, (1391) [2023-03-31 23:54:11,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 5633 transitions. [2023-03-31 23:54:11,246 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 5633 transitions. Word has length 192 [2023-03-31 23:54:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:11,247 INFO L495 AbstractCegarLoop]: Abstraction has 4610 states and 5633 transitions. [2023-03-31 23:54:11,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 28 states have (on average 5.678571428571429) internal successors, (159), 29 states have internal predecessors, (159), 14 states have call successors, (77), 11 states have call predecessors, (77), 23 states have return successors, (77), 21 states have call predecessors, (77), 14 states have call successors, (77) [2023-03-31 23:54:11,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 5633 transitions. [2023-03-31 23:54:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-03-31 23:54:11,308 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:11,308 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:11,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 23:54:11,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:11,515 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:11,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1084257009, now seen corresponding path program 2 times [2023-03-31 23:54:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517818864] [2023-03-31 23:54:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 82 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-03-31 23:54:11,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:11,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517818864] [2023-03-31 23:54:11,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517818864] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:54:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933349776] [2023-03-31 23:54:11,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 23:54:11,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:11,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:54:11,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 23:54:11,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-31 23:54:11,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 23:54:11,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-31 23:54:11,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:54:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-03-31 23:54:11,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:54:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933349776] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:11,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:54:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2023-03-31 23:54:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159120413] [2023-03-31 23:54:11,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:11,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:54:11,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:54:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:54:11,941 INFO L87 Difference]: Start difference. First operand 4610 states and 5633 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-03-31 23:54:12,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:12,519 INFO L93 Difference]: Finished difference Result 9188 states and 11381 transitions. [2023-03-31 23:54:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:54:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 255 [2023-03-31 23:54:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:12,546 INFO L225 Difference]: With dead ends: 9188 [2023-03-31 23:54:12,546 INFO L226 Difference]: Without dead ends: 4603 [2023-03-31 23:54:12,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-03-31 23:54:12,559 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 216 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:12,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 204 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:54:12,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2023-03-31 23:54:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4251. [2023-03-31 23:54:12,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 2584 states have (on average 1.174922600619195) internal successors, (3036), 2724 states have internal predecessors, (3036), 863 states have call successors, (863), 849 states have call predecessors, (863), 803 states have return successors, (1017), 793 states have call predecessors, (1017), 859 states have call successors, (1017) [2023-03-31 23:54:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 4916 transitions. [2023-03-31 23:54:12,950 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 4916 transitions. Word has length 255 [2023-03-31 23:54:12,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:12,952 INFO L495 AbstractCegarLoop]: Abstraction has 4251 states and 4916 transitions. [2023-03-31 23:54:12,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (37), 4 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-03-31 23:54:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 4916 transitions. [2023-03-31 23:54:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-03-31 23:54:12,965 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:12,965 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:12,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 23:54:13,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:13,172 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:13,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash 259135831, now seen corresponding path program 1 times [2023-03-31 23:54:13,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:13,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967238044] [2023-03-31 23:54:13,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:13,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 107 proven. 62 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-03-31 23:54:14,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967238044] [2023-03-31 23:54:14,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967238044] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:54:14,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819501257] [2023-03-31 23:54:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:14,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:54:14,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:14,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:54:14,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 23:54:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:14,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 58 conjunts are in the unsatisfiable core [2023-03-31 23:54:14,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:54:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 247 proven. 