/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_spec2_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:00:08,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:00:08,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:00:08,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:00:08,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:00:08,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:00:08,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:00:08,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:00:08,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:00:08,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:00:08,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:00:08,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:00:08,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:00:08,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:00:08,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:00:08,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:00:08,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:00:08,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:00:08,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:00:08,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:00:08,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:00:08,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:00:08,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:00:08,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:00:08,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:00:08,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:00:08,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:00:08,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:00:08,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:00:08,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:00:08,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:00:08,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:00:08,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:00:08,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:00:08,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:00:08,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:00:08,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:00:08,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:00:08,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:00:08,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:00:08,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:00:08,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:00:08,422 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:00:08,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:00:08,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:00:08,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:00:08,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:00:08,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:00:08,423 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:00:08,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:00:08,423 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:00:08,424 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:00:08,424 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:00:08,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:00:08,425 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:00:08,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:00:08,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:00:08,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:00:08,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:00:08,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:00:08,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:00:08,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:00:08,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:00:08,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:00:08,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:00:08,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:00:08,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:00:08,691 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:00:08,692 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:00:08,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2023-04-03 01:00:09,961 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:00:10,235 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:00:10,236 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c [2023-04-03 01:00:10,244 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72516b20f/15df245cc3424533a4974963df7dce3a/FLAG9f8f8b871 [2023-04-03 01:00:10,267 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72516b20f/15df245cc3424533a4974963df7dce3a [2023-04-03 01:00:10,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:00:10,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:00:10,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:00:10,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:00:10,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:00:10,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2758c27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10, skipping insertion in model container [2023-04-03 01:00:10,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:00:10,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:00:10,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2023-04-03 01:00:10,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:00:10,634 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:00:10,683 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product01.cil.c[17118,17131] [2023-04-03 01:00:10,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:00:10,700 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:00:10,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10 WrapperNode [2023-04-03 01:00:10,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:00:10,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:00:10,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:00:10,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:00:10,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:00:10,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:00:10,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:00:10,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:00:10,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (1/1) ... [2023-04-03 01:00:10,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:00:10,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:00:10,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:00:10,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:00:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:00:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:00:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:00:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:00:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:00:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:00:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:00:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:00:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:00:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:00:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:00:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:00:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:00:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:00:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:00:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:00:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:00:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-03 01:00:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:00:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:00:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:00:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:00:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:00:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:00:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:00:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:00:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:00:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:00:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:00:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:00:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:00:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:00:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:00:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:00:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:00:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:00:10,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:00:11,064 