/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_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:57:27,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:57:27,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:57:27,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:57:27,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:57:27,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:57:27,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:57:27,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:57:27,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:57:27,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:57:27,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:57:27,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:57:27,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:57:27,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:57:27,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:57:27,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:57:27,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:57:27,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:57:27,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:57:27,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:57:27,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:57:27,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:57:27,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:57:27,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:57:27,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:57:27,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:57:27,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:57:27,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:57:27,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:57:27,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:57:27,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:57:27,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:57:27,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:57:27,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:57:27,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:57:27,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:57:27,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:57:27,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:57:27,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:57:27,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:57:27,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:57:27,639 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 23:57:27,652 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:57:27,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:57:27,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:57:27,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:57:27,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:57:27,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:57:27,654 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:57:27,655 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:57:27,655 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:57:27,655 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:57:27,655 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:57:27,655 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:57:27,655 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:57:27,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:57:27,656 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:57:27,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:57:27,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:57:27,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:57:27,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:57:27,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:57:27,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:57:27,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:57:27,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:57:27,663 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:57:27,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:57:27,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:57:27,664 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:57:27,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:57:27,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:57:27,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:57:27,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:57:27,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:57:27,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:57:27,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:57:27,862 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:57:27,863 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:57:27,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2023-03-31 23:57:28,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:57:29,029 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:57:29,032 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2023-03-31 23:57:29,040 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41fd7be33/df5dbbffcfd7435395a9087490aac348/FLAG7230e9f41 [2023-03-31 23:57:29,050 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41fd7be33/df5dbbffcfd7435395a9087490aac348 [2023-03-31 23:57:29,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:57:29,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:57:29,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:57:29,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:57:29,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:57:29,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73dbea3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29, skipping insertion in model container [2023-03-31 23:57:29,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:57:29,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:57:29,354 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_spec4_product52.cil.c[18431,18444] [2023-03-31 23:57:29,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:29,368 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:57:29,431 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_spec4_product52.cil.c[18431,18444] [2023-03-31 23:57:29,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:29,443 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:57:29,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29 WrapperNode [2023-03-31 23:57:29,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:57:29,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:57:29,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:57:29,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:57:29,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:57:29,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:57:29,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:57:29,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:57:29,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (1/1) ... [2023-03-31 23:57:29,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:57:29,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:29,533 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 23:57:29,540 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 23:57:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:57:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:57:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:57:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:57:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:57:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:57:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:57:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:57:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:57:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:57:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:57:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:57:29,722 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:57:29,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:57:30,138 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:57:30,219 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:57:30,219 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:57:30,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:30 BoogieIcfgContainer [2023-03-31 23:57:30,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:57:30,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:57:30,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:57:30,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:57:30,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:57:29" (1/3) ... [2023-03-31 23:57:30,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e19b0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:30, skipping insertion in model container [2023-03-31 23:57:30,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:29" (2/3) ... [2023-03-31 23:57:30,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e19b0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:30, skipping insertion in model container [2023-03-31 23:57:30,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:30" (3/3) ... [2023-03-31 23:57:30,228 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2023-03-31 23:57:30,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:57:30,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:57:30,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:57:30,285 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;@1fb6061f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:57:30,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:57:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 83 states have internal predecessors, (87), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) [2023-03-31 23:57:30,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:57:30,296 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:30,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:30,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:30,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2062378310, now seen corresponding path program 1 times [2023-03-31 23:57:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:30,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675879911] [2023-03-31 