/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:52:53,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:52:53,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:52:54,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:52:54,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:52:54,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:52:54,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:52:54,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:52:54,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:52:54,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:52:54,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:52:54,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:52:54,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:52:54,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:52:54,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:52:54,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:52:54,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:52:54,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:52:54,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:52:54,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:52:54,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:52:54,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:52:54,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:52:54,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:52:54,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:52:54,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:52:54,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:52:54,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:52:54,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:52:54,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:52:54,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:52:54,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:52:54,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:52:54,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:52:54,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:52:54,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:52:54,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:52:54,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:52:54,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:52:54,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:52:54,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:52:54,049 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 23:52:54,079 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:52:54,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:52:54,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:52:54,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:52:54,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:52:54,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:52:54,081 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:52:54,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:52:54,081 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:52:54,081 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:52:54,082 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:52:54,082 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:52:54,082 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:52:54,082 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:52:54,082 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:52:54,082 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:52:54,083 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:52:54,083 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:52:54,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:52:54,083 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:52:54,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:52:54,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:52:54,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:52:54,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:52:54,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:52:54,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:52:54,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:52:54,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:54,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:52:54,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:52:54,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:52:54,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:52:54,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:52:54,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:52:54,368 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:52:54,369 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:52:54,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2023-03-31 23:52:55,574 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:52:55,779 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:52:55,782 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2023-03-31 23:52:55,796 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0315612bf/3d06dafd21b34b578604c8cad3a0a6a4/FLAG0b3998fca [2023-03-31 23:52:55,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0315612bf/3d06dafd21b34b578604c8cad3a0a6a4 [2023-03-31 23:52:55,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:52:55,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:52:55,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:55,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:52:55,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:52:55,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:55" (1/1) ... [2023-03-31 23:52:55,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b146c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:55, skipping insertion in model container [2023-03-31 23:52:55,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:55" (1/1) ... [2023-03-31 23:52:55,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:52:55,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:52:56,025 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c[7760,7773] [2023-03-31 23:52:56,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:56,127 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:52:56,167 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c[7760,7773] [2023-03-31 23:52:56,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:56,209 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:52:56,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56 WrapperNode [2023-03-31 23:52:56,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:56,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:52:56,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:52:56,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:52:56,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:52:56,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:52:56,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:52:56,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:52:56,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (1/1) ... [2023-03-31 23:52:56,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:56,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:52:56,350 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 23:52:56,352 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 23:52:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:52:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:52:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:52:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:52:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:52:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:52:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:52:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:52:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:52:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:52:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:52:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:52:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:52:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:52:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:52:56,509 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:52:56,511 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:52:57,013 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:52:57,109 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:52:57,109 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:52:57,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:57 