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:00:11,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:00:11,525 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:00:11,683 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:00:11,683 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:00:11,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:00:11 BoogieIcfgContainer [2023-04-03 01:00:11,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:00:11,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:00:11,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:00:11,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:00:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:00:10" (1/3) ... [2023-04-03 01:00:11,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2703b44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:00:11, skipping insertion in model container [2023-04-03 01:00:11,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:00:10" (2/3) ... [2023-04-03 01:00:11,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2703b44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:00:11, skipping insertion in model container [2023-04-03 01:00:11,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:00:11" (3/3) ... [2023-04-03 01:00:11,694 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product01.cil.c [2023-04-03 01:00:11,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:00:11,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:00:11,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:00:11,771 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;@16921f64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:00:11,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:00:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 56 states have internal predecessors, (61), 36 states have call successors, (36), 21 states have call predecessors, (36), 21 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-04-03 01:00:11,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:00:11,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:11,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:11,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:11,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1052007921, now seen corresponding path program 1 times [2023-04-03 01:00:11,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:11,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986372911] [2023-04-03 01:00:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:11,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:12,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986372911] [2023-04-03 01:00:12,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986372911] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:12,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:12,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:00:12,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279955151] [2023-04-03 01:00:12,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:12,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:00:12,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:00:12,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:00:12,088 INFO L87 Difference]: Start difference. First operand has 109 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 56 states have internal predecessors, (61), 36 states have call successors, (36), 21 states have call predecessors, (36), 21 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:00:12,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:12,149 INFO L93 Difference]: Finished difference Result 144 states and 175 transitions. [2023-04-03 01:00:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:00:12,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-04-03 01:00:12,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:12,176 INFO L225 Difference]: With dead ends: 144 [2023-04-03 01:00:12,177 INFO L226 Difference]: Without dead ends: 74 [2023-04-03 01:00:12,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:00:12,182 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:12,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:12,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-04-03 01:00:12,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-04-03 01:00:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 43 states have internal predecessors, (46), 21 states have call successors, (21), 19 states have call predecessors, (21), 14 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-04-03 01:00:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2023-04-03 01:00:12,235 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 46 [2023-04-03 01:00:12,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:12,237 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2023-04-03 01:00:12,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:00:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2023-04-03 01:00:12,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:00:12,243 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:12,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:12,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:00:12,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:12,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:12,246 INFO L85 PathProgramCache]: Analyzing trace with hash 522620829, now seen corresponding path program 1 times [2023-04-03 01:00:12,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:12,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839790062] [2023-04-03 01:00:12,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:12,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:12,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:12,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839790062] [2023-04-03 01:00:12,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839790062] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:12,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:12,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:00:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502986303] [2023-04-03 01:00:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:12,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:00:12,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:00:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,385 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:00:12,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:12,418 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2023-04-03 01:00:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:00:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-03 01:00:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:12,421 INFO L225 Difference]: With dead ends: 102 [2023-04-03 01:00:12,421 INFO L226 Difference]: Without dead ends: 66 [2023-04-03 01:00:12,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,423 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 7 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:12,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 114 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-04-03 01:00:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-04-03 01:00:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 38 states have internal predecessors, (40), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-03 01:00:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2023-04-03 01:00:12,436 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 47 [2023-04-03 01:00:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:12,437 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2023-04-03 01:00:12,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-03 01:00:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2023-04-03 01:00:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-03 01:00:12,438 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:12,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:12,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:00:12,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:12,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:12,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2123290292, now seen corresponding path program 1 times [2023-04-03 01:00:12,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:12,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669361013] [2023-04-03 01:00:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:12,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:12,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:12,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669361013] [2023-04-03 