/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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:07:49,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:07:49,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:07:49,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:07:49,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:07:49,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:07:49,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:07:49,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:07:49,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:07:49,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:07:49,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:07:49,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:07:49,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:07:49,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:07:49,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:07:49,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:07:49,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:07:49,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:07:49,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:07:49,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:07:49,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:07:49,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:07:49,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:07:49,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:07:49,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:07:49,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:07:49,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:07:49,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:07:49,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:07:49,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:07:49,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:07:49,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:07:49,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:07:49,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:07:49,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:07:49,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:07:49,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:07:49,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:07:49,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:07:49,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:07:49,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:07:49,249 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 01:07:49,273 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:07:49,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:07:49,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:07:49,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:07:49,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:07:49,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:07:49,274 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:07:49,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:07:49,274 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:07:49,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:07:49,275 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:07:49,275 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:07:49,275 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:07:49,275 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:07:49,275 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:07:49,276 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:07:49,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:07:49,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:07:49,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:07:49,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:49,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:07:49,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:07:49,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:07:49,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:07:49,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:07:49,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:07:49,518 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:07:49,519 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:07:49,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2023-04-03 01:07:50,663 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:07:50,852 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:07:50,852 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2023-04-03 01:07:50,860 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c312138/7fba0dd59a624097807ad6608e9d8212/FLAG19339c1c7 [2023-04-03 01:07:50,870 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c312138/7fba0dd59a624097807ad6608e9d8212 [2023-04-03 01:07:50,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:07:50,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:07:50,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:50,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:07:50,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:07:50,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:50" (1/1) ... [2023-04-03 01:07:50,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55469117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:50, skipping insertion in model container [2023-04-03 01:07:50,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:50" (1/1) ... [2023-04-03 01:07:50,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:07:50,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:07:51,146 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_product60.cil.c[13463,13476] [2023-04-03 01:07:51,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:51,196 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:07:51,246 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_product60.cil.c[13463,13476] [2023-04-03 01:07:51,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:51,271 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:07:51,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51 WrapperNode [2023-04-03 01:07:51,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:51,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:07:51,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:07:51,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:07:51,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:07:51,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:07:51,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:07:51,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:07:51,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (1/1) ... [2023-04-03 01:07:51,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:51,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:51,346 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 01:07:51,359 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 01:07:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:07:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:07:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:07:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:07:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:07:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:07:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:07:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:07:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:07:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:07:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:07:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:07:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:07:51,507 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:07:51,509 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:07:51,999 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:07:52,064 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:07:52,065 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:07:52,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:52 BoogieIcfgContainer [2023-04-03 01:07:52,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:07:52,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:07:52,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:07:52,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:07:52,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:07:50" (1/3) ... [2023-04-03 01:07:52,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc4c0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:52, skipping insertion in model container [2023-04-03 01:07:52,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:51" (2/3) ... [2023-04-03 01:07:52,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc4c0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:52, skipping insertion in model container [2023-04-03 01:07:52,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:52" (3/3) ... [2023-04-03 01:07:52,073 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2023-04-03 01:07:52,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:07:52,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:07:52,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:07:52,129 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;@75797094, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:07:52,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:07:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 91 states have internal predecessors, (95), 51 states have call successors, (51), 33 states have call predecessors, (51), 33 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-03 01:07:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:07:52,147 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:52,148 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 01:07:52,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:52,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:52,154 INFO L85 PathProgramCache]: Analyzing trace with hash -613117822, now seen corresponding path program 1 times [2023-04-03 01:07:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:52,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637090803] [2023-04-03 01:07:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:52,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:52,346 