BoogieIcfgContainer [2023-03-31 23:52:57,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:52:57,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:52:57,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:52:57,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:52:57,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:52:55" (1/3) ... [2023-03-31 23:52:57,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8549b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:57, skipping insertion in model container [2023-03-31 23:52:57,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:56" (2/3) ... [2023-03-31 23:52:57,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8549b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:57, skipping insertion in model container [2023-03-31 23:52:57,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:57" (3/3) ... [2023-03-31 23:52:57,119 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2023-03-31 23:52:57,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:52:57,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:52:57,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:52:57,194 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;@10f5f035, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:52:57,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:52:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 65 states have internal predecessors, (70), 41 states have call successors, (41), 24 states have call predecessors, (41), 24 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-03-31 23:52:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:52:57,206 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:57,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:57,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:57,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash -210748073, now seen corresponding path program 1 times [2023-03-31 23:52:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672601039] [2023-03-31 23:52:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:57,426 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 23:52:57,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:57,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672601039] [2023-03-31 23:52:57,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672601039] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:57,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:57,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:52:57,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216698288] [2023-03-31 23:52:57,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:57,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:52:57,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:57,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:52:57,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:52:57,461 INFO L87 Difference]: Start difference. First operand has 123 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 65 states have internal predecessors, (70), 41 states have call successors, (41), 24 states have call predecessors, (41), 24 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:52:57,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:57,508 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2023-03-31 23:52:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:52:57,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-03-31 23:52:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:57,518 INFO L225 Difference]: With dead ends: 176 [2023-03-31 23:52:57,518 INFO L226 Difference]: Without dead ends: 90 [2023-03-31 23:52:57,521 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 23:52:57,524 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:57,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:52:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-03-31 23:52:57,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-03-31 23:52:57,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 53 states have internal predecessors, (56), 26 states have call successors, (26), 22 states have call predecessors, (26), 17 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-03-31 23:52:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2023-03-31 23:52:57,564 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 46 [2023-03-31 23:52:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:57,564 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2023-03-31 23:52:57,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:52:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2023-03-31 23:52:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:52:57,567 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:57,567 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 23:52:57,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:52:57,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:57,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash 482718023, now seen corresponding path program 1 times [2023-03-31 23:52:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:57,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612692074] [2023-03-31 23:52:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:57,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:57,702 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 23:52:57,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:57,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612692074] [2023-03-31 23:52:57,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612692074] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:57,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:57,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:52:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740786240] [2023-03-31 23:52:57,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:57,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:52:57,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:57,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:52:57,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:57,707 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:52:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:57,760 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2023-03-31 23:52:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:52:57,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-03-31 23:52:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:57,762 INFO L225 Difference]: With dead ends: 134 [2023-03-31 23:52:57,762 INFO L226 Difference]: Without dead ends: 82 [2023-03-31 23:52:57,763 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 23:52:57,764 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:57,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 150 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:52:57,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-03-31 23:52:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-03-31 23:52:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 48 states have internal predecessors, (50), 23 states have call successors, (23), 21 states have call predecessors, (23), 17 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-03-31 23:52:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2023-03-31 23:52:57,776 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 47 [2023-03-31 23:52:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:57,777 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2023-03-31 23:52:57,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:52:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2023-03-31 23:52:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-03-31 23:52:57,779 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:57,779 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] [2023-03-31 23:52:57,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:52:57,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:57,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:57,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1937288013, now seen corresponding path program 1 times [2023-03-31 23:52:57,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:57,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841035259] [2023-03-31 23:52:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:57,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:57,890 