35 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-03-31 23:54:15,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:54:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 127 proven. 43 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-03-31 23:54:16,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819501257] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:54:16,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1406073536] [2023-03-31 23:54:16,478 INFO L159 IcfgInterpreter]: Started Sifa with 114 locations of interest [2023-03-31 23:54:16,478 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:54:16,479 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:54:16,479 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:54:16,479 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:54:16,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 31 for LOIs [2023-03-31 23:54:16,687 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-31 23:54:16,841 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 36 for LOIs [2023-03-31 23:54:16,884 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 36 for LOIs [2023-03-31 23:54:18,479 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 65 for LOIs [2023-03-31 23:54:18,500 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-03-31 23:54:18,572 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 29 for LOIs [2023-03-31 23:54:18,579 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__2 with input of size 25 for LOIs [2023-03-31 23:54:18,620 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 30 for LOIs [2023-03-31 23:54:18,623 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 35 for LOIs [2023-03-31 23:54:18,626 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 32 for LOIs [2023-03-31 23:54:18,710 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2023-03-31 23:54:18,781 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 25 for LOIs [2023-03-31 23:54:18,799 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 25 for LOIs [2023-03-31 23:54:18,803 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 37 for LOIs [2023-03-31 23:54:18,842 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 35 for LOIs [2023-03-31 23:54:18,865 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2023-03-31 23:54:18,871 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 27 for LOIs [2023-03-31 23:54:18,873 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 26 for LOIs [2023-03-31 23:54:18,875 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 26 for LOIs [2023-03-31 23:54:18,916 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 26 for LOIs [2023-03-31 23:54:18,921 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 36 for LOIs [2023-03-31 23:54:18,924 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2023-03-31 23:54:18,928 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__1 with input of size 28 for LOIs [2023-03-31 23:54:18,931 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 26 for LOIs [2023-03-31 23:54:18,932 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 26 for LOIs [2023-03-31 23:54:18,934 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 26 for LOIs [2023-03-31 23:54:18,936 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 26 for LOIs [2023-03-31 23:54:18,938 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:54:24,279 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '61649#(and (<= ~methaneLevelCritical~0 1) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:54:24,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:54:24,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:54:24,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 16] total 37 [2023-03-31 23:54:24,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602666501] [2023-03-31 23:54:24,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:54:24,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-03-31 23:54:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-03-31 23:54:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=598, Invalid=8908, Unknown=0, NotChecked=0, Total=9506 [2023-03-31 23:54:24,285 INFO L87 Difference]: Start difference. First operand 4251 states and 4916 transitions. Second operand has 37 states, 28 states have (on average 6.642857142857143) internal successors, (186), 30 states have internal predecessors, (186), 17 states have call successors, (87), 9 states have call predecessors, (87), 22 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) [2023-03-31 23:54:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:26,168 INFO L93 Difference]: Finished difference Result 6113 states and 7245 transitions. [2023-03-31 23:54:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 23:54:26,169 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 28 states have (on average 6.642857142857143) internal successors, (186), 30 states have internal predecessors, (186), 17 states have call successors, (87), 9 states have call predecessors, (87), 22 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) Word has length 291 [2023-03-31 23:54:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:26,171 INFO L225 Difference]: With dead ends: 6113 [2023-03-31 23:54:26,172 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:54:26,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 776 SyntacticMatches, 31 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7950 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=968, Invalid=12604, Unknown=0, NotChecked=0, Total=13572 [2023-03-31 23:54:26,191 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 341 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:26,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 650 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 23:54:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:54:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:54:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:54:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:54:26,193 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 291 [2023-03-31 23:54:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:26,193 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:54:26,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 