01:00:12,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669361013] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:12,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:12,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:00:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975821220] [2023-04-03 01:00:12,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:12,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:00:12,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:12,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:00:12,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,570 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:00:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:12,603 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2023-04-03 01:00:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:00:12,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 49 [2023-04-03 01:00:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:12,605 INFO L225 Difference]: With dead ends: 107 [2023-04-03 01:00:12,605 INFO L226 Difference]: Without dead ends: 66 [2023-04-03 01:00:12,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,606 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 48 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:12,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 61 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:12,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-04-03 01:00:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-04-03 01:00:12,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 37 states have internal predecessors, (39), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-03 01:00:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2023-04-03 01:00:12,614 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 49 [2023-04-03 01:00:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:12,615 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2023-04-03 01:00:12,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:00:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2023-04-03 01:00:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-03 01:00:12,616 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:12,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:12,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:00:12,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:12,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash 278208485, now seen corresponding path program 1 times [2023-04-03 01:00:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:12,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969552592] [2023-04-03 01:00:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:12,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:00:12,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969552592] [2023-04-03 01:00:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969552592] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:00:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:00:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:00:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552067700] [2023-04-03 01:00:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:12,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:00:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:12,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:00:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,799 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:00:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:12,839 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2023-04-03 01:00:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:00:12,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 52 [2023-04-03 01:00:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:12,842 INFO L225 Difference]: With dead ends: 107 [2023-04-03 01:00:12,842 INFO L226 Difference]: Without dead ends: 104 [2023-04-03 01:00:12,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:00:12,844 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 43 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:12,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:00:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-04-03 01:00:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2023-04-03 01:00:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 55 states have (on average 1.2) internal successors, (66), 62 states have internal predecessors, (66), 26 states have call successors, (26), 26 states have call predecessors, (26), 22 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2023-04-03 01:00:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2023-04-03 01:00:12,859 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 52 [2023-04-03 01:00:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:12,860 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2023-04-03 01:00:12,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:00:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2023-04-03 01:00:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-03 01:00:12,862 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:00:12,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:00:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:00:12,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:00:12,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:00:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1170387118, now seen corresponding path program 1 times [2023-04-03 01:00:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:00:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912206004] [2023-04-03 01:00:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:00:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:00:13,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:00:13,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912206004] [2023-04-03 01:00:13,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912206004] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:00:13,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249451371] [2023-04-03 01:00:13,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:00:13,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:00:13,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:00:13,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:00:13,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:00:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:00:13,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-03 01:00:13,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:00:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-03 01:00:13,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:00:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-03 01:00:13,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249451371] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 01:00:13,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 01:00:13,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2023-04-03 01:00:13,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007215374] [2023-04-03 01:00:13,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:00:13,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:00:13,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:00:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:00:13,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-03 01:00:13,823 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-03 01:00:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:00:13,921 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2023-04-03 01:00:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 01:00:13,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 81 [2023-04-03 01:00:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:00:13,922 INFO L225 Difference]: With dead ends: 140 [2023-04-03 01:00:13,922 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:00:13,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 158 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-03 01:00:13,924 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:00:13,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 177 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:00:13,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:00:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:00:13,926 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 01:00:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:00:13,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2023-04-03 