/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:57:42,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:57:42,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:57:42,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:57:42,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:57:42,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:57:42,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:57:42,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:57:42,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:57:42,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:57:42,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:57:42,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:57:42,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:57:42,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:57:42,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:57:42,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:57:42,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:57:42,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:57:42,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:57:42,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:57:42,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:57:42,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:57:42,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:57:42,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:57:42,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:57:42,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:57:42,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:57:42,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:57:42,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:57:42,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:57:42,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:57:42,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:57:42,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:57:42,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:57:42,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:57:42,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:57:42,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:57:42,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:57:42,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:57:42,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:57:42,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:57:42,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:57:42,438 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:57:42,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:57:42,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:57:42,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:57:42,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:57:42,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:57:42,439 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:57:42,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:57:42,439 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:57:42,439 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:57:42,440 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:57:42,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:57:42,440 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:57:42,440 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:57:42,440 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:57:42,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:57:42,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:57:42,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:57:42,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:57:42,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:57:42,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:57:42,443 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:57:42,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:57:42,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:57:42,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:57:42,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:57:42,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:57:42,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:57:42,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:57:42,636 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:57:42,636 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:57:42,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-03-31 23:57:43,622 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:57:43,872 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:57:43,873 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-03-31 23:57:43,883 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c7ebf94/e028936cec334a7ba808dee9fed3e175/FLAG666f74d72 [2023-03-31 23:57:43,896 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c7ebf94/e028936cec334a7ba808dee9fed3e175 [2023-03-31 23:57:43,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:57:43,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:57:43,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:57:43,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:57:43,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:57:43,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:57:43" (1/1) ... [2023-03-31 23:57:43,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d75673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:43, skipping insertion in model container [2023-03-31 23:57:43,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:57:43" (1/1) ... [2023-03-31 23:57:43,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:57:43,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:57:44,103 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2023-03-31 23:57:44,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:44,119 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:57:44,153 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2023-03-31 23:57:44,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:44,169 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:57:44,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44 WrapperNode [2023-03-31 23:57:44,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:57:44,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:57:44,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:57:44,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:57:44,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:57:44,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:57:44,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:57:44,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:57:44,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (1/1) ... [2023-03-31 23:57:44,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:57:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:44,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 23:57:44,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:57:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:57:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:57:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:57:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:57:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:57:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:57:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:57:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:57:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:57:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:57:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:57:44,389 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:57:44,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:57:44,714 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:57:44,837 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:57:44,837 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:57:44,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:44 BoogieIcfgContainer [2023-03-31 23:57:44,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:57:44,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:57:44,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:57:44,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:57:44,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:57:43" (1/3) ... [2023-03-31 23:57:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7357d9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:44, skipping insertion in model container [2023-03-31 23:57:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:44" (2/3) ... [2023-03-31 23:57:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7357d9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:44, skipping insertion in model container [2023-03-31 23:57:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:44" (3/3) ... [2023-03-31 23:57:44,844 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2023-03-31 23:57:44,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:57:44,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:57:44,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:57:44,894 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;@2aef6b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:57:44,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:57:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 85 states have internal predecessors, (89), 50 states have call successors, (50), 31 states have call predecessors, (50), 31 states have return successors, (50), 44 states have call predecessors, (50), 50 states have call successors, (50) [2023-03-31 23:57:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:57:44,906 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:44,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:44,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:44,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash 819559515, now seen corresponding path program 1 times [2023-03-31 23:57:44,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:44,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332429910] [2023-03-31 