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 01:07:52,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:52,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637090803] [2023-04-03 01:07:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637090803] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:52,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:52,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:07:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544382350] [2023-04-03 01:07:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:52,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:07:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:07:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:52,397 INFO L87 Difference]: Start difference. First operand has 162 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 91 states have internal predecessors, (95), 51 states have call successors, (51), 33 states have call predecessors, (51), 33 states have return successors, (51), 46 states have call predecessors, (51), 51 states have call successors, (51) 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 01:07:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:52,504 INFO L93 Difference]: Finished difference Result 257 states and 308 transitions. [2023-04-03 01:07:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:07:52,506 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 01:07:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:52,513 INFO L225 Difference]: With dead ends: 257 [2023-04-03 01:07:52,513 INFO L226 Difference]: Without dead ends: 129 [2023-04-03 01:07:52,516 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 01:07:52,518 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:52,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:52,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-04-03 01:07:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-04-03 01:07:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 79 states have internal predecessors, (81), 36 states have call successors, (36), 31 states have call predecessors, (36), 26 states have return successors, (31), 26 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-03 01:07:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2023-04-03 01:07:52,565 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 42 [2023-04-03 01:07:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:52,565 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2023-04-03 01:07:52,566 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 01:07:52,566 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2023-04-03 01:07:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:07:52,568 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:52,568 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 01:07:52,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:07:52,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:52,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash 404405886, now seen corresponding path program 1 times [2023-04-03 01:07:52,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:52,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076462330] [2023-04-03 01:07:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:52,682 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 01:07:52,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:52,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076462330] [2023-04-03 01:07:52,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076462330] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:52,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:52,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:07:52,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106198717] [2023-04-03 01:07:52,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:52,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:07:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:07:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:52,687 INFO L87 Difference]: Start difference. First operand 129 states and 148 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 01:07:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:52,757 INFO L93 Difference]: Finished difference Result 205 states and 233 transitions. [2023-04-03 01:07:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:07:52,758 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 01:07:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:52,759 INFO L225 Difference]: With dead ends: 205 [2023-04-03 01:07:52,759 INFO L226 Difference]: Without dead ends: 121 [2023-04-03 01:07:52,760 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 01:07:52,761 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:52,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 221 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:07:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-04-03 01:07:52,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-04-03 01:07:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 74 states have internal predecessors, (75), 33 states have call successors, (33), 30 states have call predecessors, (33), 26 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-03 01:07:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2023-04-03 01:07:52,771 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 43 [2023-04-03 01:07:52,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:52,771 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2023-04-03 01:07:52,771 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 01:07:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2023-04-03 01:07:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:07:52,780 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:52,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:52,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:07:52,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:52,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash 121747731, now seen corresponding path program 1 times [2023-04-03 01:07:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928922409] [2023-04-03 01:07:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:52,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:52,964 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 01:07:52,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:52,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928922409] [2023-04-03 01:07:52,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928922409] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:52,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:52,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:52,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994425087] [2023-04-03 01:07:52,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:52,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:52,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:52,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:52,966 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 01:07:53,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:53,291 INFO L93 Difference]: Finished difference Result 364 states and 427 transitions. [2023-04-03 01:07:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:07:53,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 47 [2023-04-03 01:07:53,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:53,294 INFO L225 Difference]: With dead ends: 364 [2023-04-03 01:07:53,294 INFO L226 Difference]: Without dead ends: 265 [2023-04-03 01:07:53,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 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 01:07:53,295 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 283 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:53,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 506 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-04-03 01:07:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 253. [2023-04-03 01:07:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 159 states have internal predecessors, (169), 65 states have call successors, (65), 59 states have call predecessors, (65), 53 states have return successors, (62), 49 states have call predecessors, (62), 61 states have call successors, (62) [2023-04-03 01:07:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 296 transitions. [2023-04-03 01:07:53,334 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 296 transitions. Word has length 47 [2023-04-03 01:07:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:53,334 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 296 transitions. [2023-04-03 01:07:53,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 01:07:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 296 transitions. [2023-04-03 01:07:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:07:53,335 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:53,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:53,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:07:53,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:53,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1104928888, now seen corresponding path program 1 times [2023-04-03 01:07:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:53,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598517287] [2023-04-03 01:07:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:53,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:53,510 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 01:07:53,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:53,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598517287] [2023-04-03 01:07:53,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598517287] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:53,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:53,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:07:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304877231] [2023-04-03 01:07:53,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:53,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:07:53,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:07:53,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:07:53,513 