23:57:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:30,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:30,482 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 23:57:30,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:30,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675879911] [2023-03-31 23:57:30,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675879911] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:30,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:30,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:57:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740478558] [2023-03-31 23:57:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:30,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:57:30,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:30,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:57:30,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:57:30,515 INFO L87 Difference]: Start difference. First operand has 149 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 83 states have internal predecessors, (87), 48 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 43 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:30,591 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2023-03-31 23:57:30,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:57:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-03-31 23:57:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:30,605 INFO L225 Difference]: With dead ends: 231 [2023-03-31 23:57:30,605 INFO L226 Difference]: Without dead ends: 116 [2023-03-31 23:57:30,609 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 23:57:30,613 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:30,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-03-31 23:57:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-03-31 23:57:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 71 states have internal predecessors, (73), 33 states have call successors, (33), 28 states have call predecessors, (33), 23 states have return successors, (28), 23 states have call predecessors, (28), 28 states have call successors, (28) [2023-03-31 23:57:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2023-03-31 23:57:30,645 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 42 [2023-03-31 23:57:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:30,645 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2023-03-31 23:57:30,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2023-03-31 23:57:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:57:30,647 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:30,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:57:30,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:30,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1682862263, now seen corresponding path program 1 times [2023-03-31 23:57:30,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:30,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065171571] [2023-03-31 23:57:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:30,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:30,756 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 23:57:30,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065171571] [2023-03-31 23:57:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065171571] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:30,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:57:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909929352] [2023-03-31 23:57:30,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:30,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:57:30,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:30,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:57:30,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:57:30,758 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:30,802 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2023-03-31 23:57:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:57:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-03-31 23:57:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:30,804 INFO L225 Difference]: With dead ends: 179 [2023-03-31 23:57:30,804 INFO L226 Difference]: Without dead ends: 108 [2023-03-31 23:57:30,805 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 23:57:30,806 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 11 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:30,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 197 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-03-31 23:57:30,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-03-31 23:57:30,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 66 states have internal predecessors, (67), 30 states have call successors, (30), 27 states have call predecessors, (30), 23 states have return successors, (26), 21 states have call predecessors, (26), 26 states have call successors, (26) [2023-03-31 23:57:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2023-03-31 23:57:30,815 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 43 [2023-03-31 23:57:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:30,815 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2023-03-31 23:57:30,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2023-03-31 23:57:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:57:30,816 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:30,816 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 23:57:30,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:57:30,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:30,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2066488329, now seen corresponding path program 1 times [2023-03-31 23:57:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:30,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085927124] [2023-03-31 23:57:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:30,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:30,971 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 23:57:30,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:30,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085927124] [2023-03-31 23:57:30,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085927124] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:30,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:30,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:57:30,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274906465] [2023-03-31 23:57:30,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:30,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:57:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:57:30,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:30,973 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 23:57:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:31,269 INFO L93 Difference]: Finished difference Result 325 states and 385 transitions. [2023-03-31 23:57:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:57:31,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2023-03-31 23:57:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:31,277 INFO L225 Difference]: With dead ends: 325 [2023-03-31 23:57:31,277 INFO L226 Difference]: Without dead ends: 239 [2023-03-31 23:57:31,282 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 23:57:31,285 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 197 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:31,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 510 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:57:31,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-03-31 23:57:31,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 227. [2023-03-31 23:57:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 120 states have (on average 1.275) internal successors, (153), 143 states have internal predecessors, (153), 59 states have call successors, (59), 53 states have call predecessors, (59), 47 states have return successors, (56), 43 states have call predecessors, (56), 55 states have call successors, (56) [2023-03-31 23:57:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 268 transitions. [2023-03-31 23:57:31,311 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 268 transitions. Word has length 47 [2023-03-31 23:57:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:31,311 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 268 transitions. [2023-03-31 23:57:31,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 23:57:31,311 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 268 transitions. [2023-03-31 23:57:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-03-31 23:57:31,313 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:31,313 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 23:57:31,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:57:31,313 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:31,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1785957185, now seen corresponding path program 1 times [2023-03-31 23:57:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:31,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322235628] [2023-03-31 23:57:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:31,495 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 23:57:31,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322235628] [2023-03-31 23:57:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322235628] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:31,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:57:31,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368049483] [2023-03-31 23:57:31,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:31,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:57:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:31,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:57:31,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:57:31,498 INFO L87 Difference]: Start difference. First operand 227 states and 268 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 23:57:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:31,630 INFO L93 Difference]: Finished difference