/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 00:56:40,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 00:56:40,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 00:56:40,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 00:56:40,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 00:56:40,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 00:56:40,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 00:56:40,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 00:56:40,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 00:56:40,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 00:56:40,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 00:56:40,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 00:56:40,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 00:56:40,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 00:56:40,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 00:56:40,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 00:56:40,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 00:56:40,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 00:56:40,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 00:56:40,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 00:56:40,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 00:56:40,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 00:56:40,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 00:56:40,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 00:56:40,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 00:56:40,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 00:56:40,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 00:56:40,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 00:56:40,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 00:56:40,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 00:56:40,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 00:56:40,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 00:56:40,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 00:56:40,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 00:56:40,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 00:56:40,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 00:56:40,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 00:56:40,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 00:56:40,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 00:56:40,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 00:56:40,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 00:56:40,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 00:56:40,189 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 00:56:40,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 00:56:40,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 00:56:40,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 00:56:40,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 00:56:40,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 00:56:40,190 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 00:56:40,190 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 00:56:40,190 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 00:56:40,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 00:56:40,191 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 00:56:40,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 00:56:40,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 00:56:40,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 00:56:40,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:56:40,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 00:56:40,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 00:56:40,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 00:56:40,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 00:56:40,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 00:56:40,412 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 00:56:40,413 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 00:56:40,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c [2023-04-03 00:56:41,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 00:56:41,704 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 00:56:41,704 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c [2023-04-03 00:56:41,714 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72fa6ef7/53f23de0f17346f6a340fb9f9abe8db8/FLAGde4f8daac [2023-04-03 00:56:41,725 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d72fa6ef7/53f23de0f17346f6a340fb9f9abe8db8 [2023-04-03 00:56:41,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 00:56:41,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 00:56:41,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 00:56:41,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 00:56:41,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 00:56:41,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:56:41" (1/1) ... [2023-04-03 00:56:41,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdab88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:41, skipping insertion in model container [2023-04-03 00:56:41,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:56:41" (1/1) ... [2023-04-03 00:56:41,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 00:56:41,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 00:56:41,907 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c[7046,7059] [2023-04-03 00:56:41,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:56:41,963 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 00:56:41,983 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product01.cil.c[7046,7059] [2023-04-03 00:56:42,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:56:42,032 INFO L208 MainTranslator]: Completed translation [2023-04-03 00:56:42,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42 WrapperNode [2023-04-03 00:56:42,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 00:56:42,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 00:56:42,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 00:56:42,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 00:56:42,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 00:56:42,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 00:56:42,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 00:56:42,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 00:56:42,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (1/1) ... [2023-04-03 00:56:42,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:56:42,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 00:56:42,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 00:56:42,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 00:56:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 00:56:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 00:56:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 00:56:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 00:56:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 00:56:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 00:56:42,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 00:56:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 00:56:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 00:56:42,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 00:56:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 00:56:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 00:56:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 00:56:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 00:56:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 00:56:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 00:56:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 00:56:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 00:56:42,188 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 00:56:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 00:56:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 00:56:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 00:56:42,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 00:56:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 00:56:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 00:56:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 00:56:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 00:56:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 00:56:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 00:56:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 00:56:42,356 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 00:56:42,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 