INFO L87 Difference]: Start difference. First operand 253 states and 296 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:07:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:53,699 INFO L93 Difference]: Finished difference Result 697 states and 841 transitions. [2023-04-03 01:07:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:07:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-04-03 01:07:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:53,703 INFO L225 Difference]: With dead ends: 697 [2023-04-03 01:07:53,703 INFO L226 Difference]: Without dead ends: 466 [2023-04-03 01:07:53,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 01:07:53,705 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 97 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:53,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 508 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-04-03 01:07:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 448. [2023-04-03 01:07:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 243 states have (on average 1.2633744855967077) internal successors, (307), 286 states have internal predecessors, (307), 112 states have call successors, (112), 100 states have call predecessors, (112), 92 states have return successors, (114), 84 states have call predecessors, (114), 108 states have call successors, (114) [2023-04-03 01:07:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 533 transitions. [2023-04-03 01:07:53,748 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 533 transitions. Word has length 51 [2023-04-03 01:07:53,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:53,748 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 533 transitions. [2023-04-03 01:07:53,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:07:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 533 transitions. [2023-04-03 01:07:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 01:07:53,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:53,750 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] [2023-04-03 01:07:53,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:07:53,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:53,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2013478845, now seen corresponding path program 1 times [2023-04-03 01:07:53,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:53,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76309821] [2023-04-03 01:07:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:53,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:53,807 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 01:07:53,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76309821] [2023-04-03 01:07:53,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76309821] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:53,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:53,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:07:53,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158014591] [2023-04-03 01:07:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:53,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:07:53,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:07:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:07:53,809 INFO L87 Difference]: Start difference. First operand 448 states and 533 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:07:53,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:53,996 INFO L93 Difference]: Finished difference Result 1017 states and 1262 transitions. [2023-04-03 01:07:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:07:53,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-03 01:07:53,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:54,003 INFO L225 Difference]: With dead ends: 1017 [2023-04-03 01:07:54,003 INFO L226 Difference]: Without dead ends: 591 [2023-04-03 01:07:54,005 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 01:07:54,014 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 100 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:54,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 474 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-04-03 01:07:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 568. [2023-04-03 01:07:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 359 states have internal predecessors, (396), 121 states have call successors, (121), 119 states have call predecessors, (121), 120 states have return successors, (149), 113 states have call predecessors, (149), 117 states have call successors, (149) [2023-04-03 01:07:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 666 transitions. [2023-04-03 01:07:54,075 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 666 transitions. Word has length 54 [2023-04-03 01:07:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:54,075 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 666 transitions. [2023-04-03 01:07:54,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 01:07:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 666 transitions. [2023-04-03 01:07:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-03 01:07:54,078 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:54,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:54,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:07:54,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:54,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2023584798, now seen corresponding path program 1 times [2023-04-03 01:07:54,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:54,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631598155] [2023-04-03 01:07:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:54,314 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 01:07:54,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631598155] [2023-04-03 01:07:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631598155] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:54,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:54,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-03 01:07:54,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105848948] [2023-04-03 01:07:54,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:54,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 01:07:54,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 01:07:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-03 01:07:54,316 INFO L87 Difference]: Start difference. First operand 568 states and 666 transitions. Second operand has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-03 01:07:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:55,721 INFO L93 Difference]: Finished difference Result 1686 states and 2127 transitions. [2023-04-03 01:07:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-03 01:07:55,722 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 85 [2023-04-03 01:07:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:55,728 INFO L225 Difference]: With dead ends: 1686 [2023-04-03 01:07:55,729 INFO L226 Difference]: Without dead ends: 1366 [2023-04-03 01:07:55,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2023-04-03 01:07:55,733 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 669 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:55,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 433 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 01:07:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2023-04-03 01:07:55,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1159. [2023-04-03 01:07:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 672 states have (on average 1.1964285714285714) internal successors, (804), 735 states have internal predecessors, (804), 237 states have call successors, (237), 231 states have call predecessors, (237), 249 states have return successors, (305), 238 states have call predecessors, (305), 233 states have call successors, (305) [2023-04-03 01:07:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1346 transitions. [2023-04-03 01:07:55,832 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1346 transitions. Word has length 85 [2023-04-03 01:07:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:55,833 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1346 transitions. [2023-04-03 01:07:55,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 5 states have call successors, (22), 6 states have call predecessors, (22), 4 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-03 01:07:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1346 transitions. [2023-04-03 01:07:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-03 01:07:55,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:55,839 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] [2023-04-03 01:07:55,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:07:55,839 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:55,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1684983692, now seen corresponding path program 1 times [2023-04-03 01:07:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:55,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717710051] [2023-04-03 01:07:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-03 01:07:56,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:56,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717710051] [2023-04-03 01:07:56,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717710051] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:56,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399260078] [2023-04-03 01:07:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:56,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:56,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:56,202 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 01:07:56,208 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 01:07:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:56,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:07:56,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:56,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:56,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399260078] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:56,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:56,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-04-03 