Result 619 states and 757 transitions. [2023-03-31 23:57:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:57:31,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-03-31 23:57:31,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:31,635 INFO L225 Difference]: With dead ends: 619 [2023-03-31 23:57:31,635 INFO L226 Difference]: Without dead ends: 414 [2023-03-31 23:57:31,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:57:31,646 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 83 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:31,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 454 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-03-31 23:57:31,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 396. [2023-03-31 23:57:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 215 states have (on average 1.2790697674418605) internal successors, (275), 254 states have internal predecessors, (275), 100 states have call successors, (100), 88 states have call predecessors, (100), 80 states have return successors, (102), 72 states have call predecessors, (102), 96 states have call successors, (102) [2023-03-31 23:57:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 477 transitions. [2023-03-31 23:57:31,707 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 477 transitions. Word has length 51 [2023-03-31 23:57:31,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:31,707 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 477 transitions. [2023-03-31 23:57:31,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 23:57:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 477 transitions. [2023-03-31 23:57:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-03-31 23:57:31,715 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:31,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:31,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:57:31,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:31,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:31,715 INFO L85 PathProgramCache]: Analyzing trace with hash 839853698, now seen corresponding path program 1 times [2023-03-31 23:57:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:31,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052610017] [2023-03-31 23:57:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:31,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:31,836 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 23:57:31,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:31,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052610017] [2023-03-31 23:57:31,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052610017] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:31,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:31,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:57:31,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839692137] [2023-03-31 23:57:31,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:57:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:57:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:31,838 INFO L87 Difference]: Start difference. First operand 396 states and 477 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 23:57:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:32,134 INFO L93 Difference]: Finished difference Result 1004 states and 1327 transitions. [2023-03-31 23:57:32,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:57:32,134 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-03-31 23:57:32,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:32,138 INFO L225 Difference]: With dead ends: 1004 [2023-03-31 23:57:32,138 INFO L226 Difference]: Without dead ends: 630 [2023-03-31 23:57:32,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-03-31 23:57:32,140 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 141 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:32,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 278 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:57:32,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-03-31 23:57:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 536. [2023-03-31 23:57:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 306 states have (on average 1.2156862745098038) internal successors, (372), 335 states have internal predecessors, (372), 113 states have call successors, (113), 107 states have call predecessors, (113), 116 states have return successors, (154), 115 states have call predecessors, (154), 109 states have call successors, (154) [2023-03-31 23:57:32,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 639 transitions. [2023-03-31 23:57:32,191 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 639 transitions. Word has length 54 [2023-03-31 23:57:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:32,191 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 639 transitions. [2023-03-31 23:57:32,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 23:57:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 639 transitions. [2023-03-31 23:57:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-03-31 23:57:32,194 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:32,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:32,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:57:32,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:32,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash 308220487, now seen corresponding path program 1 times [2023-03-31 23:57:32,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:32,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936565574] [2023-03-31 23:57:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:32,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:32,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:32,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936565574] [2023-03-31 23:57:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936565574] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:32,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 23:57:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155579957] [2023-03-31 23:57:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:32,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:57:32,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:57:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-03-31 23:57:32,445 INFO L87 Difference]: Start difference. First operand 536 states and 639 transitions. Second operand has 14 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-03-31 23:57:32,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:32,677 INFO L93 Difference]: Finished difference Result 1059 states and 1307 transitions. [2023-03-31 23:57:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 23:57:32,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 72 [2023-03-31 23:57:32,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:32,680 INFO L225 Difference]: With dead ends: 1059 [2023-03-31 23:57:32,680 INFO L226 Difference]: Without dead ends: 743 [2023-03-31 23:57:32,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-03-31 23:57:32,682 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 221 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:32,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1064 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:32,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-03-31 23:57:32,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 714. [2023-03-31 23:57:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 418 states have (on average 1.2200956937799043) internal successors, (510), 454 states have internal predecessors, (510), 146 states have call successors, (146), 142 states have call predecessors, (146), 149 states have return successors, (204), 147 states have call predecessors, (204), 142 states have call successors, (204) [2023-03-31 23:57:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 860 transitions. [2023-03-31 23:57:32,727 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 860 transitions. Word has length 72 [2023-03-31 23:57:32,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:32,728 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 860 transitions. [2023-03-31 23:57:32,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-03-31 23:57:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 860 transitions. [2023-03-31 23:57:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-03-31 23:57:32,731 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:32,731 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2023-03-31 23:57:32,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 23:57:32,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:32,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1169085972, now seen corresponding path program 1 times [2023-03-31 23:57:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:32,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387771343] [2023-03-31 23:57:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:32,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:57:33,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:33,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387771343] [2023-03-31 23:57:33,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387771343] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:33,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868789580] [2023-03-31 23:57:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:33,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:33,139 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 23:57:33,140 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 23:57:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:33,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:57:33,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:33,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868789580] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:33,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:33,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-03-31 23:57:33,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254799445] [2023-03-31 