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 23:52:57,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:57,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841035259] [2023-03-31 23:52:57,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841035259] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:57,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:57,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:52:57,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618826044] [2023-03-31 23:52:57,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:57,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:52:57,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:57,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:52:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:57,893 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 23:52:57,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:57,950 INFO L93 Difference]: Finished difference Result 139 states and 160 transitions. [2023-03-31 23:52:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:52:57,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 49 [2023-03-31 23:52:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:57,954 INFO L225 Difference]: With dead ends: 139 [2023-03-31 23:52:57,955 INFO L226 Difference]: Without dead ends: 82 [2023-03-31 23:52:57,955 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 23:52:57,956 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 68 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:57,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 79 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:52:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-03-31 23:52:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-03-31 23:52:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 47 states have internal predecessors, (49), 23 states have call successors, (23), 21 states have call predecessors, (23), 17 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-03-31 23:52:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2023-03-31 23:52:57,978 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 49 [2023-03-31 23:52:57,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:57,978 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2023-03-31 23:52:57,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 23:52:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2023-03-31 23:52:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-03-31 23:52:57,980 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:57,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:57,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:52:57,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:57,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash -854825138, now seen corresponding path program 1 times [2023-03-31 23:52:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:57,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763937823] [2023-03-31 23:52:57,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:57,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:58,255 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 23:52:58,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:58,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763937823] [2023-03-31 23:52:58,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763937823] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:58,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:58,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:52:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030678570] [2023-03-31 23:52:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:58,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:52:58,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:58,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:52:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:52:58,259 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 23:52:58,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:58,400 INFO L93 Difference]: Finished difference Result 188 states and 217 transitions. [2023-03-31 23:52:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:52:58,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 57 [2023-03-31 23:52:58,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:58,403 INFO L225 Difference]: With dead ends: 188 [2023-03-31 23:52:58,403 INFO L226 Difference]: Without dead ends: 131 [2023-03-31 23:52:58,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:52:58,405 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 51 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:58,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 324 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-03-31 23:52:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2023-03-31 23:52:58,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 66 states have (on average 1.196969696969697) internal successors, (79), 76 states have internal predecessors, (79), 34 states have call successors, (34), 30 states have call predecessors, (34), 26 states have return successors, (30), 26 states have call predecessors, (30), 30 states have call successors, (30) [2023-03-31 23:52:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 143 transitions. [2023-03-31 23:52:58,424 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 143 transitions. Word has length 57 [2023-03-31 23:52:58,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:58,425 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 143 transitions. [2023-03-31 23:52:58,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 23:52:58,425 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 143 transitions. [2023-03-31 23:52:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-03-31 23:52:58,427 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:58,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:52:58,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:52:58,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:58,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:58,428 INFO L85 PathProgramCache]: Analyzing trace with hash -972947543, now seen corresponding path program 1 times [2023-03-31 23:52:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:58,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350007892] [2023-03-31 23:52:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:58,584 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 23:52:58,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:58,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350007892] [2023-03-31 23:52:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350007892] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:52:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833813535] [2023-03-31 23:52:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:58,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:52:58,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:52:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:52:58,589 INFO L87 Difference]: Start difference. First operand 127 states and 143 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 23:52:58,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:58,767 INFO L93 Difference]: Finished difference Result 199 states and 230 transitions. [2023-03-31 23:52:58,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:52:58,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 60 [2023-03-31 23:52:58,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:58,768 INFO L225 Difference]: With dead ends: 199 [2023-03-31 23:52:58,768 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:52:58,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-03-31 23:52:58,779 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 54 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:58,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 106 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:52:58,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:52:58,781 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 23:52:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:52:58,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2023-03-31 23:52:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:58,782 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:52:58,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 