/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:07:25,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:07:25,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:07:25,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:07:25,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:07:25,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:07:25,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:07:25,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:07:25,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:07:25,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:07:25,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:07:25,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:07:25,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:07:25,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:07:25,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:07:25,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:07:25,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:07:25,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:07:25,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:07:25,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:07:25,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:07:25,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:07:25,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:07:25,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:07:25,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:07:25,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:07:25,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:07:25,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:07:25,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:07:25,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:07:25,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:07:25,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:07:25,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:07:25,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:07:25,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:07:25,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:07:25,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:07:25,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:07:25,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:07:25,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:07:25,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:07:25,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 01:07:25,311 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:07:25,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:07:25,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:07:25,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:07:25,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:07:25,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:07:25,312 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:07:25,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:07:25,313 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:07:25,314 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:07:25,314 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:07:25,314 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:07:25,314 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:07:25,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:07:25,315 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:07:25,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:25,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:07:25,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:07:25,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:07:25,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:07:25,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:07:25,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:07:25,541 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:07:25,541 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:07:25,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-04-03 01:07:26,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:07:26,800 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:07:26,800 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2023-04-03 01:07:26,816 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7129eae64/76cb42286dd34580b7cef49009542978/FLAG7d76ee1da [2023-04-03 01:07:26,826 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7129eae64/76cb42286dd34580b7cef49009542978 [2023-04-03 01:07:26,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:07:26,829 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:07:26,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:26,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:07:26,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:07:26,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:26" (1/1) ... [2023-04-03 01:07:26,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9b79a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:26, skipping insertion in model container [2023-04-03 01:07:26,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:26" (1/1) ... [2023-04-03 01:07:26,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:07:26,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:07:27,049 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] [2023-04-03 01:07:27,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:27,087 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:07:27,125 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] [2023-04-03 01:07:27,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:27,145 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:07:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27 WrapperNode [2023-04-03 01:07:27,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:27,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:07:27,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:07:27,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:07:27,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:07:27,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:07:27,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:07:27,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:07:27,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (1/1) ... [2023-04-03 01:07:27,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:27,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:27,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 01:07:27,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 01:07:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:07:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:07:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:07:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:07:27,257 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:07:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:07:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:07:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:07:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:07:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:07:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:07:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:07:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:07:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:07:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:07:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:07:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:07:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:07:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:07:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:07:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:07:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:07:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-03 01:07:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:07:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:07:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:07:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:07:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:07:27,402 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:07:27,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:07:27,830 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:07:27,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:07:27,937 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:07:27,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:27 BoogieIcfgContainer [2023-04-03 01:07:27,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:07:27,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:07:27,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:07:27,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:07:27,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:07:26" (1/3) ... [2023-04-03 01:07:27,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197c6845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:27, skipping