23:57:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:33,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:57:33,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:57:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-03-31 23:57:33,562 INFO L87 Difference]: Start difference. First operand 714 states and 860 transitions. Second operand has 14 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-03-31 23:57:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:34,569 INFO L93 Difference]: Finished difference Result 1523 states and 1874 transitions. [2023-03-31 23:57:34,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:57:34,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 116 [2023-03-31 23:57:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:34,574 INFO L225 Difference]: With dead ends: 1523 [2023-03-31 23:57:34,574 INFO L226 Difference]: Without dead ends: 831 [2023-03-31 23:57:34,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-03-31 23:57:34,576 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 218 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:34,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 422 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 23:57:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-03-31 23:57:34,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 769. [2023-03-31 23:57:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 458 states have (on average 1.2139737991266375) internal successors, (556), 496 states have internal predecessors, (556), 160 states have call successors, (160), 158 states have call predecessors, (160), 150 states have return successors, (194), 148 states have call predecessors, (194), 156 states have call successors, (194) [2023-03-31 23:57:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 910 transitions. [2023-03-31 23:57:34,623 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 910 transitions. Word has length 116 [2023-03-31 23:57:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:34,623 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 910 transitions. [2023-03-31 23:57:34,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 6 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-03-31 23:57:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 910 transitions. [2023-03-31 23:57:34,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-03-31 23:57:34,625 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:34,625 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:34,644 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 23:57:34,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:34,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:34,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:34,844 INFO L85 PathProgramCache]: Analyzing trace with hash 146732209, now seen corresponding path program 1 times [2023-03-31 23:57:34,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:34,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804698256] [2023-03-31 23:57:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:34,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 23:57:35,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:35,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804698256] [2023-03-31 23:57:35,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804698256] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:35,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291893848] [2023-03-31 23:57:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:35,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:35,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:35,138 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 23:57:35,140 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 23:57:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:35,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:57:35,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 23:57:35,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 23:57:36,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291893848] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [18923110] [2023-03-31 23:57:36,180 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2023-03-31 23:57:36,180 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:36,184 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:36,187 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:36,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:36,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:36,330 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:36,487 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:36,501 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:36,503 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:36,505 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:36,990 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:57:36,998 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:57:37,051 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:57:37,076 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:57:37,080 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:57:37,085 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:57:37,086 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:57:37,089 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:37,091 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:37,092 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-03-31 23:57:37,136 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:57:37,227 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:37,244 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:37,247 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:57:37,250 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:57:37,251 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:57:37,266 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:57:37,268 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:39,876 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12711#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:57:39,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:57:39,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:39,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 33 [2023-03-31 23:57:39,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664891459] [2023-03-31 23:57:39,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:57:39,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-03-31 23:57:39,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-03-31 23:57:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=5478, Unknown=0, NotChecked=0, Total=6006 [2023-03-31 23:57:39,883 INFO L87 Difference]: Start difference. First operand 769 states and 910 transitions. Second operand has 33 states, 22 states have (on average 5.863636363636363) internal successors, (129), 27 states have internal predecessors, (129), 10 states have call successors, (56), 11 states have call predecessors, (56), 18 states have return successors, (50), 16 states have call predecessors, (50), 10 states have call successors, (50) [2023-03-31 23:57:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:42,229 INFO L93 Difference]: Finished difference Result 4279 states and 5887 transitions. [2023-03-31 23:57:42,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-03-31 23:57:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 22 states have (on average 5.863636363636363) internal successors, (129), 27 states have internal predecessors, (129), 10 states have call successors, (56), 11 states have call predecessors, (56), 18 states have return successors, (50), 16 states have call predecessors, (50), 10 states have call successors, (50) Word has length 119 [2023-03-31 23:57:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:42,245 INFO L225 Difference]: With dead ends: 4279 [2023-03-31 23:57:42,245 INFO L226 Difference]: Without dead ends: 3632 [2023-03-31 23:57:42,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 297 SyntacticMatches, 8 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5530 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1188, Invalid=11922, Unknown=0, NotChecked=0, Total=13110 [2023-03-31 23:57:42,250 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 1107 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 3568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:42,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 933 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 2626 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-03-31 23:57:42,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2023-03-31 23:57:42,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 2856. [2023-03-31 23:57:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 1688 states have (on average 1.2020142180094786) internal successors, (2029), 1822 states have internal predecessors, (2029), 611 states have call successors, (611), 583 states have call predecessors, (611), 556 states have return successors, (877), 564 states have call predecessors, (877), 607 states have call successors, (877) [2023-03-31 23:57:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3517 transitions. [2023-03-31 23:57:42,425 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3517 transitions. Word has length 119 [2023-03-31 23:57:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:42,425 INFO L495 AbstractCegarLoop]: Abstraction has 2856 states and 3517 transitions. [2023-03-31 23:57:42,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 22 states have (on average 5.863636363636363) internal successors, (129), 27 states have internal predecessors, (129), 10 states have call successors, (56), 11 states have call predecessors, (56), 18 states have return successors, (50), 16 states have call predecessors, (50), 10 states have call successors, (50) [2023-03-31 23:57:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3517 transitions. [2023-03-31 23:57:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-03-31 23:57:42,429 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:42,429 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:57:42,439 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 23:57:42,637 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 23:57:42,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:42,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:42,638 INFO L85 PathProgramCache]: Analyzing trace with hash 894294279, now seen corresponding path program 2 times [2023-03-31 23:57:42,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:42,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757260751] [2023-03-31 23:57:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:42,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 37 proven. 