01:07:56,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400724860] [2023-04-03 01:07:56,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:56,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:56,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:56,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:56,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-04-03 01:07:56,675 INFO L87 Difference]: Start difference. First operand 1159 states and 1346 transitions. Second operand has 14 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 6 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-03 01:07:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:57,844 INFO L93 Difference]: Finished difference Result 2635 states and 3188 transitions. [2023-04-03 01:07:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:07:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 6 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 129 [2023-04-03 01:07:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:57,850 INFO L225 Difference]: With dead ends: 2635 [2023-04-03 01:07:57,851 INFO L226 Difference]: Without dead ends: 1498 [2023-04-03 01:07:57,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2023-04-03 01:07:57,854 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 205 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:57,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 458 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 01:07:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2023-04-03 01:07:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1475. [2023-04-03 01:07:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 874 states have (on average 1.1933638443935928) internal successors, (1043), 944 states have internal predecessors, (1043), 299 states have call successors, (299), 291 states have call predecessors, (299), 301 states have return successors, (410), 306 states have call predecessors, (410), 295 states have call successors, (410) [2023-04-03 01:07:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1752 transitions. [2023-04-03 01:07:57,965 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1752 transitions. Word has length 129 [2023-04-03 01:07:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:57,965 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 1752 transitions. [2023-04-03 01:07:57,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 6 states have call successors, (30), 5 states have call predecessors, (30), 7 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-03 01:07:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1752 transitions. [2023-04-03 01:07:57,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-03 01:07:57,969 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:57,969 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] [2023-04-03 01:07:57,987 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 01:07:58,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:58,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:58,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:58,176 INFO L85 PathProgramCache]: Analyzing trace with hash -197969665, now seen corresponding path program 1 times [2023-04-03 01:07:58,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:58,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159723956] [2023-04-03 01:07:58,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:58,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-03 01:07:58,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:58,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159723956] [2023-04-03 01:07:58,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159723956] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:58,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014057423] [2023-04-03 01:07:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:58,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:58,509 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 01:07:58,512 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 01:07:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:58,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:07:58,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-03 01:07:59,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 01:07:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014057423] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [90684163] [2023-04-03 01:07:59,679 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2023-04-03 01:07:59,679 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:59,683 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:59,688 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:59,689 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:59,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:59,900 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:08:00,019 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:08:00,028 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:08:01,979 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:08:01,984 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:08:02,103 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:08:02,106 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:08:02,232 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:08:02,322 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:08:02,368 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:08:02,372 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:08:02,407 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-04-03 01:08:02,427 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-04-03 01:08:02,430 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:08:02,432 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:08:02,433 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:08:02,469 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:08:02,472 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:08:02,473 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:08:02,475 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:08:02,502 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:08:02,504 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:08:02,505 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:08:02,507 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:08:02,508 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:08:02,510 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:08:06,479 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17455#(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 01:08:06,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:08:06,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:08:06,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 33 [2023-04-03 01:08:06,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175814797] [2023-04-03 01:08:06,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:08:06,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-04-03 01:08:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:06,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-04-03 01:08:06,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=694, Invalid=7678, Unknown=0, NotChecked=0, Total=8372 [2023-04-03 01:08:06,483 INFO L87 Difference]: Start difference. First operand 1475 states and 1752 transitions. Second operand has 33 states, 22 states have (on average 6.181818181818182) internal successors, (136), 27 states have internal predecessors, (136), 10 states have call successors, (59), 11 states have call predecessors, (59), 18 states have return successors, (53), 16 states have call predecessors, (53), 10 states have call successors, (53) [2023-04-03 01:08:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:09,237 INFO L93 Difference]: Finished difference Result 5574 states and 7962 transitions. [2023-04-03 01:08:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-04-03 01:08:09,237 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 22 states have (on average 6.181818181818182) internal successors, (136), 27 states have internal predecessors, (136), 10 states have call successors, (59), 11 states have call predecessors, (59), 18 states have return successors, (53), 16 states have call predecessors, (53), 10 states have call successors, (53) Word has length 132 [2023-04-03 01:08:09,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:09,255 INFO L225 Difference]: With dead ends: 5574 [2023-04-03 01:08:09,255 INFO L226 Difference]: Without dead ends: 4853 [2023-04-03 01:08:09,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 314 SyntacticMatches, 16 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7578 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1368, Invalid=15144, Unknown=0, NotChecked=0, Total=16512 [2023-04-03 01:08:09,262 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 846 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:09,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1127 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 01:08:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2023-04-03 01:08:09,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4069. [2023-04-03 01:08:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2399 states have (on average 1.1988328470195915) internal successors, (2876), 2583 states have internal predecessors, (2876), 845 states have call successors, (845), 801 states have call predecessors, (845), 824 states have return successors, (1404), 860 states have call predecessors, (1404), 841 states have call successors, (1404) [2023-04-03 01:08:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5125 transitions. [2023-04-03 01:08:09,556 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5125 transitions. Word has length 132 [2023-04-03 01:08:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5125 transitions. [2023-04-03 01:08:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 22 states have (on average 6.181818181818182) internal successors, (136), 27 states have internal predecessors, (136), 10 states have call successors, (59), 11 states have call predecessors, (59), 18 states have return successors, (53), 16 states have call predecessors, (53), 10 states have call successors, (53) [2023-04-03 01:08:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5125 transitions. [2023-04-03 01:08:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-03 01:08:09,563 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:09,564 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, 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] [2023-04-03 01:08:09,571 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 01:08:09,771 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,SelfDestructingSolverStorable7 [2023-04-03 01:08:09,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:09,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1567021927, now seen corresponding path program 2 times [2023-04-03 01:08:09,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:09,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000842151] [2023-04-03 01:08:09,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:09,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 50 proven. 