23:57:44,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:44,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:45,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332429910] [2023-03-31 23:57:45,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332429910] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:57:45,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076578283] [2023-03-31 23:57:45,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:45,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:57:45,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:45,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:57:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:57:45,116 INFO L87 Difference]: Start difference. First operand has 155 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 85 states have internal predecessors, (89), 50 states have call successors, (50), 31 states have call predecessors, (50), 31 states have return successors, (50), 44 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:45,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:45,158 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2023-03-31 23:57:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:57:45,160 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-03-31 23:57:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:45,169 INFO L225 Difference]: With dead ends: 243 [2023-03-31 23:57:45,169 INFO L226 Difference]: Without dead ends: 122 [2023-03-31 23:57:45,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:57:45,175 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:45,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-03-31 23:57:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-03-31 23:57:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 73 states have internal predecessors, (75), 35 states have call successors, (35), 29 states have call predecessors, (35), 24 states have return successors, (30), 24 states have call predecessors, (30), 30 states have call successors, (30) [2023-03-31 23:57:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2023-03-31 23:57:45,206 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 42 [2023-03-31 23:57:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:45,206 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2023-03-31 23:57:45,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2023-03-31 23:57:45,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:57:45,208 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:45,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:45,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:57:45,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:45,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1911607870, now seen corresponding path program 1 times [2023-03-31 23:57:45,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:45,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254679348] [2023-03-31 23:57:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:45,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:45,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:45,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254679348] [2023-03-31 23:57:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254679348] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:45,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:57:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243602886] [2023-03-31 23:57:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:45,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:57:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:45,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:57:45,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:57:45,274 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:45,319 INFO L93 Difference]: Finished difference Result 201 states and 231 transitions. [2023-03-31 23:57:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:57:45,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-03-31 23:57:45,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:45,322 INFO L225 Difference]: With dead ends: 201 [2023-03-31 23:57:45,322 INFO L226 Difference]: Without dead ends: 114 [2023-03-31 23:57:45,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:57:45,323 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 7 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:45,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:45,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-03-31 23:57:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-03-31 23:57:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 68 states have internal predecessors, (69), 32 states have call successors, (32), 28 states have call predecessors, (32), 24 states have return successors, (28), 22 states have call predecessors, (28), 28 states have call successors, (28) [2023-03-31 23:57:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2023-03-31 23:57:45,335 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 43 [2023-03-31 23:57:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:45,335 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2023-03-31 23:57:45,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2023-03-31 23:57:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-03-31 23:57:45,337 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:45,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:45,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:57:45,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:45,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1729481380, now seen corresponding path program 1 times [2023-03-31 23:57:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528664572] [2023-03-31 23:57:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:45,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:45,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:45,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528664572] [2023-03-31 23:57:45,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528664572] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:45,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:45,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:57:45,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858572726] [2023-03-31 23:57:45,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:45,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:57:45,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:45,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:57:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:45,463 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 23:57:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:45,648 INFO L93 Difference]: Finished difference Result 206 states and 237 transitions. [2023-03-31 23:57:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:57:45,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 45 [2023-03-31 23:57:45,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:45,655 INFO L225 Difference]: With dead ends: 206 [2023-03-31 23:57:45,655 INFO L226 Difference]: Without dead ends: 114 [2023-03-31 23:57:45,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:57:45,665 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 119 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:45,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 312 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-03-31 23:57:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-03-31 23:57:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 67 states have internal predecessors, (68), 32 states have call successors, (32), 28 states have call predecessors, (32), 24 states have return successors, (28), 22 states have call predecessors, (28), 28 states have call successors, (28) [2023-03-31 23:57:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2023-03-31 23:57:45,675 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 45 [2023-03-31 23:57:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:45,675 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2023-03-31 23:57:45,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-03-31 23:57:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2023-03-31 23:57:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-03-31 23:57:45,679 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:45,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:45,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:57:45,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:45,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:45,680 INFO L85 PathProgramCache]: Analyzing trace with hash -394126271, now seen corresponding path program 1 times [2023-03-31 23:57:45,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:45,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615200948] [2023-03-31 23:57:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:45,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:45,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:45,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615200948] [2023-03-31 23:57:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615200948] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:45,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:45,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:57:45,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546467957] [2023-03-31 23:57:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:45,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:57:45,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:57:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:57:45,749 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:57:45,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:45,991 INFO L93 Difference]: Finished difference Result 296 states and 347 transitions. [2023-03-31 23:57:45,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:57:45,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 62 [2023-03-31 23:57:45,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:45,993 INFO L225 Difference]: With dead ends: 296 [2023-03-31 23:57:45,993 INFO L226 