23:52:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:52:58,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:52:58,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:52:58,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:52:58,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:52:59,359 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 612) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point L602-2(lines 602 623) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point L624(lines 601 625) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 577 632) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 577 632) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 669) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 633 692) no Hoare annotation was computed. [2023-03-31 23:52:59,360 INFO L899 garLoopResultBuilder]: For program point L659-2(lines 659 684) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point L685(lines 658 686) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 633 692) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 633 692) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point L678(line 678) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point L678-1(line 678) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 425 433) no Hoare annotation was computed. [2023-03-31 23:52:59,361 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 425 433) the Hoare annotation is: true [2023-03-31 23:52:59,361 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 132 154) no Hoare annotation was computed. [2023-03-31 23:52:59,362 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,362 INFO L895 garLoopResultBuilder]: At program point L144-1(line 144) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,362 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-03-31 23:52:59,362 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 142 149) no Hoare annotation was computed. [2023-03-31 23:52:59,362 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-03-31 23:52:59,362 INFO L895 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,362 INFO L895 garLoopResultBuilder]: At program point L138(line 138) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,363 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 154) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,363 INFO L895 garLoopResultBuilder]: At program point L138-1(line 138) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 85 108) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-03-31 23:52:59,363 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 85 108) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 85 108) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-03-31 23:52:59,364 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 411 417) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 411 417) the Hoare annotation is: true [2023-03-31 23:52:59,365 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 844 889) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 844 889) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L895 garLoopResultBuilder]: At program point L321(line 321) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:52:59,365 INFO L899 garLoopResultBuilder]: For program point L321-1(lines 302 326) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L895 garLoopResultBuilder]: At program point L316(line 316) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:52:59,365 INFO L895 garLoopResultBuilder]: At program point L312(line 312) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:52:59,365 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 302 326) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 318) no Hoare annotation was computed. [2023-03-31 23:52:59,365 INFO L895 garLoopResultBuilder]: At program point L308(line 308) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:52:59,366 INFO L899 garLoopResultBuilder]: For program point L308-1(line 308) no Hoare annotation was computed. [2023-03-31 23:52:59,366 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 323) no Hoare annotation was computed. [2023-03-31 23:52:59,366 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 302 326) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:52:59,366 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 294 300) no Hoare annotation was computed. [2023-03-31 23:52:59,366 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 294 300) the Hoare annotation is: true [2023-03-31 23:52:59,366 INFO L895 garLoopResultBuilder]: At program point L254(lines 207 255) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2023-03-31 23:52:59,366 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 198 261) no Hoare annotation was computed. [2023-03-31 23:52:59,366 INFO L895 garLoopResultBuilder]: At program point L244-2(lines 238 249) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2023-03-31 23:52:59,366 INFO L899 garLoopResultBuilder]: For program point L209(lines 208 253) no Hoare annotation was computed. [2023-03-31 23:52:59,367 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 198 261) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,367 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2023-03-31 23:52:59,367 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 234) no Hoare annotation was computed. [2023-03-31 23:52:59,367 INFO L899 garLoopResultBuilder]: For program point L228-1(lines 228 234) no Hoare annotation was computed. [2023-03-31 23:52:59,367 INFO L895 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2023-03-31 23:52:59,367 INFO L895 garLoopResultBuilder]: At program point L251(lines 208 253) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2023-03-31 23:52:59,367 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 224) no Hoare annotation was computed. [2023-03-31 23:52:59,367 INFO L899 garLoopResultBuilder]: For program point L218-1(lines 218 224) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 198 261) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= ~pumpRunning~0 0))) [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 187) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 190) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L895 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 193) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L899 garLoopResultBuilder]: For program point L176-1(lines 168 196) no Hoare annotation was computed. [2023-03-31 23:52:59,368 INFO L902 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: true [2023-03-31 23:52:59,373 INFO L899 garLoopResultBuilder]: For program point L174-1(line 174) no Hoare annotation was computed. [2023-03-31 23:52:59,374 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 168 196) the Hoare annotation is: true [2023-03-31 23:52:59,374 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 168 196) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 160 167) the Hoare annotation is: true [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 160 167) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 483 505) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 483 505) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 327 334) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 327 334) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 506 514) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 506 514) no Hoare annotation was computed. [2023-03-31 23:52:59,375 INFO L895 garLoopResultBuilder]: At program point L283(line 283) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:52:59,375 INFO L895 garLoopResultBuilder]: At program point L281(lines 281 287) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:52:59,376 INFO L895 garLoopResultBuilder]: At program point L276(line 276) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0))) [2023-03-31 23:52:59,376 INFO L899 garLoopResultBuilder]: For program point L274(lines 273 292) no Hoare annotation was computed. [2023-03-31 23:52:59,376 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 270 293) no Hoare annotation was computed. [2023-03-31 23:52:59,377 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 270 293) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:52:59,377 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 270 293) no Hoare annotation was computed. [2023-03-31 23:52:59,377 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-03-31 23:52:59,377 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-03-31 23:52:59,377 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-03-31 23:52:59,377 