18 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-04-03 01:08:09,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:09,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000842151] [2023-04-03 01:08:09,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000842151] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:09,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770938576] [2023-04-03 01:08:09,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-03 01:08:09,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:09,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:09,932 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 01:08:09,934 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 01:08:10,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-03 01:08:10,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:08:10,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 01:08:10,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-04-03 01:08:10,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:10,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770938576] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:10,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2023-04-03 01:08:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223178810] [2023-04-03 01:08:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:10,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 01:08:10,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 01:08:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:08:10,062 INFO L87 Difference]: Start difference. First operand 4069 states and 5125 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-04-03 01:08:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:10,542 INFO L93 Difference]: Finished difference Result 7677 states and 9829 transitions. [2023-04-03 01:08:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:08:10,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 192 [2023-04-03 01:08:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:10,560 INFO L225 Difference]: With dead ends: 7677 [2023-04-03 01:08:10,561 INFO L226 Difference]: Without dead ends: 4170 [2023-04-03 01:08:10,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-03 01:08:10,571 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 209 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:10,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 203 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:08:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2023-04-03 01:08:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3925. [2023-04-03 01:08:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 2349 states have (on average 1.179225202213708) internal successors, (2770), 2523 states have internal predecessors, (2770), 783 states have call successors, (783), 775 states have call predecessors, (783), 792 states have return successors, (1048), 782 states have call predecessors, (1048), 779 states have call successors, (1048) [2023-04-03 01:08:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 4601 transitions. [2023-04-03 01:08:10,815 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 4601 transitions. Word has length 192 [2023-04-03 01:08:10,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:10,816 INFO L495 AbstractCegarLoop]: Abstraction has 3925 states and 4601 transitions. [2023-04-03 01:08:10,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-04-03 01:08:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 4601 transitions. [2023-04-03 01:08:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-04-03 01:08:10,820 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:10,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:08:10,838 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 01:08:11,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:11,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:11,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash 146489922, now seen corresponding path program 3 times [2023-04-03 01:08:11,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:11,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658402797] [2023-04-03 01:08:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:11,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 37 proven. 18 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-04-03 01:08:11,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658402797] [2023-04-03 01:08:11,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658402797] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:11,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184559638] [2023-04-03 01:08:11,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-04-03 01:08:11,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:11,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:11,593 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 01:08:11,609 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 01:08:11,725 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-04-03 01:08:11,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:08:11,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-03 01:08:11,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:08:11,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:08:11,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184559638] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:08:11,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:08:11,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 25 [2023-04-03 01:08:11,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579920874] [2023-04-03 01:08:11,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:08:11,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 01:08:11,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:11,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 01:08:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2023-04-03 01:08:11,936 INFO L87 Difference]: Start difference. First operand 3925 states and 4601 transitions. Second operand has 11 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-03 01:08:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:12,496 INFO L93 Difference]: Finished difference Result 7542 states and 8905 transitions. [2023-04-03 01:08:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:08:12,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) Word has length 179 [2023-04-03 01:08:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:12,510 INFO L225 Difference]: With dead ends: 7542 [2023-04-03 01:08:12,510 INFO L226 Difference]: Without dead ends: 4326 [2023-04-03 01:08:12,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2023-04-03 01:08:12,515 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 96 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:12,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1185 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 01:08:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2023-04-03 01:08:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 4290. [2023-04-03 01:08:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 2575 states have (on average 1.173980582524272) internal successors, (3023), 2756 states have internal predecessors, (3023), 851 states have call successors, (851), 847 states have call predecessors, (851), 863 states have return successors, (1134), 852 states have call predecessors, (1134), 847 states have call successors, (1134) [2023-04-03 01:08:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 5008 transitions. [2023-04-03 01:08:12,777 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 5008 transitions. Word has length 179 [2023-04-03 01:08:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:12,779 INFO L495 AbstractCegarLoop]: Abstraction has 4290 states and 5008 transitions. [2023-04-03 01:08:12,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-03 01:08:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 5008 transitions. [2023-04-03 01:08:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-04-03 01:08:12,783 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:12,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 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, 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] [2023-04-03 01:08:12,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-03 01:08:12,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:12,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:12,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1816691429, now seen corresponding path program 1 times [2023-04-03 01:08:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772438527] [2023-04-03 01:08:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:12,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 67 proven. 