Difference]: Without dead ends: 204 [2023-03-31 23:57:45,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:57:45,994 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 175 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:45,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 162 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:57:45,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-03-31 23:57:46,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 189. [2023-03-31 23:57:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 109 states have internal predecessors, (115), 43 states have call successors, (43), 41 states have call predecessors, (43), 44 states have return successors, (48), 43 states have call predecessors, (48), 39 states have call successors, (48) [2023-03-31 23:57:46,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 206 transitions. [2023-03-31 23:57:46,012 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 206 transitions. Word has length 62 [2023-03-31 23:57:46,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:46,012 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 206 transitions. [2023-03-31 23:57:46,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:57:46,013 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 206 transitions. [2023-03-31 23:57:46,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-03-31 23:57:46,014 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:46,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:46,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:57:46,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:46,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash 191484754, now seen corresponding path program 1 times [2023-03-31 23:57:46,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:46,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466150153] [2023-03-31 23:57:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:46,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:46,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466150153] [2023-03-31 23:57:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466150153] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:57:46,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597548747] [2023-03-31 23:57:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:46,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:57:46,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:57:46,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:46,271 INFO L87 Difference]: Start difference. First operand 189 states and 206 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-03-31 23:57:46,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:46,470 INFO L93 Difference]: Finished difference Result 449 states and 505 transitions. [2023-03-31 23:57:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 23:57:46,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 72 [2023-03-31 23:57:46,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:46,487 INFO L225 Difference]: With dead ends: 449 [2023-03-31 23:57:46,487 INFO L226 Difference]: Without dead ends: 282 [2023-03-31 23:57:46,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-03-31 23:57:46,488 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 95 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:46,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 579 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-03-31 23:57:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 270. [2023-03-31 23:57:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 149 states have (on average 1.1342281879194631) internal successors, (169), 159 states have internal predecessors, (169), 58 states have call successors, (58), 56 states have call predecessors, (58), 62 states have return successors, (70), 61 states have call predecessors, (70), 54 states have call successors, (70) [2023-03-31 23:57:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 297 transitions. [2023-03-31 23:57:46,532 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 297 transitions. Word has length 72 [2023-03-31 23:57:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:46,533 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 297 transitions. [2023-03-31 23:57:46,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2023-03-31 23:57:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 297 transitions. [2023-03-31 23:57:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-03-31 23:57:46,535 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:46,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:46,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:57:46,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:46,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:46,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1434721781, now seen corresponding path program 1 times [2023-03-31 23:57:46,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:46,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796347547] [2023-03-31 23:57:46,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:46,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:46,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:46,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796347547] [2023-03-31 23:57:46,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796347547] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:46,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:46,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 23:57:46,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678302279] [2023-03-31 23:57:46,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:46,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 23:57:46,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:46,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 23:57:46,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-03-31 23:57:46,862 INFO L87 Difference]: Start difference. First operand 270 states and 297 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-03-31 23:57:47,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:47,907 INFO L93 Difference]: Finished difference Result 705 states and 827 transitions. [2023-03-31 23:57:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 23:57:47,907 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 75 [2023-03-31 23:57:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:47,911 INFO L225 Difference]: With dead ends: 705 [2023-03-31 23:57:47,911 INFO L226 Difference]: Without dead ends: 538 [2023-03-31 23:57:47,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 23:57:47,915 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 415 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:47,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 351 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 23:57:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-03-31 23:57:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 474. [2023-03-31 23:57:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 268 states have (on average 1.1194029850746268) internal successors, (300), 284 states have internal predecessors, (300), 97 states have call successors, (97), 95 states have call predecessors, (97), 108 states have return successors, (124), 106 states have call predecessors, (124), 93 states have call successors, (124) [2023-03-31 23:57:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 521 transitions. [2023-03-31 23:57:47,968 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 521 transitions. Word has length 75 [2023-03-31 23:57:47,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:47,969 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 521 transitions. [2023-03-31 23:57:47,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-03-31 23:57:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 521 transitions. [2023-03-31 23:57:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-03-31 23:57:47,975 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:47,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:47,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 23:57:47,976 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:47,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:47,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1817020332, now seen corresponding path program 1 times [2023-03-31 23:57:47,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:47,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451888312] [2023-03-31 23:57:47,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:47,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 23:57:48,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:48,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451888312] [2023-03-31 23:57:48,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451888312] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:48,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:48,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:57:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341616336] [2023-03-31 23:57:48,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:48,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:57:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:57:48,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:57:48,070 INFO L87 Difference]: Start difference. First operand 474 states and 521 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 23:57:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:48,175 INFO L93 Difference]: Finished difference Result 483 states and 530 transitions. [2023-03-31 23:57:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:57:48,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2023-03-31 23:57:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:48,179 INFO L225 Difference]: With dead ends: 483 [2023-03-31 23:57:48,179 INFO L226 Difference]: Without dead ends: 480 [2023-03-31 23:57:48,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:57:48,180 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 81 