18 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-03-31 23:57:43,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757260751] [2023-03-31 23:57:43,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757260751] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127341794] [2023-03-31 23:57:43,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 23:57:43,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:43,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:43,166 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 23:57:43,168 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 23:57:43,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-03-31 23:57:43,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 23:57:43,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 55 conjunts are in the unsatisfiable core [2023-03-31 23:57:43,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 23:57:43,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:43,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127341794] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:43,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:43,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 27 [2023-03-31 23:57:43,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386878642] [2023-03-31 23:57:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:43,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:57:43,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:57:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2023-03-31 23:57:43,487 INFO L87 Difference]: Start difference. First operand 2856 states and 3517 transitions. Second operand has 14 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 3 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (31), 7 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 23:57:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:44,059 INFO L93 Difference]: Finished difference Result 5952 states and 7289 transitions. [2023-03-31 23:57:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-03-31 23:57:44,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 3 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (31), 7 states have call predecessors, (31), 3 states have call successors, (31) Word has length 166 [2023-03-31 23:57:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:44,070 INFO L225 Difference]: With dead ends: 5952 [2023-03-31 23:57:44,070 INFO L226 Difference]: Without dead ends: 2982 [2023-03-31 23:57:44,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=851, Unknown=0, NotChecked=0, Total=992 [2023-03-31 23:57:44,077 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 81 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:44,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1639 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:57:44,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2023-03-31 23:57:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2908. [2023-03-31 23:57:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 1721 states have (on average 1.1841952353282974) internal successors, (2038), 1849 states have internal predecessors, (2038), 615 states have call successors, (615), 587 states have call predecessors, (615), 571 states have return successors, (819), 581 states have call predecessors, (819), 611 states have call successors, (819) [2023-03-31 23:57:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3472 transitions. [2023-03-31 23:57:44,243 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3472 transitions. Word has length 166 [2023-03-31 23:57:44,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:44,244 INFO L495 AbstractCegarLoop]: Abstraction has 2908 states and 3472 transitions. [2023-03-31 23:57:44,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 3 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (31), 7 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 23:57:44,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3472 transitions. [2023-03-31 23:57:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-03-31 23:57:44,247 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:44,247 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:57:44,255 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 23:57:44,453 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 23:57:44,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:44,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:44,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1408639873, now seen corresponding path program 3 times [2023-03-31 23:57:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:44,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981854974] [2023-03-31 23:57:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:44,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:44,599 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-03-31 23:57:44,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:44,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981854974] [2023-03-31 23:57:44,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981854974] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:44,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144830023] [2023-03-31 23:57:44,599 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-31 23:57:44,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:44,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:44,600 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 23:57:44,602 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 23:57:44,693 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-31 23:57:44,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 23:57:44,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-31 23:57:44,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 72 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 23:57:44,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 50 proven. 16 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-03-31 23:57:45,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144830023] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:45,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811501642] [2023-03-31 23:57:45,019 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2023-03-31 23:57:45,020 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:45,020 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:45,020 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:45,020 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:45,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:45,108 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:45,167 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:45,173 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:45,174 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:45,176 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:45,523 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:57:45,529 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:57:45,560 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:57:45,582 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:57:45,584 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:57:45,592 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:57:45,593 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:57:45,596 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:45,598 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:45,599 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-03-31 23:57:45,639 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:57:45,693 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:45,708 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:45,711 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:57:45,714 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:57:45,715 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:57:45,728 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:57:45,731 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:47,801 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37296#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:57:47,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:57:47,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:47,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-03-31 23:57:47,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634817428] [2023-03-31 23:57:47,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:57:47,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 23:57:47,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:47,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 23:57:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2985, Unknown=0, NotChecked=0, Total=3306 [2023-03-31 23:57:47,803 INFO L87 Difference]: Start difference. First operand 2908 states and 3472 transitions. Second operand has 13 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 10 states have call successors, (52), 6 states have call predecessors, (52), 7 states have return successors, (51), 11 states have call predecessors, (51), 10 states have call successors, (51) [2023-03-31 23:57:48,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:48,422 INFO L93 Difference]: Finished difference Result 5716 states and 6906 transitions. [2023-03-31 23:57:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:57:48,423 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 10 states have call successors, (52), 6 states have call predecessors, (52), 7 states have return successors, (51), 11 states have call predecessors, (51), 10 states have call successors, (51) Word has length 166 [2023-03-31 23:57:48,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:48,433 