37 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-03 01:08:13,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:13,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772438527] [2023-04-03 01:08:13,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772438527] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:13,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661489185] [2023-04-03 01:08:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:13,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:13,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:13,671 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 01:08:13,673 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 01:08:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:13,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-03 01:08:13,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 150 proven. 19 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-03 01:08:14,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:08:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-04-03 01:08:15,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661489185] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:08:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870262535] [2023-04-03 01:08:15,402 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2023-04-03 01:08:15,402 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:08:15,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:08:15,403 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:08:15,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:08:15,479 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:08:15,500 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:08:15,615 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:08:15,624 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:08:17,088 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:08:17,093 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:08:17,241 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:08:17,244 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:08:17,356 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:08:17,442 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:08:17,486 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:08:17,490 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:08:17,522 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-04-03 01:08:17,537 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-04-03 01:08:17,541 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:08:17,542 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:08:17,543 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:08:17,576 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:08:17,579 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-04-03 01:08:17,581 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:08:17,582 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:08:17,583 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:08:17,611 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:08:17,613 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:08:17,615 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:08:17,616 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:08:17,618 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:08:17,619 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:08:21,832 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67147#(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 01:08:21,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:08:21,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:08:21,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 14] total 45 [2023-04-03 01:08:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956789066] [2023-04-03 01:08:21,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:08:21,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-04-03 01:08:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-04-03 01:08:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=629, Invalid=10291, Unknown=0, NotChecked=0, Total=10920 [2023-04-03 01:08:21,853 INFO L87 Difference]: Start difference. First operand 4290 states and 5008 transitions. Second operand has 45 states, 32 states have (on average 6.15625) internal successors, (197), 33 states have internal predecessors, (197), 12 states have call successors, (74), 9 states have call predecessors, (74), 23 states have return successors, (78), 23 states have call predecessors, (78), 12 states have call successors, (78) [2023-04-03 01:08:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:23,763 INFO L93 Difference]: Finished difference Result 5468 states and 6414 transitions. [2023-04-03 01:08:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-03 01:08:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 32 states have (on average 6.15625) internal successors, (197), 33 states have internal predecessors, (197), 12 states have call successors, (74), 9 states have call predecessors, (74), 23 states have return successors, (78), 23 states have call predecessors, (78), 12 states have call successors, (78) Word has length 231 [2023-04-03 01:08:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:23,764 INFO L225 Difference]: With dead ends: 5468 [2023-04-03 01:08:23,765 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:08:23,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 591 SyntacticMatches, 30 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8482 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1041, Invalid=15215, Unknown=0, NotChecked=0, Total=16256 [2023-04-03 01:08:23,776 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 381 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:23,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1085 Invalid, 3815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 3487 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 01:08:23,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:08:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:08:23,776 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 01:08:23,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:08:23,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 231 [2023-04-03 01:08:23,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:23,777 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:08:23,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 32 states have (on average 6.15625) internal successors, (197), 33 states have internal predecessors, (197), 12 states have call successors, (74), 9 states have call predecessors, (74), 23 states have return successors, (78), 23 states have call predecessors, (78), 12 states have call successors, (78) [2023-04-03 01:08:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:08:23,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:08:23,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:08:23,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:23,985 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,SelfDestructingSolverStorable10 [2023-04-03 01:08:23,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:08:28,846 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:08:28,846 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:08:28,846 INFO L899 garLoopResultBuilder]: For program point L288(lines 265 289) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 276) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 241 296) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point L266-2(lines 266 287) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 241 296) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 323 348) no Hoare annotation was computed. [2023-04-03 01:08:28,847 INFO L899 garLoopResultBuilder]: For program point L349(lines 322 350) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point L342(line 342) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 297 356) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point L342-1(line 342) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 297 356) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 297 356) no Hoare annotation was computed. [2023-04-03 01:08:28,869 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 333) no Hoare annotation was computed. [2023-04-03 01:08:28,870 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 78 86) no Hoare annotation was computed. [2023-04-03 01:08:28,870 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 78 86) the Hoare annotation is: true [2023-04-03 01:08:28,870 INFO L895 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse2 (< ~waterLevel~0 2)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (= 0 ~systemActive~0)) (or .cse1 (< ~waterLevel~0 (+ ~pumpRunning~0 1)) (< 1 ~waterLevel~0)))) [2023-04-03 01:08:28,870 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 576) no Hoare annotation was computed. [2023-04-03 01:08:28,870 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse2 (< ~waterLevel~0 2)) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 (= 0 ~systemActive~0)) (or .cse1 (< ~waterLevel~0 (+ ~pumpRunning~0 1)) (< 1 ~waterLevel~0)))) [2023-04-03 01:08:28,870 INFO L899 garLoopResultBuilder]: For program point L568-1(line 568) no Hoare annotation was computed. [2023-04-03 01:08:28,870 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 558 582) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L902 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: true [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point L564-1(line 564) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 558 582) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 558 582) the Hoare annotation is: true [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 165 187) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L895 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:08:28,871 INFO L895 garLoopResultBuilder]: At program point L177-1(line 177) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and (= ~pumpRunning~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 182) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 175 182) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2023-04-03 01:08:28,871 INFO L895 garLoopResultBuilder]: At program point L172(line 172) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,872 