insertion in model container [2023-04-03 01:07:27,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:27" (2/3) ... [2023-04-03 01:07:27,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197c6845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:27, skipping insertion in model container [2023-04-03 01:07:27,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:27" (3/3) ... [2023-04-03 01:07:27,949 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2023-04-03 01:07:27,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:07:27,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:07:28,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:07:28,016 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;@678c943d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:07:28,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:07:28,019 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) [2023-04-03 01:07:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:07:28,029 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:28,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:28,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:28,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash 819559515, now seen corresponding path program 1 times [2023-04-03 01:07:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:28,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802542298] [2023-04-03 01:07:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:28,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:28,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:28,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802542298] [2023-04-03 01:07:28,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802542298] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:28,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:28,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:07:28,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652931223] [2023-04-03 01:07:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:28,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:07:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:07:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:28,271 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) [2023-04-03 01:07:28,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:28,334 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2023-04-03 01:07:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:07:28,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 01:07:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:28,348 INFO L225 Difference]: With dead ends: 243 [2023-04-03 01:07:28,348 INFO L226 Difference]: Without dead ends: 122 [2023-04-03 01:07:28,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:28,356 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 [2023-04-03 01:07:28,356 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] [2023-04-03 01:07:28,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-04-03 01:07:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-04-03 01:07:28,392 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) [2023-04-03 01:07:28,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2023-04-03 01:07:28,394 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 42 [2023-04-03 01:07:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:28,395 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2023-04-03 01:07:28,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2023-04-03 01:07:28,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:07:28,399 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:28,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:28,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:07:28,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:28,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1911607870, now seen corresponding path program 1 times [2023-04-03 01:07:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:28,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299249963] [2023-04-03 01:07:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:28,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:28,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299249963] [2023-04-03 01:07:28,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299249963] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:28,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:28,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:07:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571913272] [2023-04-03 01:07:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:28,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:07:28,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:28,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:07:28,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:28,480 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) [2023-04-03 01:07:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:28,547 INFO L93 Difference]: Finished difference Result 201 states and 231 transitions. [2023-04-03 01:07:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:07:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 01:07:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:28,549 INFO L225 Difference]: With dead ends: 201 [2023-04-03 01:07:28,549 INFO L226 Difference]: Without dead ends: 114 [2023-04-03 01:07:28,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:28,550 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, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:28,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-04-03 01:07:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-04-03 01:07:28,558 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) [2023-04-03 01:07:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2023-04-03 01:07:28,559 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 43 [2023-04-03 01:07:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:28,559 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2023-04-03 01:07:28,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:07:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2023-04-03 01:07:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-03 01:07:28,560 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:28,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:28,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:07:28,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:28,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1729481380, now seen corresponding path program 1 times [2023-04-03 01:07:28,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:28,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722341867] [2023-04-03 01:07:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:28,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:28,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:28,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722341867] [2023-04-03 01:07:28,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722341867] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:28,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:28,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:28,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642924108] [2023-04-03 01:07:28,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:28,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:28,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:28,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:28,693 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) [2023-04-03 01:07:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:28,891 INFO L93 Difference]: Finished difference Result 206 states and 237 transitions. [2023-04-03 01:07:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 01:07:28,891 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 [2023-04-03 01:07:28,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:28,896 INFO L225 Difference]: With dead ends: 206 [2023-04-03 01:07:28,896 INFO L226 Difference]: Without dead ends: 114 [2023-04-03 01:07:28,901 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 [2023-04-03 01:07:28,903 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 [2023-04-03 01:07:28,904 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] [2023-04-03 01:07:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-04-03 01:07:28,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-04-03 01:07:28,918 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) [2023-04-03 01:07:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2023-04-03 01:07:28,918 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 45 [2023-04-03 01:07:28,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:28,919 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2023-04-03 01:07:28,919 