28 states have (on average 6.642857142857143) internal successors, (186), 30 states have internal predecessors, (186), 17 states have call successors, (87), 9 states have call predecessors, (87), 22 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) [2023-03-31 23:54:26,194 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:54:26,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:54:26,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:54:26,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 23:54:26,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-03-31 23:54:26,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point L479(lines 456 480) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point L463(lines 463 467) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 432 487) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point L457-2(lines 457 478) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 432 487) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point L514-2(lines 514 539) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point L540(lines 513 541) no Hoare annotation was computed. [2023-03-31 23:54:35,280 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 488 547) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point L533-1(line 533) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 488 547) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 488 547) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 524) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 299 307) no Hoare annotation was computed. [2023-03-31 23:54:35,281 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 299 307) the Hoare annotation is: true [2023-03-31 23:54:35,281 INFO L895 garLoopResultBuilder]: At program point L257(line 257) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,281 INFO L895 garLoopResultBuilder]: At program point L256(line 256) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,281 INFO L895 garLoopResultBuilder]: At program point L256-1(line 256) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 250 272) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 250 272) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,282 INFO L895 garLoopResultBuilder]: At program point L262(line 262) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:54:35,282 INFO L895 garLoopResultBuilder]: At program point L262-1(line 262) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 267) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L260-1(lines 260 267) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L258(line 258) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2023-03-31 23:54:35,282 INFO L899 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L216(line 216) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 203 226) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 964 978) no Hoare annotation was computed. [2023-03-31 23:54:35,283 INFO L895 garLoopResultBuilder]: At program point L970(line 970) the Hoare annotation is: (let ((.cse2 (< 2 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (< ~waterLevel~0 2)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1) (or .cse2 (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) .cse3 .cse1) (or .cse2 .cse0 .cse3 .cse1))) [2023-03-31 23:54:35,284 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 964 978) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (< 2 ~waterLevel~0)) (.cse2 (< ~waterLevel~0 2)) (.cse4 (not .cse1)) (.cse5 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse2 .cse3) (or .cse4 .cse5 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse3)))) [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 974) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 945 963) the Hoare annotation is: true [2023-03-31 23:54:35,284 INFO L902 garLoopResultBuilder]: At program point L952(line 952) the Hoare annotation is: true [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point L952-1(line 952) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 945 963) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 285 291) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 285 291) the Hoare annotation is: true [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 699 744) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 699 744) no Hoare annotation was computed. [2023-03-31 23:54:35,284 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 137 150) the Hoare annotation is: true [2023-03-31 23:54:35,284 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 137 150) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L895 garLoopResultBuilder]: At program point L830(line 830) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (< 1 ~waterLevel~0)) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (< 2 ~waterLevel~0) (not .cse5) .cse0 (< ~waterLevel~0 2) .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse3 .cse4))) [2023-03-31 23:54:35,285 INFO L899 garLoopResultBuilder]: For program point L830-1(lines 811 835) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L895 garLoopResultBuilder]: At program point L825(line 825) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 2) .cse0 .cse1))) [2023-03-31 23:54:35,285 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 811 835) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L895 garLoopResultBuilder]: At program point L821(line 821) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment_~tmp~6)) .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) .cse4 (< ~waterLevel~0 2) .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-03-31 23:54:35,285 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 827) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) .cse4 (< ~waterLevel~0 2) .