INFO L895 garLoopResultBuilder]: At program point L171(line 171) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,872 INFO L895 garLoopResultBuilder]: At program point L171-1(line 171) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,872 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 165 187) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,872 INFO L899 garLoopResultBuilder]: For program point L129(line 129) no Hoare annotation was computed. [2023-04-03 01:08:28,872 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2023-04-03 01:08:28,872 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 123 146) no Hoare annotation was computed. [2023-04-03 01:08:28,872 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 123 146) no Hoare annotation was computed. [2023-04-03 01:08:28,872 INFO L899 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 123 146) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L135(line 135) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2023-04-03 01:08:28,873 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 816 830) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 816 830) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse4)) (.cse2 (= ~pumpRunning~0 0)) (.cse0 (< 2 ~waterLevel~0)) (.cse3 (< ~waterLevel~0 2))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))) (or .cse0 (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) .cse4 .cse3)))) [2023-04-03 01:08:28,874 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= |old(~systemActive~0)| 0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~systemActive~0))) .cse1) (or .cse0 .cse2 .cse1) (or .cse2 (< 1 ~waterLevel~0) (< ~waterLevel~0 (+ |old(~pumpRunning~0)| 1))))) [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point L820(lines 820 826) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 797 815) the Hoare annotation is: true [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 797 815) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L902 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: true [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 64 70) no Hoare annotation was computed. [2023-04-03 01:08:28,874 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 64 70) the Hoare annotation is: true [2023-04-03 01:08:28,874 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 508 553) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 508 553) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 988 1001) the Hoare annotation is: true [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 988 1001) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L895 garLoopResultBuilder]: At program point L673(line 673) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~6)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or (< 2 ~waterLevel~0) .cse3 (< ~waterLevel~0 2) .cse2))) [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 679) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L895 garLoopResultBuilder]: At program point L669(line 669) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (< 1 ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1 .cse2) (or (< 2 ~waterLevel~0) .cse3 (< ~waterLevel~0 2) .cse2))) [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point L669-1(line 669) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 684) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 663 687) no Hoare annotation was computed. [2023-04-03 01:08:28,875 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 0 ~systemActive~0))) (and (or (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 (and .cse1 .cse2)) (or (< 2 ~waterLevel~0) (not .cse2) .cse1 (< ~waterLevel~0 2) .cse0))) [2023-04-03 01:08:28,876 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 663 687) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) .cse0))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point L682-1(lines 663 687) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 2) .cse0))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point L890(line 890) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point L888(lines 888 894) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point L888-1(lines 880 895) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and .cse2 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)) (and .cse2 (<= (+ |old(~waterLevel~0)| 1) ~waterLevel~0) .cse0 .cse1))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 840 907) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point L851(lines 850 899) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point L880(lines 880 895) no Hoare annotation was computed. [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 840 907) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,877 INFO L895 garLoopResultBuilder]: At program point L872(line 872) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:08:28,877 INFO L899 garLoopResultBuilder]: For program point L870(lines 870 876) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point L870-1(lines 870 876) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L895 garLoopResultBuilder]: At program point L897(lines 850 899) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:08:28,878 INFO L895 garLoopResultBuilder]: At program point L862(line 862) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 2))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (not (= |old(~systemActive~0)| 1)) (and .cse3 .cse0 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (and .cse3 .cse0 .cse1 .cse2) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1)))) [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 866) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point L860-1(lines 860 866) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L895 garLoopResultBuilder]: At program point L900(lines 849 901) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 840 907) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 688 695) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0)) [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 688 695) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1002 1010) the Hoare annotation is: true [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 1002 1010) no Hoare annotation was computed. [2023-04-03 01:08:28,878 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 956 978) no Hoare annotation was computed. [2023-04-03 01:08:28,879 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 956 978) no Hoare annotation was computed. [2023-04-03 01:08:28,879 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 710) no Hoare annotation was computed. [2023-04-03 01:08:28,879 INFO L895 garLoopResultBuilder]: At program point L702(line 702) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0)) [2023-04-03 01:08:28,879 INFO L899 garLoopResultBuilder]: For program point L702-1(line 702) no Hoare annotation was computed. [2023-04-03 01:08:28,879 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 697 713) no Hoare annotation was computed. [2023-04-03 01:08:28,879 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 697 713) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0)) [2023-04-03 01:08:28,879 INFO L895 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 2) (= 0 ~systemActive~0)) [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point L708-1(lines 697 713) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 979 987) the Hoare annotation is: true [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 979 987) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L902 garLoopResultBuilder]: At program point L785(line 785) the Hoare annotation is: true [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 778 796) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point L785-1(line 785) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 778 796) the Hoare annotation is: true [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point L609(lines 608 627) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 605 628) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L895 garLoopResultBuilder]: At program point L618(line 618) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not .cse1)) (.cse0 (< |old(~waterLevel~0)| 2)) (.cse5 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not .cse2))) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) .cse4 (< |old(~waterLevel~0)| 1) .cse5) (or .cse4 .cse0 .cse5 .cse3)))) [2023-04-03 01:08:28,880 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 605 628) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse3)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1) (or .cse0 .cse1 (< |old(~waterLevel~0)| (+ 2 |old(~pumpRunning~0)|)) .cse2) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) (= 0 ~systemActive~0) .cse2)))) [2023-04-03 01:08:28,880 INFO L895 garLoopResultBuilder]: At program point L616(lines 616 622) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse6)) (.cse1 (and .cse7 .cse2)) (.cse3 (< |old(~waterLevel~0)| 2)) (.cse5 (= 0 ~systemActive~0)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) (or .cse0 (and (not (= ~pumpRunning~0 ~waterLevel~0)) .cse2) .