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) [2023-04-03 01:07:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2023-04-03 01:07:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-03 01:07:28,920 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:28,923 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] [2023-04-03 01:07:28,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:07:28,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:28,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash -394126271, now seen corresponding path program 1 times [2023-04-03 01:07:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:28,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482359770] [2023-04-03 01:07:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:28,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:29,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:29,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482359770] [2023-04-03 01:07:29,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482359770] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:29,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:29,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 01:07:29,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549624454] [2023-04-03 01:07:29,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:29,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 01:07:29,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:29,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 01:07:29,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 01:07:29,024 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) [2023-04-03 01:07:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:29,323 INFO L93 Difference]: Finished difference Result 296 states and 347 transitions. [2023-04-03 01:07:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:07:29,323 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 [2023-04-03 01:07:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:29,326 INFO L225 Difference]: With dead ends: 296 [2023-04-03 01:07:29,327 INFO L226 Difference]: Without dead ends: 204 [2023-04-03 01:07:29,328 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 [2023-04-03 01:07:29,337 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 [2023-04-03 01:07:29,337 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] [2023-04-03 01:07:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-04-03 01:07:29,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 189. [2023-04-03 01:07:29,355 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) [2023-04-03 01:07:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 206 transitions. [2023-04-03 01:07:29,356 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 206 transitions. Word has length 62 [2023-04-03 01:07:29,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:29,356 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 206 transitions. [2023-04-03 01:07:29,356 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) [2023-04-03 01:07:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 206 transitions. [2023-04-03 01:07:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-03 01:07:29,358 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:29,358 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] [2023-04-03 01:07:29,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:07:29,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:29,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash 191484754, now seen corresponding path program 1 times [2023-04-03 01:07:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119256075] [2023-04-03 01:07:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:29,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:29,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119256075] [2023-04-03 01:07:29,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119256075] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:29,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:29,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:29,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82693081] [2023-04-03 01:07:29,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:29,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:29,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:29,603 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) [2023-04-03 01:07:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:29,818 INFO L93 Difference]: Finished difference Result 449 states and 505 transitions. [2023-04-03 01:07:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 01:07:29,818 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 [2023-04-03 01:07:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:29,823 INFO L225 Difference]: With dead ends: 449 [2023-04-03 01:07:29,823 INFO L226 Difference]: Without dead ends: 282 [2023-04-03 01:07:29,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-04-03 01:07:29,826 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 95 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:29,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 579 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-04-03 01:07:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 270. [2023-04-03 01:07:29,870 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) [2023-04-03 01:07:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 297 transitions. [2023-04-03 01:07:29,873 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 297 transitions. Word has length 72 [2023-04-03 01:07:29,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:29,875 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 297 transitions. [2023-04-03 01:07:29,875 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) [2023-04-03 01:07:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 297 transitions. [2023-04-03 01:07:29,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-04-03 01:07:29,882 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:29,882 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] [2023-04-03 01:07:29,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:07:29,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:29,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1434721781, now seen corresponding path program 1 times [2023-04-03 01:07:29,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:29,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59294431] [2023-04-03 01:07:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:30,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:30,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59294431] [2023-04-03 01:07:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59294431] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:30,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:30,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-03 01:07:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408170702] [2023-04-03 01:07:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:30,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 01:07:30,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 01:07:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-03 01:07:30,223 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) [2023-04-03 01:07:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:31,520 INFO L93 Difference]: Finished difference Result 705 states and 827 transitions. [2023-04-03 01:07:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-03 01:07:31,520 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 [2023-04-03 01:07:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:31,524 INFO L225 Difference]: With dead ends: 705 [2023-04-03 01:07:31,524 INFO L226 Difference]: Without dead ends: 538 [2023-04-03 01:07:31,525 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 [2023-04-03 01:07:31,526 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 415 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:31,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 351 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 01:07:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-04-03 01:07:31,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 474. [2023-04-03 01:07:31,576 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) [2023-04-03 01:07:31,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 521 transitions. [2023-04-03 01:07:31,582 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 521 transitions. Word has length 75 [2023-04-03 01:07:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:31,583 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 521 transitions. [2023-04-03 01:07:31,583 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) [2023-04-03 01:07:31,583 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 521 transitions. [2023-04-03 01:07:31,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-03 01:07:31,588 