00:56:42,760 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 00:56:42,861 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 00:56:42,862 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 00:56:42,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:56:42 BoogieIcfgContainer [2023-04-03 00:56:42,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 00:56:42,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 00:56:42,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 00:56:42,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 00:56:42,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 12:56:41" (1/3) ... [2023-04-03 00:56:42,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d8b3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:56:42, skipping insertion in model container [2023-04-03 00:56:42,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:56:42" (2/3) ... [2023-04-03 00:56:42,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d8b3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:56:42, skipping insertion in model container [2023-04-03 00:56:42,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:56:42" (3/3) ... [2023-04-03 00:56:42,871 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product01.cil.c [2023-04-03 00:56:42,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 00:56:42,884 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 00:56:42,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 00:56:42,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34d9e2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 00:56:42,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 00:56:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 54 states have internal predecessors, (58), 35 states have call successors, (35), 20 states have call predecessors, (35), 20 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-04-03 00:56:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 00:56:42,956 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:56:42,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:56:42,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:56:42,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:56:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash 457963875, now seen corresponding path program 1 times [2023-04-03 00:56:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:56:42,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941712976] [2023-04-03 00:56:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:56:42,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:56:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:56:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:56:43,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:56:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941712976] [2023-04-03 00:56:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941712976] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:56:43,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:56:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 00:56:43,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67235616] [2023-04-03 00:56:43,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:56:43,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 00:56:43,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:56:43,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 00:56:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:56:43,180 INFO L87 Difference]: Start difference. First operand has 105 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 54 states have internal predecessors, (58), 35 states have call successors, (35), 20 states have call predecessors, (35), 20 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:56:43,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:56:43,236 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions. [2023-04-03 00:56:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 00:56:43,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 00:56:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:56:43,243 INFO L225 Difference]: With dead ends: 139 [2023-04-03 00:56:43,243 INFO L226 Difference]: Without dead ends: 70 [2023-04-03 00:56:43,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:56:43,248 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:56:43,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:56:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-04-03 00:56:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-04-03 00:56:43,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 41 states have internal predecessors, (43), 20 states have call successors, (20), 18 states have call predecessors, (20), 13 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-04-03 00:56:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2023-04-03 00:56:43,287 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 42 [2023-04-03 00:56:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:56:43,287 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2023-04-03 00:56:43,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:56:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2023-04-03 00:56:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 00:56:43,289 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:56:43,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:56:43,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 00:56:43,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:56:43,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:56:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 221190152, now seen corresponding path program 1 times [2023-04-03 00:56:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:56:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548929654] [2023-04-03 00:56:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:56:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:56:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:56:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:56:43,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:56:43,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548929654] [2023-04-03 00:56:43,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548929654] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:56:43,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:56:43,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:56:43,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843990503] [2023-04-03 00:56:43,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:56:43,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:56:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:56:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:56:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:56:43,402 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:56:43,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:56:43,432 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2023-04-03 00:56:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:56:43,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 00:56:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:56:43,434 INFO L225 Difference]: With dead ends: 97 [2023-04-03 00:56:43,434 INFO L226 Difference]: Without dead ends: 62 [2023-04-03 00:56:43,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:56:43,436 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 7 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:56:43,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 106 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:56:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-04-03 00:56:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-04-03 00:56:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 36 states have internal predecessors, (37), 17 states have call successors, (17), 17 states have call predecessors, (17), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-04-03 00:56:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2023-04-03 00:56:43,444 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 43 [2023-04-03 00:56:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:56:43,444 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2023-04-03 00:56:43,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:56:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2023-04-03 00:56:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-03 00:56:43,445 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:56:43,446 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] [2023-04-03 