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-03-31 23:52:59,377 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-03-31 23:52:59,377 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2023-03-31 23:52:59,378 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-03-31 23:52:59,378 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-03-31 23:52:59,378 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-03-31 23:52:59,378 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 474 482) the Hoare annotation is: true [2023-03-31 23:52:59,378 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 474 482) no Hoare annotation was computed. [2023-03-31 23:52:59,378 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 438 449) no Hoare annotation was computed. [2023-03-31 23:52:59,378 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 438 449) the Hoare annotation is: true [2023-03-31 23:52:59,378 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 450 461) no Hoare annotation was computed. [2023-03-31 23:52:59,378 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 450 461) the Hoare annotation is: true [2023-03-31 23:52:59,379 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 516 523) the Hoare annotation is: true [2023-03-31 23:52:59,379 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 520) no Hoare annotation was computed. [2023-03-31 23:52:59,379 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 516 523) no Hoare annotation was computed. [2023-03-31 23:52:59,379 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 418 424) the Hoare annotation is: true [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 418 424) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 354 362) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 354 362) the Hoare annotation is: true [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 363 398) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point L393-1(line 393) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 363 398) no Hoare annotation was computed. [2023-03-31 23:52:59,380 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 531 576) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 531 576) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L895 garLoopResultBuilder]: At program point L123(line 123) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 118 128) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 118 128) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 118 128) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L902 garLoopResultBuilder]: At program point L348(line 348) the Hoare annotation is: true [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point L348-1(line 348) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 343 353) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 343 353) the Hoare annotation is: true [2023-03-31 23:52:59,381 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 335 342) no Hoare annotation was computed. [2023-03-31 23:52:59,381 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 335 342) the Hoare annotation is: true [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 798 843) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 798 843) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 401 410) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 401 410) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point L760(line 760) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point L760-1(line 760) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 723) no Hoare annotation was computed. [2023-03-31 23:52:59,382 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 695 797) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L744-2(lines 744 764) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 695 797) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L765(lines 743 766) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L724(lines 724 740) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 695 797) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L745(lines 744 764) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L776(line 776) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L776-1(line 776) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 782) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-03-31 23:52:59,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:59,383 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 462 473) the Hoare annotation is: true [2023-03-31 23:52:59,384 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 462 473) no Hoare annotation was computed. [2023-03-31 23:52:59,384 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:59,384 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:52:59,384 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 109 115) no Hoare annotation was computed. [2023-03-31 23:52:59,385 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 109 115) the Hoare annotation is: true [2023-03-31 23:52:59,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:59,385 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= 1 ~systemActive~0)) [2023-03-31 23:52:59,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:52:59,385 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:52:59,389 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-03-31 23:52:59,390 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:52:59,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:52:59 BoogieIcfgContainer [2023-03-31 23:52:59,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:52:59,407 INFO L158 Benchmark]: Toolchain (without parser) took 3590.69ms. Allocated memory was 183.5MB in the beginning and 262.1MB in the end (delta: 78.6MB). Free memory was 140.6MB in the beginning and 227.0MB in the end (delta: -86.3MB). Peak memory consumption was 112.7MB. Max. memory is 8.0GB. [2023-03-31 23:52:59,408 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:52:59,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.73ms. Allocated memory is still 183.5MB. Free memory was 140.6MB in the beginning and 122.5MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 23:52:59,411 INFO L158 Benchmark]: Boogie Preprocessor took 105.00ms. Allocated memory is still 183.5MB. Free memory was 122.5MB in the beginning and 119.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:52:59,411 INFO L158 Benchmark]: RCFGBuilder took 795.68ms. Allocated memory is still 183.5MB. Free memory was 119.3MB in the beginning and 125.3MB in the end (delta: -6.0MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. [2023-03-31 23:52:59,413 INFO L158 Benchmark]: TraceAbstraction took 2291.84ms. Allocated memory was 183.5MB in the beginning and 262.1MB in the end (delta: 78.6MB). Free memory was 124.2MB in the beginning and 227.0MB in the end (delta: -102.7MB). Peak memory consumption was 95.4MB. Max. memory is 8.0GB. [2023-03-31 23:52:59,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 393.73ms. Allocated memory is still 183.5MB. Free memory was 140.6MB in the beginning and 122.5MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 105.00ms. Allocated memory is still 183.5MB. Free memory was 122.5MB in the beginning and 119.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 795.68ms. Allocated memory is still 183.5MB. Free memory was 119.3MB in the beginning and 125.3MB in the end (delta: -6.0MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2291.84ms. Allocated memory was 183.5MB in the beginning and 262.1MB in the end (delta: 78.6MB). Free memory was 124.2MB in the beginning and 227.0MB in the end (delta: -102.7MB). Peak memory consumption was 95.4MB. 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: 520]: 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 37 procedures, 166 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 759 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 394 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 365 mSDtfsCounter, 322 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 50 LocationsWithAnnotation, 223 PreInvPairs, 235 NumberOfFragments, 402 HoareAnnotationTreeSize, 223 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 50 FomulaSimplificationsInter, 711 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: (systemActive < 1 || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || systemActive < 1) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:52:59,437 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...