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:31,588 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] [2023-04-03 01:07:31,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:07:31,589 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:31,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:31,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1817020332, now seen corresponding path program 1 times [2023-04-03 01:07:31,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:31,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639769232] [2023-04-03 01:07:31,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:31,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:07:31,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:31,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639769232] [2023-04-03 01:07:31,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639769232] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:31,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:07:31,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088857653] [2023-04-03 01:07:31,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:31,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:07:31,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:31,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:07:31,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:07:31,667 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) [2023-04-03 01:07:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:31,808 INFO L93 Difference]: Finished difference Result 483 states and 530 transitions. [2023-04-03 01:07:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:07:31,809 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 [2023-04-03 01:07:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:31,811 INFO L225 Difference]: With dead ends: 483 [2023-04-03 01:07:31,811 INFO L226 Difference]: Without dead ends: 480 [2023-04-03 01:07:31,811 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 [2023-04-03 01:07:31,812 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 [2023-04-03 01:07:31,812 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] [2023-04-03 01:07:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-04-03 01:07:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 474. [2023-04-03 01:07:31,849 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) [2023-04-03 01:07:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 520 transitions. [2023-04-03 01:07:31,850 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 520 transitions. Word has length 115 [2023-04-03 01:07:31,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:31,851 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 520 transitions. [2023-04-03 01:07:31,851 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) [2023-04-03 01:07:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 520 transitions. [2023-04-03 01:07:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-03 01:07:31,853 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:31,853 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] [2023-04-03 01:07:31,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 01:07:31,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:31,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1255444544, now seen corresponding path program 1 times [2023-04-03 01:07:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:31,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360258920] [2023-04-03 01:07:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-03 01:07:31,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360258920] [2023-04-03 01:07:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360258920] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079369739] [2023-04-03 01:07:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:31,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:31,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:31,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:31,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:07:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:32,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 01:07:32,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:32,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:32,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079369739] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:32,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-04-03 01:07:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311237566] [2023-04-03 01:07:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:32,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:07:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:07:32,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-03 01:07:32,175 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) [2023-04-03 01:07:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:32,229 INFO L93 Difference]: Finished difference Result 683 states and 755 transitions. [2023-04-03 01:07:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:07:32,230 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 [2023-04-03 01:07:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:32,231 INFO L225 Difference]: With dead ends: 683 [2023-04-03 01:07:32,231 INFO L226 Difference]: Without dead ends: 354 [2023-04-03 01:07:32,232 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 [2023-04-03 01:07:32,232 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 [2023-04-03 01:07:32,232 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] [2023-04-03 01:07:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-04-03 01:07:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 262. [2023-04-03 01:07:32,251 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) [2023-04-03 01:07:32,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 278 transitions. [2023-04-03 01:07:32,253 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 278 transitions. Word has length 122 [2023-04-03 01:07:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:32,255 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 278 transitions. [2023-04-03 01:07:32,255 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) [2023-04-03 01:07:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 278 transitions. [2023-04-03 01:07:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-03 01:07:32,256 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:32,256 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] [2023-04-03 01:07:32,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:32,462 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 [2023-04-03 01:07:32,462 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:32,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1702040102, now seen corresponding path program 1 times [2023-04-03 01:07:32,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:32,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112221316] [2023-04-03 01:07:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:32,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-03 01:07:32,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:32,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112221316] [2023-04-03 01:07:32,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112221316] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:32,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962354235] [2023-04-03 01:07:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:32,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:32,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:32,797 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) [2023-04-03 01:07:32,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 01:07:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:32,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-03 01:07:32,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:33,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:33,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962354235] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:33,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:33,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2023-04-03 01:07:33,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91287185] [2023-04-03 01:07:33,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:33,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 01:07:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:33,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 01:07:33,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2023-04-03 01:07:33,382 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) [2023-04-03 01:07:34,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:34,223 INFO L93 Difference]: Finished difference Result 549 states and 606 transitions. [2023-04-03 