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:48,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 516 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-03-31 23:57:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 474. [2023-03-31 23:57:48,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 268 states have (on average 1.1156716417910448) internal successors, (299), 284 states have internal predecessors, (299), 97 states have call successors, (97), 95 states have call predecessors, (97), 108 states have return successors, (124), 106 states have call predecessors, (124), 93 states have call successors, (124) [2023-03-31 23:57:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 520 transitions. [2023-03-31 23:57:48,210 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 520 transitions. Word has length 115 [2023-03-31 23:57:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:48,210 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 520 transitions. [2023-03-31 23:57:48,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-03-31 23:57:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 520 transitions. [2023-03-31 23:57:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-03-31 23:57:48,215 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:48,215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:48,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 23:57:48,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:48,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1255444544, now seen corresponding path program 1 times [2023-03-31 23:57:48,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:48,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556151380] [2023-03-31 23:57:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:48,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 23:57:48,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556151380] [2023-03-31 23:57:48,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556151380] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:48,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719007089] [2023-03-31 23:57:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:48,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:48,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:48,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:48,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:57:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:48,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-03-31 23:57:48,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:48,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:48,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719007089] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:48,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:48,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-03-31 23:57:48,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526669624] [2023-03-31 23:57:48,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:48,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:57:48,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:48,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:57:48,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:57:48,580 INFO L87 Difference]: Start difference. First operand 474 states and 520 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 23:57:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:48,630 INFO L93 Difference]: Finished difference Result 683 states and 755 transitions. [2023-03-31 23:57:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:57:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 122 [2023-03-31 23:57:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:48,631 INFO L225 Difference]: With dead ends: 683 [2023-03-31 23:57:48,632 INFO L226 Difference]: Without dead ends: 354 [2023-03-31 23:57:48,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:57:48,633 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 55 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:48,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 209 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:48,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-03-31 23:57:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 262. [2023-03-31 23:57:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 142 states have (on average 1.1056338028169015) internal successors, (157), 153 states have internal predecessors, (157), 57 states have call successors, (57), 55 states have call predecessors, (57), 62 states have return successors, (64), 60 states have call predecessors, (64), 53 states have call successors, (64) [2023-03-31 23:57:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 278 transitions. [2023-03-31 23:57:48,652 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 278 transitions. Word has length 122 [2023-03-31 23:57:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:48,653 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 278 transitions. [2023-03-31 23:57:48,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 23:57:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 278 transitions. [2023-03-31 23:57:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-03-31 23:57:48,654 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:48,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:48,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 23:57:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:48,859 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:48,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1702040102, now seen corresponding path program 1 times [2023-03-31 23:57:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960656598] [2023-03-31 23:57:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-03-31 23:57:49,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:49,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960656598] [2023-03-31 23:57:49,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960656598] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:49,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017691102] [2023-03-31 23:57:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:49,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:49,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:49,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:57:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:49,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 27 conjunts are in the unsatisfiable core [2023-03-31 23:57:49,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:49,638 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:49,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:49,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017691102] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:49,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:49,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2023-03-31 23:57:49,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151111148] [2023-03-31 23:57:49,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:49,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 23:57:49,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:49,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 23:57:49,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2023-03-31 23:57:49,640 INFO L87 Difference]: Start difference. First operand 262 states and 278 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 7 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (25), 6 states have call predecessors, (25), 7 states have call successors, (25) [2023-03-31 23:57:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:50,356 INFO L93 Difference]: Finished difference Result 549 states and 606 transitions. [2023-03-31 23:57:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-03-31 23:57:50,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 7 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (25), 6 states have call predecessors, (25), 7 states have call successors, (25) Word has length 131 [2023-03-31 23:57:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:50,357 INFO L225 Difference]: With dead ends: 549 [2023-03-31 23:57:50,357 INFO L226 Difference]: Without dead ends: 362 [2023-03-31 23:57:50,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2023-03-31 23:57:50,358 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 235 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:50,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 203 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 23:57:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-03-31 23:57:50,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 332. [2023-03-31 23:57:50,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 187 states have (on average 1.1016042780748663) internal successors, (206), 198 states have internal predecessors, (206), 73 states have call successors, (73), 72 states have call predecessors, (73), 71 states have return successors, (80), 69 states have call predecessors, (80), 69 states have call successors, (80) [2023-03-31 23:57:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 359 transitions. [2023-03-31 23:57:50,379 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 359 transitions. Word has length 131 [2023-03-31 23:57:50,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:50,379 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 359 transitions. [2023-03-31 23:57:50,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 7 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (25), 6 states have call predecessors, (25), 7 states have call successors, (25) [2023-03-31 23:57:50,379 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 359 transitions. [2023-03-31 23:57:50,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 23:57:50,380 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:50,380 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:50,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:57:50,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-03-31 