00:56:43,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 00:56:43,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:56:43,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:56:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -456034848, now seen corresponding path program 1 times [2023-04-03 00:56:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:56:43,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143027789] [2023-04-03 00:56:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:56:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:56:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:56:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:56:43,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:56:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143027789] [2023-04-03 00:56:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143027789] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:56:43,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:56:43,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:56:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148873322] [2023-04-03 00:56:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:56:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:56:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:56:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:56:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:56:43,532 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-03 00:56:43,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:56:43,559 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2023-04-03 00:56:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:56:43,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 45 [2023-04-03 00:56:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:56:43,563 INFO L225 Difference]: With dead ends: 102 [2023-04-03 00:56:43,563 INFO L226 Difference]: Without dead ends: 62 [2023-04-03 00:56:43,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:56:43,564 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 44 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:56:43,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 57 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:56:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-04-03 00:56:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-04-03 00:56:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 35 states have internal predecessors, (36), 17 states have call successors, (17), 17 states have call predecessors, (17), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-04-03 00:56:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2023-04-03 00:56:43,572 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 45 [2023-04-03 00:56:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:56:43,572 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2023-04-03 00:56:43,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-03 00:56:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2023-04-03 00:56:43,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-03 00:56:43,574 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:56:43,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:56:43,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 00:56:43,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:56:43,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:56:43,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1104926255, now seen corresponding path program 1 times [2023-04-03 00:56:43,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:56:43,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311358075] [2023-04-03 00:56:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:56:43,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:56:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:56:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:56:43,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:56:43,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311358075] [2023-04-03 00:56:43,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311358075] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:56:43,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:56:43,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 00:56:43,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201124168] [2023-04-03 00:56:43,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:56:43,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 00:56:43,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:56:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 00:56:43,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 00:56:43,807 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 00:56:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:56:43,951 INFO L93 Difference]: Finished difference Result 135 states and 150 transitions. [2023-04-03 00:56:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 00:56:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 48 [2023-04-03 00:56:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:56:43,957 INFO L225 Difference]: With dead ends: 135 [2023-04-03 00:56:43,957 INFO L226 Difference]: Without dead ends: 95 [2023-04-03 00:56:43,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 00:56:43,963 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:56:43,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 229 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:56:43,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-04-03 00:56:43,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2023-04-03 00:56:43,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 54 states have internal predecessors, (56), 23 states have call successors, (23), 23 states have call predecessors, (23), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-04-03 00:56:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2023-04-03 00:56:43,983 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 48 [2023-04-03 00:56:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:56:43,983 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2023-04-03 00:56:43,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 00:56:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2023-04-03 00:56:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 00:56:43,985 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:56:43,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:56:43,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 00:56:43,985 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:56:43,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:56:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash -569537020, now seen corresponding path program 1 times [2023-04-03 00:56:43,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:56:43,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403946963] [2023-04-03 00:56:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:56:43,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:56:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:56:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:56:44,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:56:44,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403946963] [2023-04-03 00:56:44,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403946963] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:56:44,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:56:44,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 00:56:44,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928853145] [2023-04-03 00:56:44,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:56:44,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 00:56:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:56:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 00:56:44,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 00:56:44,111 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 00:56:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:56:44,199 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2023-04-03 00:56:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 00:56:44,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2023-04-03 00:56:44,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:56:44,201 INFO L225 Difference]: With dead ends: 153 [2023-04-03 00:56:44,201 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 00:56:44,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 00:56:44,209 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 30 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 