01:00:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:00:13,926 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:00:13,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-03 01:00:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:00:13,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:00:13,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:00:13,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:00:14,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:00:14,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:00:14,852 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point L509(lines 486 510) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 462 517) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 462 517) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point L487-2(lines 487 508) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point L544-2(lines 544 569) no Hoare annotation was computed. [2023-04-03 01:00:14,853 INFO L899 garLoopResultBuilder]: For program point L570(lines 543 571) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 518 577) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point L563-1(line 563) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 518 577) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 518 577) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 554) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 262 270) no Hoare annotation was computed. [2023-04-03 01:00:14,854 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 262 270) the Hoare annotation is: true [2023-04-03 01:00:14,855 INFO L895 garLoopResultBuilder]: At program point L353(line 353) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,855 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,855 INFO L895 garLoopResultBuilder]: At program point L352-1(line 352) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,855 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 346 368) no Hoare annotation was computed. [2023-04-03 01:00:14,855 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 346 368) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,855 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,856 INFO L895 garLoopResultBuilder]: At program point L358-1(line 358) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 363) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L356-1(lines 356 363) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L354(line 354) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L321(line 321) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L320(line 320) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 303 326) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L319(line 319) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L318(line 318) no Hoare annotation was computed. [2023-04-03 01:00:14,856 INFO L899 garLoopResultBuilder]: For program point L317(line 317) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L316(line 316) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 303 326) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L315(line 315) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L314(line 314) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L312(line 312) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L311(line 311) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L310(line 310) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L309(line 309) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point L308(line 308) no Hoare annotation was computed. [2023-04-03 01:00:14,857 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 303 326) no Hoare annotation was computed. [2023-04-03 01:00:14,858 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 248 254) no Hoare annotation was computed. [2023-04-03 01:00:14,858 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 248 254) the Hoare annotation is: true [2023-04-03 01:00:14,858 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 729 774) no Hoare annotation was computed. [2023-04-03 01:00:14,858 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 729 774) no Hoare annotation was computed. [2023-04-03 01:00:14,858 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 86 92) no Hoare annotation was computed. [2023-04-03 01:00:14,858 INFO L902 garLoopResultBuilder]: At program point processEnvironmentFINAL(lines 86 92) the Hoare annotation is: true [2023-04-03 01:00:14,858 INFO L895 garLoopResultBuilder]: At program point L225(lines 178 226) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,858 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 169 232) no Hoare annotation was computed. [2023-04-03 01:00:14,859 INFO L895 garLoopResultBuilder]: At program point L215-2(lines 209 220) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0) (and (= ~methAndRunningLastTime~0 0) (= test_~splverifierCounter~0 0))) [2023-04-03 01:00:14,859 INFO L899 garLoopResultBuilder]: For program point L180(lines 179 224) no Hoare annotation was computed. [2023-04-03 01:00:14,859 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 169 232) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,859 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0) (and (= ~methAndRunningLastTime~0 0) (= test_~splverifierCounter~0 0))) [2023-04-03 01:00:14,859 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 205) no Hoare annotation was computed. [2023-04-03 01:00:14,859 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 199 205) no Hoare annotation was computed. [2023-04-03 01:00:14,859 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0) (and (= ~methAndRunningLastTime~0 0) (= test_~splverifierCounter~0 0))) [2023-04-03 01:00:14,860 INFO L895 garLoopResultBuilder]: At program point L222(lines 179 224) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0) (and (= ~methAndRunningLastTime~0 0) (= test_~splverifierCounter~0 0))) [2023-04-03 01:00:14,860 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 195) no Hoare annotation was computed. [2023-04-03 01:00:14,860 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 189 195) no Hoare annotation was computed. [2023-04-03 01:00:14,860 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 169 232) no Hoare annotation was computed. [2023-04-03 01:00:14,860 INFO L899 garLoopResultBuilder]: For program point L386-1(line 386) no Hoare annotation was computed. [2023-04-03 01:00:14,860 INFO L895 garLoopResultBuilder]: At program point L395(line 395) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,861 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 380 408) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,861 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 399) no Hoare annotation was computed. [2023-04-03 01:00:14,861 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 402) no Hoare annotation was computed. [2023-04-03 01:00:14,861 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point L390-1(line 390) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 380 408) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point L388-1(lines 380 408) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L895 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 824 846) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 824 846) no Hoare annotation was computed. [2023-04-03 01:00:14,862 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 372 379) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,862 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 372 379) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 93 100) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 93 100) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 847 855) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 847 855) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 815 823) the Hoare annotation is: true [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 815 823) no Hoare annotation was computed. [2023-04-03 01:00:14,863 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,863 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 62 85) no Hoare annotation was computed. [2023-04-03 01:00:14,864 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 85) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,864 INFO L895 garLoopResultBuilder]: At program point L73(lines 73 79) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,864 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 62 85) no Hoare annotation was computed. [2023-04-03 01:00:14,864 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,864 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 84) no Hoare annotation