INFO L225 Difference]: With dead ends: 5716 [2023-03-31 23:57:48,433 INFO L226 Difference]: Without dead ends: 2956 [2023-03-31 23:57:48,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 442 SyntacticMatches, 14 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=370, Invalid=3662, Unknown=0, NotChecked=0, Total=4032 [2023-03-31 23:57:48,440 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 372 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:48,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 533 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 23:57:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2023-03-31 23:57:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2766. [2023-03-31 23:57:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 1651 states have (on average 1.1671714112658995) internal successors, (1927), 1774 states have internal predecessors, (1927), 580 states have call successors, (580), 570 states have call predecessors, (580), 534 states have return successors, (681), 528 states have call predecessors, (681), 576 states have call successors, (681) [2023-03-31 23:57:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3188 transitions. [2023-03-31 23:57:48,593 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3188 transitions. Word has length 166 [2023-03-31 23:57:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:48,594 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 3188 transitions. [2023-03-31 23:57:48,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 10 states have call successors, (52), 6 states have call predecessors, (52), 7 states have return successors, (51), 11 states have call predecessors, (51), 10 states have call successors, (51) [2023-03-31 23:57:48,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3188 transitions. [2023-03-31 23:57:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-03-31 23:57:48,596 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:48,596 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-03-31 23:57:48,602 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 23:57:48,801 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 23:57:48,802 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:48,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1284714239, now seen corresponding path program 1 times [2023-03-31 23:57:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:48,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506740414] [2023-03-31 23:57:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 67 proven. 37 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-03-31 23:57:49,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:49,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506740414] [2023-03-31 23:57:49,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506740414] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:49,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041575908] [2023-03-31 23:57:49,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:49,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:49,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:49,385 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 23:57:49,387 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 23:57:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:49,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 56 conjunts are in the unsatisfiable core [2023-03-31 23:57:49,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:49,879 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 137 proven. 19 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-03-31 23:57:49,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-03-31 23:57:51,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041575908] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:51,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1814368986] [2023-03-31 23:57:51,146 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2023-03-31 23:57:51,146 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:51,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:51,147 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:51,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:51,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:51,244 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:51,318 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:51,324 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:51,760 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:57:51,763 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:57:51,787 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:57:51,790 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-03-31 23:57:51,853 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:57:51,928 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:51,941 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:51,944 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:57:51,946 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:57:51,947 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:57:51,959 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:57:51,962 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-03-31 23:57:51,975 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:51,977 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:51,978 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:57:52,006 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:57:52,007 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:57:52,009 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:57:52,011 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:52,012 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:52,013 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:54,990 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '50798#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:57:54,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:57:54,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:54,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 14] total 45 [2023-03-31 23:57:54,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564756791] [2023-03-31 23:57:54,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:57:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-03-31 23:57:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-03-31 23:57:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=7701, Unknown=0, NotChecked=0, Total=8190 [2023-03-31 23:57:54,994 INFO L87 Difference]: Start difference. First operand 2766 states and 3188 transitions. Second operand has 45 states, 32 states have (on average 5.71875) internal successors, (183), 33 states have internal predecessors, (183), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) [2023-03-31 23:57:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:56,735 INFO L93 Difference]: Finished difference Result 3356 states and 3914 transitions. [2023-03-31 23:57:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-03-31 23:57:56,735 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 32 states have (on average 5.71875) internal successors, (183), 33 states have internal predecessors, (183), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) Word has length 205 [2023-03-31 23:57:56,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:56,736 INFO L225 Difference]: With dead ends: 3356 [2023-03-31 23:57:56,736 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:57:56,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 543 SyntacticMatches, 14 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5675 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=901, Invalid=11981, Unknown=0, NotChecked=0, Total=12882 [2023-03-31 23:57:56,744 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 490 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:56,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 988 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-03-31 23:57:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:57:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:57:56,745 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 23:57:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:57:56,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 205 [2023-03-31 23:57:56,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:56,745 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:57:56,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 32 states have (on average 5.71875) internal successors, (183), 33 states have internal predecessors, (183), 12 states have call successors, (68), 9 states have call predecessors, (68), 23 states have return successors, (72), 23 states have call predecessors, (72), 12 states have call successors, (72) [2023-03-31 23:57:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:57:56,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:57:56,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:57:56,761 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 23:57:56,952 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 23:57:56,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point L536-2(lines 536 557) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point L558(lines 535 559) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 511 566) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 511 566) no Hoare annotation was computed. [2023-03-31 23:58:00,985 INFO L899 garLoopResultBuilder]: For program point L599(lines 599 603) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 567 626) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L593-2(lines 593 618) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L619(lines 592 620) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 567 626) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 567 626) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L612-1(line 612) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 949 957) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 949 957) the Hoare annotation is: true [2023-03-31 23:58:00,986 INFO L895 garLoopResultBuilder]: At program point L982(line 982) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< ~waterLevel~0 