00:56:44,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 171 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:56:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 00:56:44,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 00:56:44,211 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) [2023-04-03 00:56:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 00:56:44,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2023-04-03 00:56:44,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:56:44,213 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 00:56:44,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 00:56:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 00:56:44,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 00:56:44,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 00:56:44,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 00:56:44,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 00:56:44,503 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 00:56:44,503 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 00:56:44,503 INFO L899 garLoopResultBuilder]: For program point L568(lines 568 572) no Hoare annotation was computed. [2023-04-03 00:56:44,503 INFO L899 garLoopResultBuilder]: For program point L562-2(lines 562 583) no Hoare annotation was computed. [2023-04-03 00:56:44,504 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 537 592) no Hoare annotation was computed. [2023-04-03 00:56:44,504 INFO L899 garLoopResultBuilder]: For program point L584(lines 561 585) no Hoare annotation was computed. [2023-04-03 00:56:44,504 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 537 592) no Hoare annotation was computed. [2023-04-03 00:56:44,504 INFO L899 garLoopResultBuilder]: For program point L638(line 638) no Hoare annotation was computed. [2023-04-03 00:56:44,504 INFO L899 garLoopResultBuilder]: For program point L638-1(line 638) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 593 652) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 629) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 593 652) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 593 652) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point L619-2(lines 619 644) no Hoare annotation was computed. [2023-04-03 00:56:44,505 INFO L899 garLoopResultBuilder]: For program point L645(lines 618 646) no Hoare annotation was computed. [2023-04-03 00:56:44,506 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 263 271) no Hoare annotation was computed. [2023-04-03 00:56:44,506 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 263 271) the Hoare annotation is: true [2023-04-03 00:56:44,506 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 130 152) no Hoare annotation was computed. [2023-04-03 00:56:44,507 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,507 INFO L895 garLoopResultBuilder]: At program point L142-1(line 142) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,507 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-04-03 00:56:44,507 INFO L899 garLoopResultBuilder]: For program point L140-1(lines 140 147) no Hoare annotation was computed. [2023-04-03 00:56:44,508 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2023-04-03 00:56:44,508 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 130 152) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,508 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,508 INFO L895 garLoopResultBuilder]: At program point L136(line 136) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,508 INFO L895 garLoopResultBuilder]: At program point L136-1(line 136) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,508 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2023-04-03 00:56:44,508 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2023-04-03 00:56:44,509 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 85 108) no Hoare annotation was computed. [2023-04-03 00:56:44,509 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2023-04-03 00:56:44,511 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-04-03 00:56:44,511 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-04-03 00:56:44,511 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 85 108) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 85 108) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-04-03 00:56:44,512 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-04-03 00:56:44,513 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 249 255) no Hoare annotation was computed. [2023-04-03 00:56:44,514 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 249 255) the Hoare annotation is: true [2023-04-03 00:56:44,515 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 804 849) no Hoare annotation was computed. [2023-04-03 00:56:44,515 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 804 849) no Hoare annotation was computed. [2023-04-03 00:56:44,515 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 304 310) no Hoare annotation was computed. [2023-04-03 00:56:44,517 INFO L902 garLoopResultBuilder]: At program point processEnvironmentFINAL(lines 304 310) the Hoare annotation is: true [2023-04-03 00:56:44,518 INFO L895 garLoopResultBuilder]: At program point L440(lines 393 441) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0))) [2023-04-03 00:56:44,522 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 384 447) no Hoare annotation was computed. [2023-04-03 00:56:44,522 INFO L895 garLoopResultBuilder]: At program point L430-2(lines 424 435) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= test_~splverifierCounter~0 0)) [2023-04-03 00:56:44,522 INFO L899 garLoopResultBuilder]: For program point L395(lines 394 439) no Hoare annotation was computed. [2023-04-03 00:56:44,522 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 384 447) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,522 INFO L895 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= test_~splverifierCounter~0 0)) [2023-04-03 00:56:44,522 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 420) no Hoare annotation was computed. [2023-04-03 00:56:44,523 INFO L899 garLoopResultBuilder]: For program point L414-1(lines 414 420) no Hoare annotation was computed. [2023-04-03 00:56:44,523 INFO L895 garLoopResultBuilder]: At program point L406(line 406) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= test_~splverifierCounter~0 0)) [2023-04-03 00:56:44,523 INFO L895 garLoopResultBuilder]: At program point L437(lines 394 439) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= test_~splverifierCounter~0 0)) [2023-04-03 00:56:44,523 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 410) no Hoare annotation was computed. [2023-04-03 00:56:44,523 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 404 410) no Hoare annotation was computed. [2023-04-03 00:56:44,523 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 384 447) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 205 227) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 205 227) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 311 318) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 311 318) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 228 236) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 228 236) no Hoare annotation was computed. [2023-04-03 00:56:44,524 INFO L895 garLoopResultBuilder]: At program point L286(line 286) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= ~pumpRunning~0 0))) [2023-04-03 00:56:44,525 INFO L899 garLoopResultBuilder]: For program point L284(lines 283 302) no Hoare annotation was computed. [2023-04-03 00:56:44,525 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 280 303) no Hoare annotation was computed. [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 280 303) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 280 303) no Hoare annotation was computed. [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L291(lines 291 297) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-04-03 00:56:44,525 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-04-03 00:56:44,525 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2023-04-03 00:56:44,527 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-04-03 00:56:44,527 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-04-03 00:56:44,527 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-04-03 00:56:44,527 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 196 204) the Hoare annotation is: true [2023-04-03 00:56:44,527 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 196 204) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 