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4 (not .cse5)) (or .cse3 .cse6 (and .cse7 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse5 .cse4)))) [2023-04-03 01:08:28,880 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 605 628) no Hoare annotation was computed. [2023-04-03 01:08:28,880 INFO L895 garLoopResultBuilder]: At program point L611(line 611) the Hoare annotation is: (let ((.cse1 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (< |old(~waterLevel~0)| (+ 2 |old(~pumpRunning~0)|)) .cse1) (or (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (= 0 ~systemActive~0) .cse1) (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1)))) [2023-04-03 01:08:28,880 INFO L902 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 90 119) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point L115(lines 90 119) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 90 119) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point L104-1(lines 104 108) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point L100-2(lines 100 114) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 947 955) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 947 955) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 911 922) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 911 922) the Hoare annotation is: (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (= 0 ~systemActive~0) (< 2 |old(~waterLevel~0)|)) [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 831 838) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 831 838) the Hoare annotation is: true [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 658) no Hoare annotation was computed. [2023-04-03 01:08:28,881 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 637 661) no Hoare annotation was computed. [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1) (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1))) [2023-04-03 01:08:28,882 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 637 661) no Hoare annotation was computed. [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) .cse1) (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2) .cse1))) [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 637 661) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point L647(line 647) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1))) [2023-04-03 01:08:28,882 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 653) no Hoare annotation was computed. [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point L643(line 643) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse2) (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2))) [2023-04-03 01:08:28,882 INFO L899 garLoopResultBuilder]: For program point L643-1(line 643) no Hoare annotation was computed. [2023-04-03 01:08:28,882 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 923 934) no Hoare annotation was computed. [2023-04-03 01:08:28,882 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 923 934) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) .cse0 .cse2) (or .cse1 .cse2 (= 0 ~systemActive~0) .cse3))) [2023-04-03 01:08:28,882 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 584 591) the Hoare annotation is: true [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 588) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 584 591) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 71 77) the Hoare annotation is: true [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 71 77) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 733 741) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 733 741) the Hoare annotation is: true [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 742 777) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point L772(line 772) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point L772-1(line 772) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 742 777) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 195 240) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 195 240) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 155 164) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 155 164) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~systemActive~0)| 1)) (< |old(~waterLevel~0)| (+ |old(~pumpRunning~0)| 1))) [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 155 164) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 722 732) no Hoare annotation was computed. [2023-04-03 01:08:28,883 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 722 732) the Hoare annotation is: true [2023-04-03 01:08:28,883 INFO L902 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: true [2023-04-03 01:08:28,883 INFO L899 garLoopResultBuilder]: For program point L727-1(line 727) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 714 721) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 714 721) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2) .cse2) (or .cse0 (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse1 .cse2))) [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 462 507) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 462 507) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 54 63) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 54 63) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L409(lines 408 428) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L440-1(line 440) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L405(lines 405 446) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 359 461) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L424(line 424) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 359 461) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-04-03 01:08:28,884 INFO L899 garLoopResultBuilder]: For program point L408-2(lines 408 428) no Hoare annotation was computed. [2023-04-03 01:08:28,887 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 359 461) no Hoare annotation was computed. [2023-04-03 01:08:28,887 INFO L899 garLoopResultBuilder]: For program point L429(lines 407 430) no Hoare annotation was computed. [2023-04-03 01:08:28,887 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 404) no Hoare annotation was computed. [2023-04-03 01:08:28,888 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 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 935 946) the Hoare annotation is: true [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 935 946) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 147 153) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 147 153) the Hoare annotation is: true [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2023-04-03 01:08:28,888 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:08:28,888 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:08:28,890 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:28,892 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:08:28,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:08:28 BoogieIcfgContainer [2023-04-03 01:08:28,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:08:28,917 INFO L158 Benchmark]: Toolchain (without parser) took 38044.74ms. Allocated memory was 300.9MB in the beginning and 1.1GB in the end (delta: 756.0MB). Free memory was 251.6MB in the beginning and 839.0MB in the end (delta: -587.4MB). Peak memory consumption was 629.6MB. Max. memory is 8.0GB. [2023-04-03 01:08:28,917 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:08:28,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.33ms. Allocated memory is still 300.9MB. Free memory was 251.2MB in the beginning and 231.9MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-04-03 01:08:28,930 INFO L158 Benchmark]: Boogie Preprocessor took 49.51ms. Allocated memory is still 300.9MB. Free memory was 231.9MB in the beginning and 228.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:08:28,930 INFO L158 Benchmark]: RCFGBuilder took 744.78ms. Allocated memory is still 300.9MB. Free memory was 228.1MB in the beginning and 233.9MB in the end (delta: -5.8MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2023-04-03 01:08:28,931 INFO L158 Benchmark]: TraceAbstraction took 36848.67ms. Allocated memory was 300.9MB in the beginning and 1.1GB in the end (delta: 756.0MB). Free memory was 232.9MB in the beginning and 839.5MB in the end (delta: -606.6MB). Peak memory consumption was 610.2MB. Max. memory is 8.0GB. [2023-04-03 01:08:28,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.33ms. Allocated memory is still 300.9MB. Free memory was 251.2MB in the beginning and 231.9MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.51ms. Allocated memory is still 300.9MB. Free memory was 231.9MB in the beginning and 228.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 744.78ms. Allocated memory is still 300.9MB. Free memory was 228.1MB in the beginning and 233.9MB in the end (delta: -5.8MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * TraceAbstraction took 36848.67ms. Allocated memory was 300.9MB in the beginning and 1.1GB in the end (delta: 756.0MB). Free memory was 232.9MB in the beginning and 839.5MB in the end (delta: -606.6MB). Peak memory consumption was 610.2MB. 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: 588]: 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 44 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3033 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2897 mSDsluCounter, 6339 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5106 mSDsCounter, 1789 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12117 IncrementalHoareTripleChecker+Invalid, 13906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1789 mSolverCounterUnsat, 1233 mSDtfsCounter, 12117 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1878 GetRequests, 1441 SyntacticMatches, 46 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16968 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4290occurred in iteration=10, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1348 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 7306 PreInvPairs, 7532 NumberOfFragments, 1538 HoareAnnotationTreeSize, 7306 FomulaSimplifications, 24495 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 69 FomulaSimplificationsInter, 24059 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 2048 NumberOfCodeBlocks, 1988 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2393 ConstructedInterpolants, 0 QuantifiedInterpolants, 5788 SizeOfPredicates, 38 NumberOfNonLiveVariables, 2807 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 1042/1165 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: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(systemActive) == 1)) || \old(waterLevel) < \old(pumpRunning) + 1 - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: (((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || (((splverifierCounter == 0 && 2 <= waterLevel) && waterLevel <= 2) && !(0 == systemActive))) || !(\old(systemActive) == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 1) && 1 <= waterLevel)) || (((pumpRunning == 0 && splverifierCounter == 0) && 2 <= waterLevel) && waterLevel <= 2)) || \old(waterLevel) < \old(pumpRunning) + 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-03 01:08:28,962 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...