2))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0)) (or .cse1 (= 0 ~systemActive~0)))) [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 986) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 968 992) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L895 garLoopResultBuilder]: At program point L978(line 978) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< ~waterLevel~0 2))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0)) (or .cse1 (= 0 ~systemActive~0)))) [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L978-1(line 978) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 989) no Hoare annotation was computed. [2023-03-31 23:58:00,986 INFO L899 garLoopResultBuilder]: For program point L976-1(lines 968 992) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L902 garLoopResultBuilder]: At program point L974(line 974) the Hoare annotation is: true [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L974-1(line 974) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 968 992) the Hoare annotation is: true [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 900 922) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~8 1)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point L912-1(line 912) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~8 1)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 917) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L910-1(lines 910 917) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L908(line 908) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point L906(line 906) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 900 922) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L895 garLoopResultBuilder]: At program point L906-1(line 906) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L865(line 865) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L864(line 864) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 856 879) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L863(line 863) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L862(line 862) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point L861(line 861) no Hoare annotation was computed. [2023-03-31 23:58:00,987 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 856 879) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 856 879) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L873(line 873) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L872(line 872) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L871(line 871) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L870(line 870) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L869(line 869) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L868(line 868) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L867(line 867) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L866(line 866) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 375) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 365 379) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 365 379) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (and (= ~pumpRunning~0 0) .cse4)) (.cse2 (< 2 ~waterLevel~0)) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1) (or .cse2 .cse0 .cse3 .cse1) (or .cse2 (= |old(~systemActive~0)| 0) (not (= |old(~pumpRunning~0)| 1)) .cse3 (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)))))) [2023-03-31 23:58:00,988 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< 2 ~waterLevel~0)) (.cse2 (< ~waterLevel~0 2))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0)) (or .cse1 .cse0 .cse2) (or .cse1 (= |old(~systemActive~0)| 0) (not (= |old(~pumpRunning~0)| 1)) .cse2 (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1))))) [2023-03-31 23:58:00,988 INFO L902 garLoopResultBuilder]: At program point L353(line 353) the Hoare annotation is: true [2023-03-31 23:58:00,988 INFO L899 garLoopResultBuilder]: For program point L353-1(line 353) no Hoare annotation was computed. [2023-03-31 23:58:00,988 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 346 364) the Hoare annotation is: true [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 346 364) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 935 941) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 935 941) the Hoare annotation is: true [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 778 823) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 778 823) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 137 150) the Hoare annotation is: true [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 137 150) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L895 garLoopResultBuilder]: At program point L249(line 249) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 1)) (.cse3 (< 1 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 (not (= |old(~pumpRunning~0)| 1)) .cse4) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse4))) [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point L249-1(lines 230 254) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 230 254) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or (< 2 ~waterLevel~0) .cse3 (< ~waterLevel~0 2) .cse2))) [2023-03-31 23:58:00,989 INFO L895 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (and (= 1 processEnvironment_~tmp~1) (= ~pumpRunning~0 1)) .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or (< 2 ~waterLevel~0) .cse3 (< ~waterLevel~0 2) .cse2))) [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point L238(lines 238 246) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L895 garLoopResultBuilder]: At program point L236(line 236) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 (= ~pumpRunning~0 1)) (or .cse3 .cse0 .cse1 .cse2) (or (< 2 ~waterLevel~0) .cse3 (< ~waterLevel~0 2) .cse2))) [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point L236-1(line 236) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 251) no Hoare annotation was computed. [2023-03-31 23:58:00,989 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 230 254) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 1)) (.cse3 (< 1 ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 (not (= |old(~pumpRunning~0)| 1)) .cse4 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse4))) [2023-03-31 23:58:00,989 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 196 202) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 196 202) the Hoare annotation is: true [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L440(line 440) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 390 457) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L438-1(lines 430 445) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L401(lines 400 449) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L432(line 432) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 1)) (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 445) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 390 457) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 426) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L420-1(lines 420 426) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L447(lines 400 449) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L412(line 412) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L410(lines 410 416) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 410 416) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 390 457) no Hoare annotation was computed. [2023-03-31 23:58:00,990 INFO L895 garLoopResultBuilder]: At program point L450(lines 399 451) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,991 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 151 159) the Hoare annotation is: true [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 151 159) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 105 127) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 105 127) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 255 262) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 255 262) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0)) [2023-03-31 23:58:00,991 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 128 136) the Hoare annotation is: true [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 128 136) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 327 345) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L902 garLoopResultBuilder]: At program point L334(line 334) the Hoare annotation is: true [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point L334-1(line 334) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 327 345) the Hoare annotation is: true [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 96 104) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L895 garLoopResultBuilder]: At program point L185(line 185) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse4))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1) (or .cse0 .cse2 .cse1 .cse3) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse4 (and (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) (= ~pumpRunning~0 1)) .cse3)))) [2023-03-31 23:58:00,991 INFO L895 garLoopResultBuilder]: At program point L183(lines 183 189) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0)) (.cse7 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and .cse3 .cse8)) (.cse0 (not .cse7)) (.cse6 (and .cse7 .cse8 (not .cse4) (= ~pumpRunning~0 1))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse5 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (and .cse3 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse2 .cse5) (or .cse0 .cse6 .cse2 .cse4 .cse5)))) [2023-03-31 23:58:00,991 INFO L895 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (let ((.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) (= 0 ~systemActive~0) .