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-03-31 23:54:35,285 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 832) no Hoare annotation was computed. [2023-03-31 23:54:35,285 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 811 835) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) .cse0 .cse1))) [2023-03-31 23:54:35,286 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 777 783) no Hoare annotation was computed. [2023-03-31 23:54:35,286 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 777 783) the Hoare annotation is: true [2023-03-31 23:54:35,286 INFO L895 garLoopResultBuilder]: At program point L353(line 353) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)))) [2023-03-31 23:54:35,286 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 366) no Hoare annotation was computed. [2023-03-31 23:54:35,286 INFO L895 garLoopResultBuilder]: At program point L343(line 343) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 2))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-03-31 23:54:35,286 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 311 378) no Hoare annotation was computed. [2023-03-31 23:54:35,286 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 347) no Hoare annotation was computed. [2023-03-31 23:54:35,286 INFO L899 garLoopResultBuilder]: For program point L341-1(lines 341 347) no Hoare annotation was computed. [2023-03-31 23:54:35,286 INFO L895 garLoopResultBuilder]: At program point L368(lines 321 370) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= test_~splverifierCounter~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (<= ~waterLevel~0 2))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3 (not (= 0 ~systemActive~0))) (and .cse4 .cse0 .cse1 (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2023-03-31 23:54:35,286 INFO L895 garLoopResultBuilder]: At program point L333(line 333) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) .cse0 .cse1 (or (= (+ |old(~waterLevel~0)| 1) ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0))))) [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 337) no Hoare annotation was computed. [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 331 337) no Hoare annotation was computed. [2023-03-31 23:54:35,287 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 311 378) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,287 INFO L895 garLoopResultBuilder]: At program point L371(lines 320 372) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,287 INFO L895 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) .cse0 .cse1 (or (= (+ |old(~waterLevel~0)| 1) ~waterLevel~0) (= |old(~waterLevel~0)| ~waterLevel~0))) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0))))) [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 365) no Hoare annotation was computed. [2023-03-31 23:54:35,287 INFO L895 garLoopResultBuilder]: At program point L359-1(lines 351 366) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= test_~splverifierCounter~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (<= ~waterLevel~0 2))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 311 378) no Hoare annotation was computed. [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point L322(lines 321 370) no Hoare annotation was computed. [2023-03-31 23:54:35,287 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 836 843) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-03-31 23:54:35,287 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 836 843) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 151 159) the Hoare annotation is: true [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 151 159) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L895 garLoopResultBuilder]: At program point L1012(line 1012) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse0 (< 2 ~waterLevel~0)) (.cse2 (< ~waterLevel~0 2))) (and (or .cse0 .cse1 .cse2) (or .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0)) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse2 (= 0 ~systemActive~0)))) [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1016) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1009(lines 1009 1019) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L895 garLoopResultBuilder]: At program point L1007(line 1007) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0))) (let ((.cse0 (< 2 ~waterLevel~0)) (.cse4 (< ~waterLevel~0 2)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not .cse5)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse3 .cse4 (= 0 ~systemActive~0)) (or .cse1 .cse2 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse3)))) [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1007-1(line 1007) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1005(lines 1005 1022) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1005-1(lines 997 1025) no Hoare annotation was computed. [2023-03-31 23:54:35,288 INFO L895 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse0 (< 2 ~waterLevel~0)) (.cse4 (< ~waterLevel~0 2)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse4) (or .cse1 .cse2 .cse3 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse6))) [2023-03-31 23:54:35,288 INFO L899 garLoopResultBuilder]: For program point L1003-1(line 1003) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 997 1025) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse0 (< 2 ~waterLevel~0)) (.cse4 (< ~waterLevel~0 2)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse4) (or .cse1 .cse2 .cse3 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse6))) [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 997 1025) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 105 127) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 105 127) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 989 996) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (not (= ~methaneLevelCritical~0 0))) [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 989 996) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point L850-1(line 850) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 845 861) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 845 861) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-03-31 23:54:35,289 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= activatePump_~tmp~7 0) (= ~methaneLevelCritical~0 0)) (< ~waterLevel~0 2) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point L856-1(lines 845 861) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 858) no Hoare annotation was computed. [2023-03-31 23:54:35,289 INFO L895 garLoopResultBuilder]: At program point L850(line 850) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-03-31 23:54:35,290 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 128 136) no Hoare annotation was computed. [2023-03-31 23:54:35,290 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 128 136) no Hoare annotation was computed. [2023-03-31 23:54:35,290 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 926 944) no Hoare annotation was computed. [2023-03-31 23:54:35,290 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 926 944) the Hoare annotation is: true [2023-03-31 23:54:35,290 INFO L902 garLoopResultBuilder]: At program point L933(line 933) the Hoare annotation is: true [2023-03-31 23:54:35,290 INFO L899 garLoopResultBuilder]: For program point L933-1(line 933) no Hoare annotation was computed. [2023-03-31 23:54:35,290 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 104) the Hoare annotation is: true [2023-03-31 23:54:35,290 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2023-03-31 23:54:35,290 INFO L895 garLoopResultBuilder]: At program point L766(line 766) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse7 (= 0 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse6)) (.cse2 (and (= ~pumpRunning~0 0) .