01:07:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-03 01:07:34,223 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 [2023-04-03 01:07:34,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:34,225 INFO L225 Difference]: With dead ends: 549 [2023-04-03 01:07:34,225 INFO L226 Difference]: Without dead ends: 362 [2023-04-03 01:07:34,226 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 [2023-04-03 01:07:34,227 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 235 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:34,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 203 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 01:07:34,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-04-03 01:07:34,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 332. [2023-04-03 01:07:34,249 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) [2023-04-03 01:07:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 359 transitions. [2023-04-03 01:07:34,251 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 359 transitions. Word has length 131 [2023-04-03 01:07:34,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:34,252 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 359 transitions. [2023-04-03 01:07:34,252 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) [2023-04-03 01:07:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 359 transitions. [2023-04-03 01:07:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-04-03 01:07:34,254 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:34,254 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] [2023-04-03 01:07:34,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:34,460 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 [2023-04-03 01:07:34,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:34,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:34,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1884095907, now seen corresponding path program 1 times [2023-04-03 01:07:34,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:34,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828210330] [2023-04-03 01:07:34,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:34,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:07:34,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:34,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828210330] [2023-04-03 01:07:34,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828210330] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:34,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734718287] [2023-04-03 01:07:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:34,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:34,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:34,835 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) [2023-04-03 01:07:34,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:07:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:34,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:07:34,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 01:07:35,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:07:35,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734718287] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:35,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [71838892] [2023-04-03 01:07:35,847 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2023-04-03 01:07:35,848 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:35,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:35,855 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:35,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:35,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:36,020 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-04-03 01:07:36,134 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-04-03 01:07:36,145 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-04-03 01:07:37,433 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:07:37,441 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 42 for LOIs [2023-04-03 01:07:37,653 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 42 for LOIs [2023-04-03 01:07:37,660 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:37,786 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:37,881 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:38,003 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:38,082 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:38,086 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:38,089 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:38,091 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:07:38,132 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:07:38,135 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 23 for LOIs [2023-04-03 01:07:38,171 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2023-04-03 01:07:38,173 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:38,174 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:38,176 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:38,206 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:38,208 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:38,210 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:38,212 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:38,214 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:38,215 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:41,787 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10846#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:41,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:41,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:41,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 17] total 36 [2023-04-03 01:07:41,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582242856] [2023-04-03 01:07:41,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:41,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-03 01:07:41,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:41,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-03 01:07:41,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=659, Invalid=7351, Unknown=0, NotChecked=0, Total=8010 [2023-04-03 01:07:41,794 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) [2023-04-03 01:07:46,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:46,150 INFO L93 Difference]: Finished difference Result 1447 states and 1724 transitions. [2023-04-03 01:07:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-04-03 01:07:46,151 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 [2023-04-03 01:07:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:46,157 INFO L225 Difference]: With dead ends: 1447 [2023-04-03 01:07:46,157 INFO L226 Difference]: Without dead ends: 1229 [2023-04-03 01:07:46,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 336 SyntacticMatches, 17 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12384 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2537, Invalid=26533, Unknown=0, NotChecked=0, Total=29070 [2023-04-03 01:07:46,165 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1606 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 4684 mSolverCounterSat, 1420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 6104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1420 IncrementalHoareTripleChecker+Valid, 4684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:46,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 967 Invalid, 6104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1420 Valid, 4684 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-03 01:07:46,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-04-03 01:07:46,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 940. [2023-04-03 01:07:46,242 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) [2023-04-03 01:07:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1025 transitions. [2023-04-03 01:07:46,245 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1025 transitions. Word has length 134 [2023-04-03 01:07:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:46,245 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1025 transitions. [2023-04-03 01:07:46,246 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) [2023-04-03 01:07:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1025 transitions. [2023-04-03 01:07:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-03 01:07:46,247 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:46,248 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] [2023-04-03 01:07:46,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:46,458 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 [2023-04-03 01:07:46,458 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:46,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2073819445, now seen corresponding path program 2 times [2023-04-03 01:07:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:46,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908211935] [2023-04-03 01:07:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:46,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 35 proven. 