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1))) (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1)))) [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point L176(lines 175 194) no Hoare annotation was computed. [2023-03-31 23:58:00,991 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 172 195) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 195) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse4)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (= 0 ~systemActive~0) .cse3 (and .cse4 (= ~pumpRunning~0 1))) (or .cse0 .cse1 .cse2 .cse3)))) [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 172 195) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 826 855) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point L851(lines 826 855) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point L847(line 847) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 826 855) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point L840(lines 840 844) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point L840-1(lines 840 844) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point L836-2(lines 836 850) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 60 71) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 60 71) the Hoare annotation is: (or (< |old(~waterLevel~0)| 2) (not (= ~pumpRunning~0 1)) (= |old(~waterLevel~0)| ~waterLevel~0) (= 0 ~systemActive~0) (< 2 |old(~waterLevel~0)|)) [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 380 387) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 380 387) the Hoare annotation is: true [2023-03-31 23:58:00,992 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1) (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1))) [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 204 228) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 204 228) no Hoare annotation was computed. [2023-03-31 23:58:00,992 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1 (and (= processEnvironment__wrappee__highWaterSensor_~tmp~0 0) (= ~pumpRunning~0 0))) (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1))) [2023-03-31 23:58:00,992 INFO L895 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1) (or (< 2 ~waterLevel~0) .cse0 (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~0 1)) (< ~waterLevel~0 2) .cse1))) [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 220) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L895 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point L210-1(line 210) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 225) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 204 228) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse1 (< |old(~waterLevel~0)| 2)) (.cse3 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (not (= ~pumpRunning~0 1)) .cse2 (= 0 ~systemActive~0) .cse3) (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse0 .cse2))) [2023-03-31 23:58:00,993 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 959 966) the Hoare annotation is: true [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 959 966) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 942 948) the Hoare annotation is: true [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 942 948) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 282 290) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 282 290) the Hoare annotation is: true [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point L321(line 321) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point L321-1(line 321) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 291 326) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 291 326) no Hoare annotation was computed. [2023-03-31 23:58:00,993 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 465 510) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 465 510) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 887 896) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 887 896) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 887 896) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 271 281) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 271 281) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L276(line 276) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L276-1(line 276) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 263 270) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 263 270) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 1))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1 .cse2) (or (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1 .cse2))) [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 732 777) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 732 777) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L694(line 694) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L694-1(line 694) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 657) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 629 731) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 629 731) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L678-2(lines 678 698) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L699(lines 677 700) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 674) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 629 731) no Hoare annotation was computed. [2023-03-31 23:58:00,994 INFO L899 garLoopResultBuilder]: For program point L679(lines 678 698) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point L710(line 710) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point L710-1(line 710) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 716) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 925 934) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 925 934) no Hoare annotation was computed. [2023-03-31 23:58:00,995 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 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 880 886) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 880 886) the Hoare annotation is: true [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-03-31 23:58:00,995 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:58:00,995 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:58:00,997 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:00,999 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:58:01,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:58:01 BoogieIcfgContainer [2023-03-31 23:58:01,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:58:01,013 INFO L158 Benchmark]: Toolchain (without parser) took 31960.73ms. Allocated memory was 273.7MB in the beginning and 692.1MB in the end (delta: 418.4MB). Free memory was 227.1MB in the beginning and 363.7MB in the end (delta: -136.6MB). Peak memory consumption was 408.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:01,013 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:58:01,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.14ms. Allocated memory is still 273.7MB. Free memory was 226.9MB in the beginning and 208.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:01,014 INFO L158 Benchmark]: Boogie Preprocessor took 59.32ms. Allocated memory is still 273.7MB. Free memory was 208.2MB in the beginning and 204.8MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:58:01,015 INFO L158 Benchmark]: RCFGBuilder took 718.09ms. Allocated memory is still 273.7MB. Free memory was 204.4MB in the beginning and 214.3MB in the end (delta: -9.8MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. [2023-03-31 23:58:01,017 INFO L158 Benchmark]: TraceAbstraction took 30788.64ms. Allocated memory was 273.7MB in the beginning and 692.1MB in the end (delta: 418.4MB). Free memory was 213.8MB in the beginning and 363.7MB in the end (delta: -149.9MB). Peak memory consumption was 394.8MB. Max. memory is 8.0GB. [2023-03-31 23:58:01,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 186.6MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 391.14ms. Allocated memory is still 273.7MB. Free memory was 226.9MB in the beginning and 208.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.32ms. Allocated memory is still 273.7MB. Free memory was 208.2MB in the beginning and 204.8MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 718.09ms. Allocated memory is still 273.7MB. Free memory was 204.4MB in the beginning and 214.3MB in the end (delta: -9.8MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. * TraceAbstraction took 30788.64ms. Allocated memory was 273.7MB in the beginning and 692.1MB in the end (delta: 418.4MB). Free memory was 213.8MB in the beginning and 363.7MB in the end (delta: -149.9MB). Peak memory consumption was 394.8MB. 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: 963]: 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 43 procedures, 194 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.7s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3037 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2921 mSDsluCounter, 7145 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6020 mSDsCounter, 1999 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9845 IncrementalHoareTripleChecker+Invalid, 11844 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1999 mSolverCounterUnsat, 1125 mSDtfsCounter, 9845 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2029 GetRequests, 1592 SyntacticMatches, 36 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13706 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2908occurred in iteration=9, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1255 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 5893 PreInvPairs, 6091 NumberOfFragments, 1567 HoareAnnotationTreeSize, 5893 FomulaSimplifications, 37230 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 63 FomulaSimplificationsInter, 14180 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 1853 NumberOfCodeBlocks, 1782 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2324 ConstructedInterpolants, 0 QuantifiedInterpolants, 5750 SizeOfPredicates, 39 NumberOfNonLiveVariables, 2408 ConjunctsInSsa, 201 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 1048/1201 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: 836]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 399]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || ((((splverifierCounter == 0 && 2 <= waterLevel) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1)) || !(\old(systemActive) == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 1) && 1 <= waterLevel)) || (((pumpRunning == 0 && splverifierCounter == 0) && 2 <= waterLevel) && waterLevel <= 2) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:58:01,050 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...