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse7))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (< |old(~waterLevel~0)| 1) (<= 2 |old(~waterLevel~0)|) .cse2) (or .cse0 .cse1 .cse3 .cse2 .cse4) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse1 .cse3 .cse6 .cse7 .cse4)))) [2023-03-31 23:54:35,290 INFO L895 garLoopResultBuilder]: At program point L764(lines 764 770) the Hoare annotation is: (let ((.cse11 (= ~methaneLevelCritical~0 0)) (.cse13 (= |old(~pumpRunning~0)| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse8 (and .cse2 .cse12)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse5 (= 0 ~systemActive~0)) (.cse6 (< 2 |old(~waterLevel~0)|)) (.cse0 (not .cse13)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (< |old(~waterLevel~0)| 1)) (.cse10 (= ~methAndRunningLastTime~0 0)) (.cse4 (not .cse11)) (.cse9 (<= 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse10 .cse3 .cse5 .cse6) (or .cse0 .cse1 .cse8 .cse3 .cse6 (and .cse11 .cse12 (not .cse5))) (or .cse0 .cse1 .cse10 .cse3 .cse4 .cse6) (or .cse1 .cse10 .cse3 .cse4 .cse5 .cse6) (or .cse1 .cse3 .cse13 (and .cse2 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse5 .cse6) (or .cse0 .cse1 .cse7 .cse10 .cse4 .cse9)))) [2023-03-31 23:54:35,290 INFO L895 garLoopResultBuilder]: At program point L759(line 759) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1 (= 0 ~systemActive~0) .cse2) (or .cse3 .cse0 (< |old(~waterLevel~0)| 1) (<= 2 |old(~waterLevel~0)|)) (or .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point L757(lines 756 775) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 753 776) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 753 776) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) .cse0 .cse1))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) .cse2 .cse3 (= 0 ~systemActive~0) .cse4) (or .cse5 .cse2 .cse6 .cse3 .cse4) (or .cse5 .cse2 (< |old(~waterLevel~0)| 1) .cse6 (<= 2 |old(~waterLevel~0)|))))) [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 753 776) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2023-03-31 23:54:35,291 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2023-03-31 23:54:35,291 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2023-03-31 23:54:35,291 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2023-03-31 23:54:35,291 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 201) the Hoare annotation is: true [2023-03-31 23:54:35,292 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2023-03-31 23:54:35,292 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 60 71) no Hoare annotation was computed. [2023-03-31 23:54:35,292 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 60 71) the Hoare annotation is: (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (= 0 ~systemActive~0) (< 2 |old(~waterLevel~0)|) (not (= ~methAndRunningLastTime~0 0))) [2023-03-31 23:54:35,292 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 979 986) no Hoare annotation was computed. [2023-03-31 23:54:35,292 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 979 986) the Hoare annotation is: true [2023-03-31 23:54:35,292 INFO L895 garLoopResultBuilder]: At program point L799(line 799) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1 .cse2) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) .cse1 .cse2))) [2023-03-31 23:54:35,292 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 785 809) no Hoare annotation was computed. [2023-03-31 23:54:35,292 INFO L895 garLoopResultBuilder]: At program point L795(line 795) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 (< ~waterLevel~0 2) .cse1 .cse2) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1 .cse2))) [2023-03-31 23:54:35,292 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 801) no Hoare annotation was computed. [2023-03-31 23:54:35,292 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2 .cse3) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3))) [2023-03-31 23:54:35,292 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 785 809) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2 .cse3) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3))) [2023-03-31 23:54:35,293 INFO L895 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1 .cse2) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1 .cse2))) [2023-03-31 23:54:35,293 INFO L899 garLoopResultBuilder]: For program point L804-1(lines 785 809) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< 2 |old(~waterLevel~0)|)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< |old(~waterLevel~0)| 1) .cse0 (<= 2 |old(~waterLevel~0)|) .cse1 .cse2) (or .cse3 (not (= ~methaneLevelCritical~0 0)) .cse1 (= 0 ~systemActive~0) .cse4 .cse2) (or .cse0 .cse3 .cse1 .cse4 .cse2))) [2023-03-31 23:54:35,293 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 161 168) the Hoare annotation is: true [2023-03-31 23:54:35,293 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 161 168) no Hoare annotation was computed. [2023-03-31 23:54:35,293 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 292 298) the Hoare annotation is: true [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 292 298) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 881 889) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 881 889) the Hoare annotation is: true [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point L920(line 920) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 890 925) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 890 925) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 386 431) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 386 431) no Hoare annotation was computed. [2023-03-31 23:54:35,294 INFO L895 garLoopResultBuilder]: At program point L241(line 241) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,294 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 236 246) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 236 246) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~systemActive~0)| 1)) (<= 2 |old(~waterLevel~0)|)) [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 