20 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-04-03 01:07:47,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908211935] [2023-04-03 01:07:47,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908211935] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000883451] [2023-04-03 01:07:47,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-03 01:07:47,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:47,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:47,126 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) [2023-04-03 01:07:47,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 01:07:47,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-03 01:07:47,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:07:47,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-03 01:07:47,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:07:47,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000883451] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:47,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:47,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-04-03 01:07:47,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457469198] [2023-04-03 01:07:47,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:47,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 01:07:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:47,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 01:07:47,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2023-04-03 01:07:47,582 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) [2023-04-03 01:07:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:48,226 INFO L93 Difference]: Finished difference Result 1977 states and 2181 transitions. [2023-04-03 01:07:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 01:07:48,227 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 [2023-04-03 01:07:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:48,231 INFO L225 Difference]: With dead ends: 1977 [2023-04-03 01:07:48,231 INFO L226 Difference]: Without dead ends: 1071 [2023-04-03 01:07:48,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2023-04-03 01:07:48,234 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 109 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:48,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 780 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 01:07:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-04-03 01:07:48,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1058. [2023-04-03 01:07:48,292 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) [2023-04-03 01:07:48,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1154 transitions. [2023-04-03 01:07:48,295 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1154 transitions. Word has length 193 [2023-04-03 01:07:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:48,295 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1154 transitions. [2023-04-03 01:07:48,296 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) [2023-04-03 01:07:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1154 transitions. [2023-04-03 01:07:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-03 01:07:48,297 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:48,298 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] [2023-04-03 01:07:48,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:48,503 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 [2023-04-03 01:07:48,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:48,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash -585944153, now seen corresponding path program 1 times [2023-04-03 01:07:48,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:48,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206123935] [2023-04-03 01:07:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 62 proven. 7 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-04-03 01:07:48,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:48,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206123935] [2023-04-03 01:07:48,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206123935] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:48,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754279263] [2023-04-03 01:07:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:48,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:48,701 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) [2023-04-03 01:07:48,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 01:07:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:48,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 50 conjunts are in the unsatisfiable core [2023-04-03 01:07:48,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 64 proven. 122 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-03 01:07:49,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 70 proven. 7 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-04-03 01:07:50,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754279263] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:50,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [232955934] [2023-04-03 01:07:50,750 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2023-04-03 01:07:50,750 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:50,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:50,751 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:50,751 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:50,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:50,843 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-04-03 01:07:50,901 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-04-03 01:07:50,906 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-04-03 01:07:51,759 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:07:51,762 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 42 for LOIs [2023-04-03 01:07:51,911 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 42 for LOIs [2023-04-03 01:07:51,916 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:52,000 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:52,085 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:52,177 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:52,220 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:52,224 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:52,227 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:52,228 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:07:52,262 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:07:52,265 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 23 for LOIs [2023-04-03 01:07:52,297 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 23 for LOIs [2023-04-03 01:07:52,298 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:52,299 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:52,300 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:52,337 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:52,339 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:52,340 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:52,341 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:52,344 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:52,345 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:56,608 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20829#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:56,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:56,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:56,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 14] total 38 [2023-04-03 01:07:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394741492] [2023-04-03 01:07:56,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:56,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-03 01:07:56,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-03 01:07:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=7786, Unknown=0, NotChecked=0, Total=8372 [2023-04-03 01:07:56,612 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) [2023-04-03 01:07:59,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:59,888 INFO L93 Difference]: Finished difference Result 1627 states and 1784 transitions. [2023-04-03 01:07:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-04-03 01:07:59,889 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 [2023-04-03 01:07:59,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:59,890 INFO L225 Difference]: With dead ends: 1627 [2023-04-03 01:07:59,890 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:07:59,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 566 SyntacticMatches, 30 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8015 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1433, Invalid=19159, Unknown=0, NotChecked=0, Total=20592 [2023-04-03 01:07:59,897 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 511 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 5765 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 6300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 5765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:59,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1117 Invalid, 6300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 5765 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 01:07:59,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:07:59,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:07:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-03 01:07:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:07:59,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2023-04-03 01:07:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:59,898 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:07:59,898 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) [2023-04-03 01:07:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:07:59,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:07:59,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:07:59,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-03 01:08:00,101 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 [2023-04-03 01:08:00,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:08:04,657 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:04,658 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 746 754) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 746 754) the Hoare annotation is: true [2023-04-03 01:08:04,659 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))) [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 869 893) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2023-04-03 01:08:04,659 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))) [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L879-1(line 879) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 890) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L877-1(lines 869 893) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L902 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: true [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L875-1(line 875) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 869 893) the Hoare annotation is: true [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 967 989) no Hoare annotation was computed. [2023-04-03 01:08:04,659 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))) [2023-04-03 01:08:04,659 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))) [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 984) no Hoare annotation was computed. [2023-04-03 01:08:04,659 INFO L899 garLoopResultBuilder]: For program point L977-1(lines 977 984) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L975(line 975) no Hoare annotation was computed. [2023-04-03 01:08:04,660 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))) [2023-04-03 01:08:04,660 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))) [2023-04-03 01:08:04,660 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))) [2023-04-03 01:08:04,660 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))) [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 926 949) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 926 949) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L944(line 944) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L943(line 943) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L942(line 942) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L941(line 941) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L939(line 939) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L938(line 938) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 926 949) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L937(line 937) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L936(line 936) no Hoare annotation was computed. [2023-04-03 01:08:04,660 INFO L899 garLoopResultBuilder]: For program point L935(line 935) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L933(line 933) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L902 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: true [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L705-1(line 705) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 698 716) the Hoare annotation is: true [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 698 716) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 732 738) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 732 738) the Hoare annotation is: true [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 845 858) the Hoare annotation is: true [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 845 858) no Hoare annotation was computed. [2023-04-03 01:08:04,661 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))) [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 582 606) no Hoare annotation was computed. [2023-04-03 01:08:04,661 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 582 606) no Hoare annotation was computed. [2023-04-03 01:08:04,661 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))) [2023-04-03 01:08:04,662 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)|))))) [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L590(lines 590 598) no Hoare annotation was computed. [2023-04-03 01:08:04,662 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))) [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L588-1(line 588) no Hoare annotation was computed. [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 603) no Hoare annotation was computed. [2023-04-03 01:08:04,662 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))) [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 522 528) no Hoare annotation was computed. [2023-04-03 01:08:04,662 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 522 528) the Hoare annotation is: true [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2023-04-03 01:08:04,662 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)))) [2023-04-03 01:08:04,662 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)))) [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2023-04-03 01:08:04,662 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 420 483) no Hoare annotation was computed. [2023-04-03 01:08:04,662 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))) [2023-04-03 01:08:04,662 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))) [2023-04-03 01:08:04,663 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)))) [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2023-04-03 01:08:04,663 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)))) [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 420 483) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 859 867) the Hoare annotation is: true [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 859 867) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 813 835) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 813 835) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 607 614) no Hoare annotation was computed. [2023-04-03 01:08:04,663 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))) [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 679 697) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L902 garLoopResultBuilder]: At program point L686(line 686) the Hoare annotation is: true [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point L686-1(line 686) no Hoare annotation was computed. [2023-04-03 01:08:04,663 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 679 697) the Hoare annotation is: true [2023-04-03 01:08:04,663 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 836 844) the Hoare annotation is: true [2023-04-03 01:08:04,663 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 836 844) no Hoare annotation was computed. [2023-04-03 01:08:04,663 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))))) [2023-04-03 01:08:04,664 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))) [2023-04-03 01:08:04,664 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)))) [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point L502(lines 501 520) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 521) no Hoare annotation was computed. [2023-04-03 01:08:04,664 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)))) [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 498 521) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 896 925) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point L921(lines 896 925) the Hoare annotation is: true [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point L917(line 917) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point L910-1(lines 910 914) the Hoare annotation is: true [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 896 925) the Hoare