23:57:50,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:50,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1884095907, now seen corresponding path program 1 times [2023-03-31 23:57:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:50,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891920808] [2023-03-31 23:57:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:50,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 23:57:50,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:50,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891920808] [2023-03-31 23:57:50,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891920808] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:50,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658312070] [2023-03-31 23:57:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:50,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:50,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:50,903 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:50,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 23:57:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:51,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:57:51,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-31 23:57:51,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-03-31 23:57:51,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658312070] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:51,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1136539609] [2023-03-31 23:57:51,785 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2023-03-31 23:57:51,786 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:51,788 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:51,791 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:51,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:51,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:51,926 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-03-31 23:57:51,995 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-03-31 23:57:52,001 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-03-31 23:57:52,364 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:57:52,371 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 42 for LOIs [2023-03-31 23:57:52,493 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 42 for LOIs [2023-03-31 23:57:52,509 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:57:52,568 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 26 for LOIs [2023-03-31 23:57:52,629 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:57:52,687 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:52,703 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:52,706 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:57:52,709 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:57:52,710 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:57:52,727 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:57:52,730 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 23 for LOIs [2023-03-31 23:57:52,763 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2023-03-31 23:57:52,765 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:52,766 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:52,767 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:57:52,791 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:57:52,792 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:57:52,794 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:57:52,795 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:52,797 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:52,798 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:55,587 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10846#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:57:55,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:57:55,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:55,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 17] total 36 [2023-03-31 23:57:55,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360803288] [2023-03-31 23:57:55,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:57:55,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-03-31 23:57:55,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:55,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-03-31 23:57:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=6588, Unknown=0, NotChecked=0, Total=7140 [2023-03-31 23:57:55,591 INFO L87 Difference]: Start difference. First operand 332 states and 359 transitions. Second operand has 36 states, 26 states have (on average 5.769230769230769) internal successors, (150), 29 states have internal predecessors, (150), 13 states have call successors, (69), 13 states have call predecessors, (69), 18 states have return successors, (59), 19 states have call predecessors, (59), 13 states have call successors, (59) [2023-03-31 23:58:00,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:00,156 INFO L93 Difference]: Finished difference Result 1447 states and 1724 transitions. [2023-03-31 23:58:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-03-31 23:58:00,157 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 26 states have (on average 5.769230769230769) internal successors, (150), 29 states have internal predecessors, (150), 13 states have call successors, (69), 13 states have call predecessors, (69), 18 states have return successors, (59), 19 states have call predecessors, (59), 13 states have call successors, (59) Word has length 134 [2023-03-31 23:58:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:00,161 INFO L225 Difference]: With dead ends: 1447 [2023-03-31 23:58:00,161 INFO L226 Difference]: Without dead ends: 1229 [2023-03-31 23:58:00,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 345 SyntacticMatches, 13 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11871 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2423, Invalid=24967, Unknown=0, NotChecked=0, Total=27390 [2023-03-31 23:58:00,167 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 1607 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 4691 mSolverCounterSat, 1431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 6122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1431 IncrementalHoareTripleChecker+Valid, 4691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:00,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 972 Invalid, 6122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1431 Valid, 4691 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-03-31 23:58:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-03-31 23:58:00,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 940. [2023-03-31 23:58:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 537 states have (on average 1.091247672253259) internal successors, (586), 564 states have internal predecessors, (586), 199 states have call successors, (199), 195 states have call predecessors, (199), 203 states have return successors, (240), 199 states have call predecessors, (240), 195 states have call successors, (240) [2023-03-31 23:58:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1025 transitions. [2023-03-31 23:58:00,244 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1025 transitions. Word has length 134 [2023-03-31 23:58:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:00,244 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1025 transitions. [2023-03-31 23:58:00,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 26 states have (on average 5.769230769230769) internal successors, (150), 29 states have internal predecessors, (150), 13 states have call successors, (69), 13 states have call predecessors, (69), 18 states have return successors, (59), 19 states have call predecessors, (59), 13 states have call successors, (59) [2023-03-31 23:58:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1025 transitions. [2023-03-31 23:58:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-03-31 23:58:00,246 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:00,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:00,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 23:58:00,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:00,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:00,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:00,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2073819445, now seen corresponding path program 2 times [2023-03-31 23:58:00,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:00,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297270741] [2023-03-31 23:58:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:00,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 35 proven. 