236 246) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L902 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: true [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 870 880) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 870 880) the Hoare annotation is: true [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 862 869) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 862 869) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 653 698) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 653 698) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 275 284) no Hoare annotation was computed. [2023-03-31 23:54:35,295 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 275 284) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L599-2(lines 599 619) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L620(lines 598 621) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 550 652) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 550 652) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 595) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L600(lines 599 619) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L631-1(line 631) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 637) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 550 652) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L615(line 615) no Hoare annotation was computed. [2023-03-31 23:54:35,296 INFO L899 garLoopResultBuilder]: For program point L615-1(line 615) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 227 233) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 227 233) the Hoare annotation is: true [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-03-31 23:54:35,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:54:35,297 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:54:35,300 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:35,302 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:54:35,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:54:35 BoogieIcfgContainer [2023-03-31 23:54:35,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:54:35,314 INFO L158 Benchmark]: Toolchain (without parser) took 46948.24ms. Allocated memory was 287.3MB in the beginning and 1.0GB in the end (delta: 752.9MB). Free memory was 236.3MB in the beginning and 774.1MB in the end (delta: -537.8MB). Peak memory consumption was 620.9MB. Max. memory is 8.0GB. [2023-03-31 23:54:35,314 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 136.5MB in the beginning and 136.3MB in the end (delta: 234.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:54:35,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.47ms. Allocated memory is still 287.3MB. Free memory was 236.3MB in the beginning and 217.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:54:35,314 INFO L158 Benchmark]: Boogie Preprocessor took 66.39ms. Allocated memory is still 287.3MB. Free memory was 217.4MB in the beginning and 213.7MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:54:35,315 INFO L158 Benchmark]: RCFGBuilder took 1087.34ms. Allocated memory is still 287.3MB. Free memory was 213.7MB in the beginning and 251.3MB in the end (delta: -37.6MB). Peak memory consumption was 72.0MB. Max. memory is 8.0GB. [2023-03-31 23:54:35,315 INFO L158 Benchmark]: TraceAbstraction took 45397.06ms. Allocated memory was 287.3MB in the beginning and 1.0GB in the end (delta: 752.9MB). Free memory was 250.3MB in the beginning and 774.1MB in the end (delta: -523.8MB). Peak memory consumption was 633.8MB. Max. memory is 8.0GB. [2023-03-31 23:54:35,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 136.5MB in the beginning and 136.3MB in the end (delta: 234.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 389.47ms. Allocated memory is still 287.3MB. Free memory was 236.3MB in the beginning and 217.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.39ms. Allocated memory is still 287.3MB. Free memory was 217.4MB in the beginning and 213.7MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1087.34ms. Allocated memory is still 287.3MB. Free memory was 213.7MB in the beginning and 251.3MB in the end (delta: -37.6MB). Peak memory consumption was 72.0MB. Max. memory is 8.0GB. * TraceAbstraction took 45397.06ms. Allocated memory was 287.3MB in the beginning and 1.0GB in the end (delta: 752.9MB). Free memory was 250.3MB in the beginning and 774.1MB in the end (delta: -523.8MB). Peak memory consumption was 633.8MB. 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 - PositiveResult [Line: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 205 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 11, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2739 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2669 mSDsluCounter, 4990 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3833 mSDsCounter, 1674 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10434 IncrementalHoareTripleChecker+Invalid, 12108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1674 mSolverCounterUnsat, 1157 mSDtfsCounter, 10434 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2214 GetRequests, 1831 SyntacticMatches, 53 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15411 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4610occurred in iteration=9, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1332 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 7764 PreInvPairs, 8128 NumberOfFragments, 2306 HoareAnnotationTreeSize, 7764 FomulaSimplifications, 53691 FormulaSimplificationTreeSizeReduction, 4.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 32639 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 2425 NumberOfCodeBlocks, 2347 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2890 ConstructedInterpolants, 0 QuantifiedInterpolants, 5872 SizeOfPredicates, 37 NumberOfNonLiveVariables, 3334 ConjunctsInSsa, 179 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 1969/2204 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1)) || 2 <= \old(waterLevel) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) < 1) || (((((methAndRunningLastTime == 0 && splverifierCounter == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && waterLevel <= 2) && !(0 == systemActive))) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(systemActive) == 1)) || 2 <= \old(waterLevel)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 2 <= waterLevel) && waterLevel <= 2) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:54:35,332 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...