annotation is: true [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: true [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: true [2023-04-03 01:08:04,664 INFO L899 garLoopResultBuilder]: For program point L902-1(line 902) no Hoare annotation was computed. [2023-04-03 01:08:04,664 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 804 812) the Hoare annotation is: true [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 804 812) no Hoare annotation was computed. [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 768 779) no Hoare annotation was computed. [2023-04-03 01:08:04,666 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))) [2023-04-03 01:08:04,666 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))))) [2023-04-03 01:08:04,666 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))) [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 530 554) no Hoare annotation was computed. [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 546) no Hoare annotation was computed. [2023-04-03 01:08:04,666 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))) [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point L536-1(line 536) no Hoare annotation was computed. [2023-04-03 01:08:04,666 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 551) no Hoare annotation was computed. [2023-04-03 01:08:04,667 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))) [2023-04-03 01:08:04,667 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))) [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point L549-1(lines 530 554) no Hoare annotation was computed. [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 780 791) no Hoare annotation was computed. [2023-04-03 01:08:04,667 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)))))) [2023-04-03 01:08:04,667 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 756 763) the Hoare annotation is: true [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 760) no Hoare annotation was computed. [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 756 763) no Hoare annotation was computed. [2023-04-03 01:08:04,667 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)))) [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 556 580) no Hoare annotation was computed. [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 556 580) no Hoare annotation was computed. [2023-04-03 01:08:04,667 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)))) [2023-04-03 01:08:04,667 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))) [2023-04-03 01:08:04,667 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 572) no Hoare annotation was computed. [2023-04-03 01:08:04,667 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)))) [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 577) no Hoare annotation was computed. [2023-04-03 01:08:04,668 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))) [2023-04-03 01:08:04,668 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 739 745) the Hoare annotation is: true [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 739 745) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 634 642) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 642) the Hoare annotation is: true [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point L673(line 673) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 643 678) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 643 678) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 957 966) no Hoare annotation was computed. [2023-04-03 01:08:04,668 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))) [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 957 966) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 623 633) no Hoare annotation was computed. [2023-04-03 01:08:04,668 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 623 633) the Hoare annotation is: true [2023-04-03 01:08:04,668 INFO L902 garLoopResultBuilder]: At program point L628(line 628) the Hoare annotation is: true [2023-04-03 01:08:04,668 INFO L899 garLoopResultBuilder]: For program point L628-1(line 628) no Hoare annotation was computed. [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 615 622) no Hoare annotation was computed. [2023-04-03 01:08:04,669 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)) [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-04-03 01:08:04,669 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 722 731) no Hoare annotation was computed. [2023-04-03 01:08:04,670 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 722 731) no Hoare annotation was computed. [2023-04-03 01:08:04,670 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)) [2023-04-03 01:08:04,671 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:04,673 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:04,673 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:08:04,674 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)))) [2023-04-03 01:08:04,674 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 792 803) no Hoare annotation was computed. [2023-04-03 01:08:04,674 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 950 956) no Hoare annotation was computed. [2023-04-03 01:08:04,674 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 950 956) the Hoare annotation is: true [2023-04-03 01:08:04,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:04,674 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)) [2023-04-03 01:08:04,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:08:04,674 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:08:04,677 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:04,678 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:08:04,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:08:04 BoogieIcfgContainer [2023-04-03 01:08:04,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:08:04,696 INFO L158 Benchmark]: Toolchain (without parser) took 37865.25ms. Allocated memory was 226.5MB in the beginning and 598.7MB in the end (delta: 372.2MB). Free memory was 175.5MB in the beginning and 467.5MB in the end (delta: -292.1MB). Peak memory consumption was 356.5MB. Max. memory is 8.0GB. [2023-04-03 01:08:04,696 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:08:04,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.38ms. Allocated memory is still 226.5MB. Free memory was 175.5MB in the beginning and 156.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-03 01:08:04,697 INFO L158 Benchmark]: Boogie Preprocessor took 48.19ms. Allocated memory is still 226.5MB. Free memory was 156.6MB in the beginning and 152.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 01:08:04,698 INFO L158 Benchmark]: RCFGBuilder took 745.65ms. Allocated memory is still 226.5MB. Free memory was 152.9MB in the beginning and 169.8MB in the end (delta: -16.8MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. [2023-04-03 01:08:04,698 INFO L158 Benchmark]: TraceAbstraction took 36750.35ms. Allocated memory was 226.5MB in the beginning and 598.7MB in the end (delta: 372.2MB). Free memory was 168.7MB in the beginning and 467.5MB in the end (delta: -298.8MB). Peak memory consumption was 348.7MB. Max. memory is 8.0GB. [2023-04-03 01:08:04,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.38ms. Allocated memory is still 226.5MB. Free memory was 175.5MB in the beginning and 156.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.19ms. Allocated memory is still 226.5MB. Free memory was 156.6MB in the beginning and 152.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 745.65ms. Allocated memory is still 226.5MB. Free memory was 152.9MB in the beginning and 169.8MB in the end (delta: -16.8MB). Peak memory consumption was 47.7MB. Max. memory is 8.0GB. * TraceAbstraction took 36750.35ms. Allocated memory was 226.5MB in the beginning and 598.7MB in the end (delta: 372.2MB). Free memory was 168.7MB in the beginning and 467.5MB in the end (delta: -298.8MB). Peak memory consumption was 348.7MB. 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: 36.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3488 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3408 mSDsluCounter, 5542 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4298 mSDsCounter, 2589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15269 IncrementalHoareTripleChecker+Invalid, 17858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2589 mSolverCounterUnsat, 1244 mSDtfsCounter, 15269 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1876 GetRequests, 1376 SyntacticMatches, 47 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21197 ImplicationChecksByTransitivity, 12.9s 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, 0.9s HoareSimplificationTime, 66 FomulaSimplificationsInter, 22043 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.2s 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! [2023-04-03 01:08:04,729 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...