160 171) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 160 171) the Hoare annotation is: true [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 172 183) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 183) the Hoare annotation is: true [2023-04-03 00:56:44,528 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 476 483) the Hoare annotation is: true [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 480) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 476 483) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 256 262) the Hoare annotation is: true [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 256 262) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 338 346) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 338 346) the Hoare annotation is: true [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point L377-1(line 377) no Hoare annotation was computed. [2023-04-03 00:56:44,528 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 347 382) no Hoare annotation was computed. [2023-04-03 00:56:44,529 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 347 382) no Hoare annotation was computed. [2023-04-03 00:56:44,529 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 491 536) no Hoare annotation was computed. [2023-04-03 00:56:44,529 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 491 536) no Hoare annotation was computed. [2023-04-03 00:56:44,529 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 117 126) no Hoare annotation was computed. [2023-04-03 00:56:44,530 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 117 126) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0)) [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 117 126) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point L332(line 332) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point L332-1(line 332) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 327 337) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 327 337) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 319 326) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 319 326) no Hoare annotation was computed. [2023-04-03 00:56:44,531 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 758 803) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 758 803) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 239 248) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 239 248) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point L704-2(lines 704 724) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point L725(lines 703 726) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 700) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 655 757) no Hoare annotation was computed. [2023-04-03 00:56:44,532 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 655 757) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L705(lines 704 724) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L736(line 736) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L736-1(line 736) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L701(lines 701 742) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 655 757) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L720(line 720) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L720-1(line 720) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 683) no Hoare annotation was computed. [2023-04-03 00:56:44,533 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 00:56:44,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 184 195) the Hoare annotation is: true [2023-04-03 00:56:44,534 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 184 195) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 109 115) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 109 115) the Hoare annotation is: true [2023-04-03 00:56:44,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:56:44,534 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= 1 ~systemActive~0)) [2023-04-03 00:56:44,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 00:56:44,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 00:56:44,536 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 450 474) no Hoare annotation was computed. [2023-04-03 00:56:44,536 INFO L895 garLoopResultBuilder]: At program point L464(line 464) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= ~pumpRunning~0 0))) [2023-04-03 00:56:44,536 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 468) no Hoare annotation was computed. [2023-04-03 00:56:44,537 INFO L895 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: (or (< ~systemActive~0 1) (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-03 00:56:44,537 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2023-04-03 00:56:44,537 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 471) no Hoare annotation was computed. [2023-04-03 00:56:44,537 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 450 474) the Hoare annotation is: true [2023-04-03 00:56:44,537 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 450 474) no Hoare annotation was computed. [2023-04-03 00:56:44,537 INFO L902 garLoopResultBuilder]: At program point L456(line 456) the Hoare annotation is: true [2023-04-03 00:56:44,537 INFO L899 garLoopResultBuilder]: For program point L456-1(line 456) no Hoare annotation was computed. [2023-04-03 00:56:44,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 00:56:44,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 00:56:44,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 12:56:44 BoogieIcfgContainer [2023-04-03 00:56:44,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 00:56:44,556 INFO L158 Benchmark]: Toolchain (without parser) took 2827.98ms. Allocated memory is still 276.8MB. Free memory was 230.5MB in the beginning and 160.8MB in the end (delta: 69.7MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. [2023-04-03 00:56:44,556 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 172.0MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 00:56:44,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.91ms. Allocated memory is still 276.8MB. Free memory was 230.5MB in the beginning and 212.1MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 00:56:44,557 INFO L158 Benchmark]: Boogie Preprocessor took 66.40ms. Allocated memory is still 276.8MB. Free memory was 212.1MB in the beginning and 209.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 00:56:44,557 INFO L158 Benchmark]: RCFGBuilder took 763.77ms. Allocated memory is still 276.8MB. Free memory was 209.0MB in the beginning and 152.9MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2023-04-03 00:56:44,557 INFO L158 Benchmark]: TraceAbstraction took 1690.03ms. Allocated memory is still 276.8MB. Free memory was 151.8MB in the beginning and 160.8MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 00:56:44,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 172.0MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.91ms. Allocated memory is still 276.8MB. Free memory was 230.5MB in the beginning and 212.1MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.40ms. Allocated memory is still 276.8MB. Free memory was 212.1MB in the beginning and 209.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 763.77ms. Allocated memory is still 276.8MB. Free memory was 209.0MB in the beginning and 152.9MB in the end (delta: 56.1MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1690.03ms. Allocated memory is still 276.8MB. Free memory was 151.8MB in the beginning and 160.8MB in the end (delta: -8.9MB). There was no memory consumed. 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: 480]: 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 35 procedures, 152 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 641 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 344 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 297 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 40 LocationsWithAnnotation, 151 PreInvPairs, 163 NumberOfFragments, 253 HoareAnnotationTreeSize, 151 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 40 FomulaSimplificationsInter, 594 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 390 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: 393]: Loop Invariant Derived loop invariant: (systemActive < 1 || !(\old(methaneLevelCritical) == 0)) || !(pumpRunning == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: ((systemActive < 1 || !(\old(methaneLevelCritical) == 0)) || !(pumpRunning == 0)) || splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2023-04-03 00:56:44,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...