20 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-03-31 23:58:00,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297270741] [2023-03-31 23:58:00,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297270741] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:00,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922130119] [2023-03-31 23:58:00,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 23:58:00,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:00,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:00,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:58:00,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 23:58:01,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-03-31 23:58:01,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 23:58:01,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 31 conjunts are in the unsatisfiable core [2023-03-31 23:58:01,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 23:58:01,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:58:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922130119] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:58:01,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:58:01,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-03-31 23:58:01,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725059793] [2023-03-31 23:58:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:58:01,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 23:58:01,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:01,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 23:58:01,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2023-03-31 23:58:01,456 INFO L87 Difference]: Start difference. First operand 940 states and 1025 transitions. Second operand has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) [2023-03-31 23:58:02,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:02,174 INFO L93 Difference]: Finished difference Result 1977 states and 2181 transitions. [2023-03-31 23:58:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 23:58:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) Word has length 193 [2023-03-31 23:58:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:02,185 INFO L225 Difference]: With dead ends: 1977 [2023-03-31 23:58:02,186 INFO L226 Difference]: Without dead ends: 1071 [2023-03-31 23:58:02,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2023-03-31 23:58:02,188 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 105 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:02,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 741 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 23:58:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-03-31 23:58:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1058. [2023-03-31 23:58:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 610 states have (on average 1.0901639344262295) internal successors, (665), 639 states have internal predecessors, (665), 225 states have call successors, (225), 220 states have call predecessors, (225), 222 states have return successors, (264), 220 states have call predecessors, (264), 221 states have call successors, (264) [2023-03-31 23:58:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1154 transitions. [2023-03-31 23:58:02,318 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1154 transitions. Word has length 193 [2023-03-31 23:58:02,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:02,318 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1154 transitions. [2023-03-31 23:58:02,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) [2023-03-31 23:58:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1154 transitions. [2023-03-31 23:58:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-03-31 23:58:02,320 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:58:02,320 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:02,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 23:58:02,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:02,525 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:58:02,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:58:02,525 INFO L85 PathProgramCache]: Analyzing trace with hash -585944153, now seen corresponding path program 1 times [2023-03-31 23:58:02,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:58:02,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948895856] [2023-03-31 23:58:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:02,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:58:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 62 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-03-31 23:58:02,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:58:02,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948895856] [2023-03-31 23:58:02,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948895856] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:58:02,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581119347] [2023-03-31 23:58:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:58:02,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:58:02,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:58:02,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:58:02,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 23:58:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:58:02,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 50 conjunts are in the unsatisfiable core [2023-03-31 23:58:02,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:58:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 64 proven. 122 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:58:03,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:58:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 70 proven. 7 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-03-31 23:58:04,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581119347] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:58:04,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [371579797] [2023-03-31 23:58:04,942 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2023-03-31 23:58:04,942 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:58:04,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:58:04,942 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:58:04,942 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:58:05,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:58:05,079 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-03-31 23:58:05,150 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-03-31 23:58:05,156 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-03-31 23:58:05,439 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:58:05,443 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 42 for LOIs [2023-03-31 23:58:05,503 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 42 for LOIs [2023-03-31 23:58:05,508 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:58:05,564 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 26 for LOIs [2023-03-31 23:58:05,618 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2023-03-31 23:58:05,666 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:58:05,680 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:58:05,683 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:58:05,686 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:58:05,687 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-03-31 23:58:05,698 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-03-31 23:58:05,701 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 23 for LOIs [2023-03-31 23:58:05,725 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2023-03-31 23:58:05,726 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-03-31 23:58:05,729 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:58:05,730 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:58:05,731 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:58:05,752 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:58:05,754 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:58:05,755 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:58:05,757 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:58:05,758 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:58:05,759 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:58:09,418 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20824#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:58:09,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:58:09,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:58:09,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 14] total 38 [2023-03-31 23:58:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144305734] [2023-03-31 23:58:09,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:58:09,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-03-31 23:58:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:58:09,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-03-31 23:58:09,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=7154, Unknown=0, NotChecked=0, Total=7656 [2023-03-31 23:58:09,421 INFO L87 Difference]: Start difference. First operand 1058 states and 1154 transitions. Second operand has 38 states, 27 states have (on average 7.481481481481482) internal successors, (202), 28 states have internal predecessors, (202), 11 states have call successors, (80), 10 states have call predecessors, (80), 21 states have return successors, (85), 19 states have call predecessors, (85), 11 states have call successors, (85) [2023-03-31 23:58:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:58:12,073 INFO L93 Difference]: Finished difference Result 1627 states and 1784 transitions. [2023-03-31 23:58:12,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-03-31 23:58:12,074 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 27 states have (on average 7.481481481481482) internal successors, (202), 28 states have internal predecessors, (202), 11 states have call successors, (80), 10 states have call predecessors, (80), 21 states have return successors, (85), 19 states have call predecessors, (85), 11 states have call successors, (85) Word has length 221 [2023-03-31 23:58:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:58:12,074 INFO L225 Difference]: With dead ends: 1627 [2023-03-31 23:58:12,074 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:58:12,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 576 SyntacticMatches, 24 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7658 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1349, Invalid=18111, Unknown=0, NotChecked=0, Total=19460 [2023-03-31 23:58:12,080 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 515 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 5446 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 5962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 5446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-03-31 23:58:12,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1012 Invalid, 5962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 5446 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-03-31 23:58:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:58:12,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:58:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:58:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:58:12,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2023-03-31 23:58:12,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:58:12,081 