was computed. [2023-04-03 01:00:14,864 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 273 302) no Hoare annotation was computed. [2023-04-03 01:00:14,864 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point L287-1(lines 287 291) the Hoare annotation is: true [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point L283-2(lines 283 297) the Hoare annotation is: true [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: true [2023-04-03 01:00:14,865 INFO L899 garLoopResultBuilder]: For program point L279-1(line 279) no Hoare annotation was computed. [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point L298(lines 273 302) the Hoare annotation is: true [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 273 302) the Hoare annotation is: true [2023-04-03 01:00:14,865 INFO L899 garLoopResultBuilder]: For program point L294(line 294) no Hoare annotation was computed. [2023-04-03 01:00:14,865 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 779 790) no Hoare annotation was computed. [2023-04-03 01:00:14,865 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 779 790) the Hoare annotation is: true [2023-04-03 01:00:14,866 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 791 802) no Hoare annotation was computed. [2023-04-03 01:00:14,866 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 791 802) the Hoare annotation is: true [2023-04-03 01:00:14,866 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 857 864) the Hoare annotation is: true [2023-04-03 01:00:14,866 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 861) no Hoare annotation was computed. [2023-04-03 01:00:14,866 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 857 864) no Hoare annotation was computed. [2023-04-03 01:00:14,866 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 255 261) the Hoare annotation is: true [2023-04-03 01:00:14,866 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 255 261) no Hoare annotation was computed. [2023-04-03 01:00:14,866 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 120 128) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 120 128) the Hoare annotation is: true [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point L159(line 159) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 129 164) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 129 164) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 416 461) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 416 461) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 335 345) no Hoare annotation was computed. [2023-04-03 01:00:14,867 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 335 345) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 335 345) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (or (< ~systemActive~0 1) (< 0 ~pumpRunning~0) (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (< ~pumpRunning~0 0)) [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point L114-1(line 114) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 109 119) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 109 119) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 101 108) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 101 108) no Hoare annotation was computed. [2023-04-03 01:00:14,868 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 683 728) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 683 728) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 238 247) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 238 247) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 625) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L630(lines 629 649) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L661(line 661) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L661-1(line 661) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 667) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 580 682) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 580 682) no Hoare annotation was computed. [2023-04-03 01:00:14,869 INFO L899 garLoopResultBuilder]: For program point L645(line 645) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point L645-1(line 645) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point L629-2(lines 629 649) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 580 682) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point L650(lines 628 651) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 803 814) the Hoare annotation is: true [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 803 814) no Hoare annotation was computed. [2023-04-03 01:00:14,870 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:14,871 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:00:14,871 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 327 333) no Hoare annotation was computed. [2023-04-03 01:00:14,871 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 327 333) the Hoare annotation is: true [2023-04-03 01:00:14,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:00:14,871 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 1 ~systemActive~0) (<= 0 ~pumpRunning~0)) [2023-04-03 01:00:14,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:00:14,871 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:00:14,874 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 01:00:14,876 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:00:14,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:00:14 BoogieIcfgContainer [2023-04-03 01:00:14,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:00:14,896 INFO L158 Benchmark]: Toolchain (without parser) took 4623.06ms. Allocated memory is still 263.2MB. Free memory was 223.6MB in the beginning and 148.6MB in the end (delta: 75.0MB). Peak memory consumption was 76.6MB. Max. memory is 8.0GB. [2023-04-03 01:00:14,896 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 174.1MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:00:14,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.06ms. Allocated memory is still 263.2MB. Free memory was 223.1MB in the beginning and 205.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:00:14,897 INFO L158 Benchmark]: Boogie Preprocessor took 72.19ms. Allocated memory is still 263.2MB. Free memory was 205.3MB in the beginning and 202.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:00:14,897 INFO L158 Benchmark]: RCFGBuilder took 911.68ms. Allocated memory is still 263.2MB. Free memory was 202.1MB in the beginning and 146.0MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-04-03 01:00:14,897 INFO L158 Benchmark]: TraceAbstraction took 3205.37ms. Allocated memory is still 263.2MB. Free memory was 145.5MB in the beginning and 148.6MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:00:14,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 174.1MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 425.06ms. Allocated memory is still 263.2MB. Free memory was 223.1MB in the beginning and 205.3MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.19ms. Allocated memory is still 263.2MB. Free memory was 205.3MB in the beginning and 202.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 911.68ms. Allocated memory is still 263.2MB. Free memory was 202.1MB in the beginning and 146.0MB in the end (delta: 56.1MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3205.37ms. Allocated memory is still 263.2MB. Free memory was 145.5MB in the beginning and 148.6MB in the end (delta: -3.1MB). 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: 861]: 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 36 procedures, 156 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 530 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 316 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 169 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 130 PreInvPairs, 137 NumberOfFragments, 429 HoareAnnotationTreeSize, 130 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 42 FomulaSimplificationsInter, 430 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 1410 SizeOfPredicates, 3 NumberOfNonLiveVariables, 355 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 72/75 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: 283]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((systemActive < 1 || 0 < pumpRunning) || !(\old(methAndRunningLastTime) == 0)) || pumpRunning < 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((systemActive < 1 || 0 < pumpRunning) || !(\old(methAndRunningLastTime) == 0)) || pumpRunning < 0) || (methAndRunningLastTime == 0 && splverifierCounter == 0) RESULT: Ultimate proved your program to be correct! [2023-04-03 01:00:14,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...