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:58:12,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 27 states have (on average 7.481481481481482) internal successors, (202), 28 states have internal predecessors, (202), 11 states have call successors, (80), 10 states have call predecessors, (80), 21 states have return successors, (85), 19 states have call predecessors, (85), 11 states have call successors, (85) [2023-03-31 23:58:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:58:12,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:58:12,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:58:12,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 23:58:12,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-03-31 23:58:12,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:58:16,682 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:58:16,682 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:58:16,682 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-03-31 23:58:16,682 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 746 754) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 746 754) the Hoare annotation is: true [2023-03-31 23:58:16,683 INFO L895 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< ~pumpRunning~0 1) .cse0 (not (= 2 ~waterLevel~0))) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0))) [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 869 893) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< ~pumpRunning~0 1) .cse0 (not (= 2 ~waterLevel~0))) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0))) [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L879-1(line 879) no Hoare annotation was computed. [2023-03-31 23:58:16,683 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 890) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L877-1(lines 869 893) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L902 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: true [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 869 893) the Hoare annotation is: true [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 967 989) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point L979(line 979) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and (= main_~tmp~10 1) (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point L979-1(line 979) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and (= main_~tmp~10 1) (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L977-1(lines 977 984) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L975(line 975) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point L974(line 974) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point L973(line 973) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point L973-1(line 973) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 967 989) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 926 949) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 926 949) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L944(line 944) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L943(line 943) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L942(line 942) no Hoare annotation was computed. [2023-03-31 23:58:16,684 INFO L899 garLoopResultBuilder]: For program point L941(line 941) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L939(line 939) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L938(line 938) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 926 949) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L937(line 937) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L936(line 936) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L935(line 935) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L933(line 933) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L902 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: true [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point L705-1(line 705) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 698 716) the Hoare annotation is: true [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 698 716) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 732 738) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 732 738) the Hoare annotation is: true [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 845 858) the Hoare annotation is: true [2023-03-31 23:58:16,685 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 845 858) no Hoare annotation was computed. [2023-03-31 23:58:16,685 INFO L895 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or (< ~waterLevel~0 1) .cse2 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3))) [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 582 606) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 582 606) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point L596(line 596) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2) (or .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 processEnvironment_~tmp~6)) .cse1 .cse4) (or .cse3 (= ~methaneLevelCritical~0 0) .cse1 .cse4))) [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (.cse3 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< |old(~pumpRunning~0)| 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2) (or .cse3 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse4) (or .cse3 .cse1 .cse4 (and (= ~methaneLevelCritical~0 processEnvironment_~tmp~6) (= ~pumpRunning~0 |old(~pumpRunning~0)|))))) [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 598) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2))) [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L588-1(line 588) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 603) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 582 606) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse2 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3))) [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 522 528) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 522 528) the Hoare annotation is: true [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse1 (= 2 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (<= 1 ~waterLevel~0) (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (<= ~waterLevel~0 1))))) (and (<= 1 ~pumpRunning~0) .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point L473(lines 430 475) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) (= 2 ~waterLevel~0) .cse0) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 420 483) no Hoare annotation was computed. [2023-03-31 23:58:16,686 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 420 483) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,687 INFO L895 garLoopResultBuilder]: At program point L476(lines 429 477) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,687 INFO L895 garLoopResultBuilder]: At program point L466-2(lines 460 471) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L895 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 420 483) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 859 867) the Hoare annotation is: true [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 859 867) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 813 835) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 813 835) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 607 614) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 607 614) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (= 2 ~waterLevel~0))) [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 679 697) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L902 garLoopResultBuilder]: At program point L686(line 686) the Hoare annotation is: true [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point L686-1(line 686) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 679 697) the Hoare annotation is: true [2023-03-31 23:58:16,687 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 836 844) the Hoare annotation is: true [2023-03-31 23:58:16,687 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 836 844) no Hoare annotation was computed. [2023-03-31 23:58:16,687 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 1)) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse0 (and .cse3 (= 2 ~waterLevel~0)) .cse1) (or (< 1 |old(~waterLevel~0)|) .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))))) [2023-03-31 23:58:16,688 INFO L895 garLoopResultBuilder]: At program point L509(lines 509 515) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (< |old(~pumpRunning~0)| 1) (and .cse2 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0))) (or (< 1 |old(~waterLevel~0)|) .cse3 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) (or .cse3 .cse0 (and (<= 1 ~pumpRunning~0) (= 2 ~waterLevel~0)) .cse1))) [2023-03-31 23:58:16,688 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 2 ~waterLevel~0)) .cse2 (< |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point L502(lines 501 520) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 521) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 498 521) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= 2 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse0 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse4 (< |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 498 521) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point L921(lines 896 925) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 804 812) the Hoare annotation is: true [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 804 812) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 768 779) no Hoare annotation was computed. [2023-03-31 23:58:16,688 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 768 779) the Hoare annotation is: (or (< ~pumpRunning~0 1) (= 2 ~waterLevel~0) (not (= 1 ~systemActive~0)) (not (= |old(~waterLevel~0)| 2))) [2023-03-31 23:58:16,688 INFO L895 garLoopResultBuilder]: At program point L544(line 544) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0))) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~4 0))))) [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point L540(line 540) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~4 1)) (not (= 2 ~waterLevel~0)) .cse2))) [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 530 554) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 546) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point L536(line 536) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3))) [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point L536-1(line 536) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 551) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 530 554) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3))) [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point L549(line 549) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2))) [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point L549-1(lines 530 554) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 780 791) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 780 791) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~waterLevel~0)| 2)))) (and (or (< ~pumpRunning~0 1) (= 2 ~waterLevel~0) .cse0 .cse1) (or (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse2 (not (= ~pumpRunning~0 0)))) (and (or (< 1 |old(~waterLevel~0)|) .cse2 .cse0 (< |old(~waterLevel~0)| (+ ~pumpRunning~0 1))) (or .cse2 .cse0 .cse1)))))) [2023-03-31 23:58:16,689 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 756 763) the Hoare annotation is: true [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 760) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 756 763) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3) (or (< ~waterLevel~0 1) .cse2 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 556 580) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 556 580) no Hoare annotation was computed. [2023-03-31 23:58:16,689 INFO L895 garLoopResultBuilder]: At program point L570(line 570) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2) (or (< ~waterLevel~0 1) .cse1 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,690 INFO L895 garLoopResultBuilder]: At program point L566(line 566) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or (< ~waterLevel~0 1) .cse0 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~5))) (or .cse1 .cse0 (not (= 2 ~waterLevel~0)) .cse2) (or .cse1 .cse0 (< 1 ~waterLevel~0) .cse2))) [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 572) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 (< 1 ~waterLevel~0) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse1 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)))) [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 577) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 556 580) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse2 (not (= ~methaneLevelCritical~0 0)) (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse3))) [2023-03-31 23:58:16,690 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 739 745) the Hoare annotation is: true [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 739 745) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 634 642) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 642) the Hoare annotation is: true [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point L673(line 673) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 643 678) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 643 678) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 957 966) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 957 966) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 957 966) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 623 633) no Hoare annotation was computed. [2023-03-31 23:58:16,690 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 623 633) the Hoare annotation is: true [2023-03-31 23:58:16,690 INFO L902 garLoopResultBuilder]: At program point L628(line 628) the Hoare annotation is: true [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L628-1(line 628) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 615 622) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 615 622) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (< |old(~pumpRunning~0)| 1)) [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 722 731) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 722 731) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:16,691 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:58:16,692 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 792 803) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse9 (< ~pumpRunning~0 1)) (.cse5 (not .cse3)) (.cse2 (not (= 2 ~waterLevel~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (< ~waterLevel~0 (+ ~pumpRunning~0 1))) (.cse8 (< 1 ~waterLevel~0)) (.cse4 (not .cse6))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse1 .cse7 .cse8) (or .cse9 .cse5 .cse6 .cse1 .cse2) (or .cse9 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse1 .cse2) (or .cse0 .cse1 .cse3 .cse7 .cse8 .cse4)))) [2023-03-31 23:58:16,692 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 792 803) no Hoare annotation was computed. [2023-03-31 23:58:16,692 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 950 956) no Hoare annotation was computed. [2023-03-31 23:58:16,692 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 950 956) the Hoare annotation is: true [2023-03-31 23:58:16,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:58:16,692 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-03-31 23:58:16,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:58:16,692 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:58:16,694 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:58:16,696 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:58:16,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:58:16 BoogieIcfgContainer [2023-03-31 23:58:16,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:58:16,704 INFO L158 Benchmark]: Toolchain (without parser) took 32805.25ms. Allocated memory was 201.3MB in the beginning and 712.0MB in the end (delta: 510.7MB). Free memory was 163.6MB in the beginning and 339.1MB in the end (delta: -175.5MB). Peak memory consumption was 426.7MB. Max. memory is 8.0GB. [2023-03-31 23:58:16,704 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 201.3MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:58:16,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.92ms. Allocated memory is still 201.3MB. Free memory was 163.6MB in the beginning and 144.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:16,705 INFO L158 Benchmark]: Boogie Preprocessor took 44.85ms. Allocated memory is still 201.3MB. Free memory was 144.7MB in the beginning and 141.4MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:58:16,705 INFO L158 Benchmark]: RCFGBuilder took 623.66ms. Allocated memory was 201.3MB in the beginning and 300.9MB in the end (delta: 99.6MB). Free memory was 141.4MB in the beginning and 252.3MB in the end (delta: -111.0MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2023-03-31 23:58:16,705 INFO L158 Benchmark]: TraceAbstraction took 31863.47ms. Allocated memory was 300.9MB in the beginning and 712.0MB in the end (delta: 411.0MB). Free memory was 251.8MB in the beginning and 339.1MB in the end (delta: -87.3MB). Peak memory consumption was 413.9MB. Max. memory is 8.0GB. [2023-03-31 23:58:16,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 201.3MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 269.92ms. Allocated memory is still 201.3MB. Free memory was 163.6MB in the beginning and 144.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.85ms. Allocated memory is still 201.3MB. Free memory was 144.7MB in the beginning and 141.4MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 623.66ms. Allocated memory was 201.3MB in the beginning and 300.9MB in the end (delta: 99.6MB). Free memory was 141.4MB in the beginning and 252.3MB in the end (delta: -111.0MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. * TraceAbstraction took 31863.47ms. Allocated memory was 300.9MB in the beginning and 712.0MB in the end (delta: 411.0MB). Free memory was 251.8MB in the beginning and 339.1MB in the end (delta: -87.3MB). Peak memory consumption was 413.9MB. 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: 760]: 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 42 procedures, 194 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.8s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3489 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3409 mSDsluCounter, 5403 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4157 mSDsCounter, 2579 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14887 IncrementalHoareTripleChecker+Invalid, 17466 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2579 mSolverCounterUnsat, 1246 mSDtfsCounter, 14887 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1876 GetRequests, 1395 SyntacticMatches, 37 SemanticMatches, 444 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20327 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1058occurred in iteration=11, InterpolantAutomatonStates: 261, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 521 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 2129 PreInvPairs, 2194 NumberOfFragments, 1815 HoareAnnotationTreeSize, 2129 FomulaSimplifications, 41834 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 66 FomulaSimplificationsInter, 22043 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 2056 NumberOfCodeBlocks, 2006 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2392 ConstructedInterpolants, 0 QuantifiedInterpolants, 5997 SizeOfPredicates, 34 NumberOfNonLiveVariables, 2569 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 855/1050 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: 906]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && splverifierCounter == 0) && \old(waterLevel) == waterLevel)) || ((1 <= pumpRunning && 2 == waterLevel) && splverifierCounter == 0)) || \old(waterLevel) < \old(pumpRunning) + 1 - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: (((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(1 == systemActive)) || \old(waterLevel) < \old(pumpRunning) + 1 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:58:16,719 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...